From 8327599ce9ca5e78d2ef60f9d531ed358c7c12f4 Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 22:06:17 +0200 Subject: [PATCH 01/25] Add design spec for x402 payment support (Node-first) Approach A: subpath export (glassnode-api/x402) + core x402 preset, with x402-fetch/viem as optional peer deps. Coinbase x402-fetch v1, Base/USDC, maxPaymentPerCall cap, apiKey optional under x402. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- .../specs/2026-07-14-x402-support-design.md | 187 ++++++++++++++++++ 1 file changed, 187 insertions(+) create mode 100644 docs/superpowers/specs/2026-07-14-x402-support-design.md diff --git a/docs/superpowers/specs/2026-07-14-x402-support-design.md b/docs/superpowers/specs/2026-07-14-x402-support-design.md new file mode 100644 index 0000000..e8edace --- /dev/null +++ b/docs/superpowers/specs/2026-07-14-x402-support-design.md @@ -0,0 +1,187 @@ +# Design: x402 payment support (Node-first) + +**Date:** 2026-07-14 +**Status:** Approved design — ready for implementation planning +**Package:** `glassnode-api` + +## Overview + +Glassnode now exposes a paid, per-call API over the [x402 payment protocol](https://docs.cdp.coinbase.com/x402) +at `https://x402.glassnode.com`. Requests that require payment return `402 Payment Required`; an +x402-aware client signs a USDC payment authorization on **Base mainnet** and retries. Pricing (authoritative +value always comes from the live `402` challenge): + +- Metadata endpoints (`/v1/metadata/*`): **$0.01 USDC/call** +- Metrics endpoints (`/v1/metrics/*`): **$0.05 USDC/call** + +This design adds first-class x402 support to the library **without** shipping crypto/wallet code in the +core package. x402 tooling is opt-in via a subpath export and optional peer dependencies. + +## Goals + +- Let a Node.js caller make paid Glassnode calls through the existing `GlassnodeAPI` client. +- Keep the core package's footprint unchanged: single runtime dependency (`zod`), browser-friendly. +- Make the crypto stack (`x402-fetch`, `viem`) **optional** — installed only by users who make paid calls. +- Provide a built-in spend guard with a safe default. + +## Non-goals (YAGNI) + +- Browser signing (injected wallet / EIP-1193). Explicitly deferred to a later iteration; the design + leaves room for it in the same subpath. +- Networks other than Base, or tokens other than USDC. +- Payment receipts, balance top-ups, streaming, or any wallet management beyond signing a call. + +## Key decisions + +1. **Approach A — subpath export + core preset.** The turnkey helper lives at the `glassnode-api/x402` + subpath; the core entry (`glassnode-api`) never imports crypto. Chosen over an all-in-core config + (leaks crypto into the core module graph; constructors can't `await` a dynamic import) and over a + separate companion package (extra release pipeline for a small helper). +2. **x402 client: `x402-fetch` v1 (Coinbase lineage).** Uses + `wrapFetchWithPayment(fetch, walletClient, maxValue?)`. Matches the "x402 Quickstart for Buyers" + referenced by Glassnode's own x402 docs. +3. **Spend safety exposed with a default cap.** `maxPaymentPerCall` (USDC decimal string) defaults to + `'0.06'` (just above the $0.05 metrics price), converted to `maxValue` atomic units. Tighter than + `x402-fetch`'s own 0.1 USDC default. +4. **Node-first.** Browser parity is a separate, later effort. + +## Architecture + +### Module layout + +| File | Change | Notes | +| --- | --- | --- | +| `src/x402.ts` | **new** | Compiled to subpath export `glassnode-api/x402`. Exports `createX402Fetch` + types. **All** optional-dep usage is behind a dynamic `import()` here. | +| `src/types/config.ts` | edit | Add `x402?: boolean` to the config schema; export `X402_API_URL = 'https://x402.glassnode.com'`. Make `apiUrl` optional (no Zod default) so "explicitly set" is detectable. | +| `src/glassnode-api.ts` | edit | Base-URL resolution only (see below). Request path, retries, and Zod validation unchanged. | +| `src/errors.ts` | edit | Add a friendly `402` message. | +| `src/index.ts` | unchanged | Deliberately does **not** re-export the helper, keeping the core entry `zod`-only. `X402_API_URL` and the `x402` config flag flow through the normal config exports (plain strings/booleans, no crypto). | + +### Core API + +```ts +new GlassnodeAPI({ + apiKey?: string, + x402?: boolean, // default false + apiUrl?: string, // explicit override always wins + fetch?: typeof fetch, // pass an x402-wrapped fetch for paid calls + // ...existing options unchanged +}); +``` + +Base-URL resolution (in the constructor): + +``` +apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL) +``` + +- Fully backward-compatible: with neither `apiUrl` nor `x402`, the URL stays `https://api.glassnode.com`. +- **`apiKey` becomes optional under x402.** Glassnode's x402 endpoint is authorized by payment, not an API + key (its own curl example sends no `api_key`). So: + - Config validation: `apiKey` is required when `x402` is falsy (unchanged, backward-compatible) and + **optional** when `x402` is `true`. Implement with a Zod `superRefine`/`refine` on the config object. + - Request building: `request()` appends `api_key=` **only when an `apiKey` is present**. When absent + (x402-only usage) the param is omitted entirely. An API key *may* still be supplied alongside x402 if + the caller has one; it is not forced. +- No other changes to the request loop: the injected x402-wrapped `fetch` handles `402` transparently, + below the library's existing `maxRetries` (429/5xx) loop and before Zod validation. + +### Helper: `glassnode-api/x402` + +```ts +type X402FetchOptions = { + account: LocalAccount; // viem account, e.g. privateKeyToAccount(pk) + maxPaymentPerCall?: string; // USDC decimal, default '0.06' + fetch?: typeof fetch; // base fetch to wrap, default globalThis.fetch + walletClient?: WalletClient; // advanced: supply a prebuilt viem wallet client instead of `account` +}; + +async function createX402Fetch(options: X402FetchOptions): Promise; +``` + +Behavior: + +1. Dynamically `import('x402-fetch')` and `import('viem')` (+ `viem/chains`). If either module is missing, + throw a clear error: *"createX402Fetch requires the optional peer dependencies `x402-fetch` and `viem`. + Install them: `pnpm add x402-fetch viem`."* +2. If no `walletClient` is given, build one for Base: + `createWalletClient({ account, chain: base, transport: http() })`. +3. Convert `maxPaymentPerCall` → `maxValue` via `parseUnits(value, 6)` (USDC has 6 decimals). +4. Return `wrapFetchWithPayment(baseFetch, walletClient, maxValue)`, typed as `typeof fetch` so it drops + straight into the `fetch` config. + +### Usage (target ergonomics) + +```ts +import { GlassnodeAPI } from 'glassnode-api'; +import { createX402Fetch } from 'glassnode-api/x402'; +import { privateKeyToAccount } from 'viem/accounts'; + +const account = privateKeyToAccount(process.env.PRIVATE_KEY as `0x${string}`); + +const api = new GlassnodeAPI({ + x402: true, // -> https://x402.glassnode.com + fetch: await createX402Fetch({ account, maxPaymentPerCall: '0.06' }), +}); + +// Pays $0.05 USDC on Base, transparently: +const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); +``` + +## Payment & error flow + +- **Happy path:** the wrapped fetch intercepts `402`, verifies the price is within `maxValue`, signs a USDC + authorization on Base, and retries. The library only ever observes the resulting `200`, then validates + with Zod as today. +- **Composition with existing retries:** `maxRetries` handles 429/5xx and wraps the injected fetch; x402's + 402 handling lives *inside* that fetch. No conflict. +- **Misconfiguration guard:** if a `402` reaches the library's request loop (e.g. `x402: true` but a plain, + unwrapped `fetch` was passed), map it to a friendly, **non-retryable** `GlassnodeApiError`: + *"Payment required — pass an x402-capable fetch (see `glassnode-api/x402`)."* Add `402` to the + `STATUS_MESSAGES` map. +- **Over-cap / insufficient funds:** `wrapFetchWithPayment` throws before paying (or the payment fails); + the error propagates with the client's message through the library's existing error handling. + +## Packaging & build + +- `package.json`: + - `exports`: add a `"./x402"` subpath (`import` / `require` / `types`). + - `peerDependencies`: `x402-fetch` and `viem`, both marked `optional: true` in `peerDependenciesMeta`. + - `devDependencies`: add `x402-fetch` and `viem` so `src/x402.ts` type-checks and tests can run. + - `files`: existing globs (`dist/*.js`, `dist/*.d.ts`) already capture the new subpath output. + - Version: **minor** bump (new backward-compatible feature) + CHANGELOG entry. +- Node build (`tsc`): compiles `src/x402.ts` as part of `src/**/*`. +- Browser build (`rollup`): **do not** add `src/x402.ts` to the inputs — the browser bundle stays + crypto-free. Browser x402 is deferred. + +## Testing (Vitest) + +Core (no crypto, no network): + +- `x402: true` → base URL is `https://x402.glassnode.com`. +- Explicit `apiUrl` overrides `x402`. +- Neither set → `https://api.glassnode.com` (regression guard). +- A mock x402-wrapped `fetch` flows through to validated data unchanged. +- A `402` from a plain fetch → the friendly non-retryable error. +- `x402: true` with no `apiKey` constructs successfully, and the outgoing URL omits `api_key`. +- `x402: true` with an `apiKey` still appends `api_key`. +- No `x402`, no `apiKey` → constructor throws (unchanged required-key behavior). + +Helper (mock the dynamic imports; no real crypto/network): + +- Missing optional deps → clear install error. +- Default `maxPaymentPerCall` applied and converted to the expected `maxValue`. +- Custom `maxPaymentPerCall` passed through. +- Returns a callable `fetch`. + +## Docs + +- README: a "Paid calls with x402" section (Node example, spend cap, links to Glassnode x402 + the + buyer quickstart), noting browser support is planned. +- CHANGELOG entry under the new minor version. + +## References + +- x402 buyer quickstart: https://docs.cdp.coinbase.com/x402/quickstart-for-buyers +- `x402-fetch` (v1) `wrapFetchWithPayment(fetch, walletClient, maxValue?, selector?)` +- Glassnode x402 skill: https://x402.glassnode.com/SKILL.md From 1f132bc310eaf1ce072475522f27acdeb2dd9af9 Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 22:14:25 +0200 Subject: [PATCH 02/25] Incorporate Opus design-review findings into x402 spec - Mandate excluding src/x402.ts from browser tsconfig/rollup (release-pipeline risk) - Add source DEFAULT_API_URL constant; apiUrl .url().optional(); apiKey field -> string|undefined - Note apiKey conditional-required is runtime-only (z.input) - Helper: import type for viem, verify signer type before building walletClient, cast wrapped fetch as typeof fetch, cut walletClient override (YAGNI) - Tests: vi.mock dynamic imports, assert parseUnits('0.06',6)===60000n, 402-not-retried - Add per-call spend-guard caveat + wallet-safety guidance; subpath CJS-only note Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- .../specs/2026-07-14-x402-support-design.md | 74 ++++++++++++++----- 1 file changed, 57 insertions(+), 17 deletions(-) diff --git a/docs/superpowers/specs/2026-07-14-x402-support-design.md b/docs/superpowers/specs/2026-07-14-x402-support-design.md index e8edace..712dd89 100644 --- a/docs/superpowers/specs/2026-07-14-x402-support-design.md +++ b/docs/superpowers/specs/2026-07-14-x402-support-design.md @@ -52,8 +52,8 @@ core package. x402 tooling is opt-in via a subpath export and optional peer depe | File | Change | Notes | | --- | --- | --- | | `src/x402.ts` | **new** | Compiled to subpath export `glassnode-api/x402`. Exports `createX402Fetch` + types. **All** optional-dep usage is behind a dynamic `import()` here. | -| `src/types/config.ts` | edit | Add `x402?: boolean` to the config schema; export `X402_API_URL = 'https://x402.glassnode.com'`. Make `apiUrl` optional (no Zod default) so "explicitly set" is detectable. | -| `src/glassnode-api.ts` | edit | Base-URL resolution only (see below). Request path, retries, and Zod validation unchanged. | +| `src/types/config.ts` | edit | Add `x402?: boolean`; export `X402_API_URL = 'https://x402.glassnode.com'` **and** a source-level `DEFAULT_API_URL = 'https://api.glassnode.com'` constant (today that literal only lives inside the Zod default). Change `apiUrl` to `z.string().url().optional()` (keep `.url()` validation, drop `.default()`) so "explicitly set" is detectable. Make `apiKey` `.optional()` and add an object-level `.refine` requiring it when `x402` is falsy. | +| `src/glassnode-api.ts` | edit | Base-URL resolution (see below); change the `private apiKey` field type to `string \| undefined` and the `this.apiKey =` assignment accordingly. Request path, retries, and Zod validation otherwise unchanged. | | `src/errors.ts` | edit | Add a friendly `402` message. | | `src/index.ts` | unchanged | Deliberately does **not** re-export the helper, keeping the core entry `zod`-only. `X402_API_URL` and the `x402` config flag flow through the normal config exports (plain strings/booleans, no crypto). | @@ -80,6 +80,10 @@ apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL) key (its own curl example sends no `api_key`). So: - Config validation: `apiKey` is required when `x402` is falsy (unchanged, backward-compatible) and **optional** when `x402` is `true`. Implement with a Zod `superRefine`/`refine` on the config object. + Note this is a **runtime-only** guard: `GlassnodeConfig = z.input<...>` will type `apiKey` as optional + unconditionally (cross-field requiredness isn't expressible in the input type), so omitting `apiKey` + with `x402` falsy compiles but throws at construction. (Verified: a Zod-4 object `.refine` still parses + correctly and nothing in the repo relies on `.shape`/`.extend` of this schema.) - Request building: `request()` appends `api_key=` **only when an `apiKey` is present**. When absent (x402-only usage) the param is omitted entirely. An API key *may* still be supplied alongside x402 if the caller has one; it is not forced. @@ -89,11 +93,12 @@ apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL) ### Helper: `glassnode-api/x402` ```ts +import type { LocalAccount } from 'viem'; // type-only — must not trigger a runtime load + type X402FetchOptions = { account: LocalAccount; // viem account, e.g. privateKeyToAccount(pk) maxPaymentPerCall?: string; // USDC decimal, default '0.06' fetch?: typeof fetch; // base fetch to wrap, default globalThis.fetch - walletClient?: WalletClient; // advanced: supply a prebuilt viem wallet client instead of `account` }; async function createX402Fetch(options: X402FetchOptions): Promise; @@ -101,14 +106,24 @@ async function createX402Fetch(options: X402FetchOptions): Promise Behavior: -1. Dynamically `import('x402-fetch')` and `import('viem')` (+ `viem/chains`). If either module is missing, - throw a clear error: *"createX402Fetch requires the optional peer dependencies `x402-fetch` and `viem`. - Install them: `pnpm add x402-fetch viem`."* -2. If no `walletClient` is given, build one for Base: - `createWalletClient({ account, chain: base, transport: http() })`. -3. Convert `maxPaymentPerCall` → `maxValue` via `parseUnits(value, 6)` (USDC has 6 decimals). -4. Return `wrapFetchWithPayment(baseFetch, walletClient, maxValue)`, typed as `typeof fetch` so it drops - straight into the `fetch` config. +1. Dynamically `import('x402-fetch')` and (only if needed for signer/units) `import('viem')`. If either + module is missing, throw a clear error: *"createX402Fetch requires the optional peer dependencies + `x402-fetch` and `viem`. Install them: `pnpm add x402-fetch viem`."* All value imports of the optional + deps stay inside the async function; only `import type` references appear at module scope, so importing + the subpath without the peers installed does not throw until `createX402Fetch` is actually called. +2. **Signer:** during implementation, check `x402-fetch@1`'s `.d.ts` for the accepted signer type. x402 + signs an off-chain EIP-3009 authorization (the facilitator submits on-chain), so the transport/chain are + largely inert. If `wrapFetchWithPayment` accepts a bare `LocalAccount`, pass `account` directly and do + **not** build a wallet client. Only if it strictly requires a `WalletClient`, construct a minimal Base + one: `createWalletClient({ account, chain: base, transport: http() })`. (Prefer the bare-account path.) +3. Convert `maxPaymentPerCall` → `maxValue: bigint` via `parseUnits(value, 6)` (USDC has 6 decimals); + e.g. `parseUnits('0.06', 6) === 60000n`. +4. Return `wrapFetchWithPayment(baseFetch, signer, maxValue)`. Its return type is `(input, init?) => + Promise`, which does **not** structurally include `fetch.preconnect`; cast the result + `as typeof fetch` so it satisfies the config's `FetchFn` under `strict`. + +> The `walletClient` advanced override is intentionally **cut from v1** (YAGNI) — trivially re-addable if a +> caller needs a custom transport/chain. ### Usage (target ergonomics) @@ -150,9 +165,18 @@ const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); - `devDependencies`: add `x402-fetch` and `viem` so `src/x402.ts` type-checks and tests can run. - `files`: existing globs (`dist/*.js`, `dist/*.d.ts`) already capture the new subpath output. - Version: **minor** bump (new backward-compatible feature) + CHANGELOG entry. -- Node build (`tsc`): compiles `src/x402.ts` as part of `src/**/*`. +- Node build (`tsc`): compiles `src/x402.ts` as part of `src/**/*` (NodeNext resolves viem/x402-fetch + subpath exports fine). - Browser build (`rollup`): **do not** add `src/x402.ts` to the inputs — the browser bundle stays - crypto-free. Browser x402 is deferred. + crypto-free. **Required (release-pipeline risk):** `tsconfig.browser.json` uses `include: ["src/**/*"]` + with `moduleResolution: node` (classic), which **cannot** resolve viem/x402-fetch `exports`-map subpaths. + So `src/x402.ts` must be added to `exclude` in `tsconfig.browser.json` (and, defensively, to the + `@rollup/plugin-typescript` `exclude`), otherwise `build:browser` — and therefore `prepublishOnly` — fails + to type-check. Add the x402 test file to the same exclude. +- **Subpath is CJS-only by design.** With no `"type": "module"`, `tsc` emits `dist/x402.js` as CommonJS and + there is no rollup ESM bundle for the subpath; `import`/`require` both resolve to it. ESM consumers get it + via Node named-export interop, and its inner dynamic `import()` is the correct CJS→ESM bridge to the + ESM-only viem/x402-fetch. No tree-shakeable ESM is expected here. ## Testing (Vitest) @@ -163,21 +187,37 @@ Core (no crypto, no network): - Neither set → `https://api.glassnode.com` (regression guard). - A mock x402-wrapped `fetch` flows through to validated data unchanged. - A `402` from a plain fetch → the friendly non-retryable error. +- A `402` is **not** retried even with `maxRetries > 0` (locks in that `402` is absent from + `GlassnodeApiError.isRetryable`). - `x402: true` with no `apiKey` constructs successfully, and the outgoing URL omits `api_key`. - `x402: true` with an `apiKey` still appends `api_key`. - No `x402`, no `apiKey` → constructor throws (unchanged required-key behavior). Helper (mock the dynamic imports; no real crypto/network): -- Missing optional deps → clear install error. -- Default `maxPaymentPerCall` applied and converted to the expected `maxValue`. +- Use `vi.mock('x402-fetch', factory)` / `vi.mock('viem', factory)`. `x402-fetch` and `viem` must be added + as **devDependencies** so the module specifiers resolve at test time; the "missing deps" case is exercised + by making the mock factory throw / reject (not by real absence). +- Missing optional deps → clear install error (via a throwing mock). +- Default `maxPaymentPerCall` converts to `60000n` (`parseUnits('0.06', 6)`) and is passed as `maxValue`; + assert the concrete bigint. - Custom `maxPaymentPerCall` passed through. - Returns a callable `fetch`. +## Spend safety (scope of the guard) + +`maxPaymentPerCall` bounds a **single** request only — it does **not** cap cumulative spend across many +calls, so a retry storm or an agent loop can still drain a wallet within the per-call ceiling. The library +will not model a cumulative budget in v1 (a caller can wrap their own counter). The README must: + +- State clearly that the guard is per-call, not a total budget. +- Recommend a **dedicated, funded-but-limited** wallet for agent use (not a primary key). +- Warn against hardcoding keys; the example loads `PRIVATE_KEY` from the environment. + ## Docs -- README: a "Paid calls with x402" section (Node example, spend cap, links to Glassnode x402 + the - buyer quickstart), noting browser support is planned. +- README: a "Paid calls with x402" section (Node example, per-call spend cap + the wallet-safety warnings + above, links to Glassnode x402 + the buyer quickstart), noting browser support is planned. - CHANGELOG entry under the new minor version. ## References From 13d238296e73186fb098d2c4553ed83a173d1b5d Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 22:21:41 +0200 Subject: [PATCH 03/25] Update x402 spec from live-endpoint probe + feedback Verified against live x402.glassnode.com / .tech 402 challenges: - Endpoint speaks x402 v2 (x402Version:2, header-based challenge, eip155 CAIP-2 networks) -> switch client from Coinbase x402-fetch v1 to x402-foundation @x402/fetch v2 (v1 cannot parse v2) - Bulk endpoints 404 over x402 -> callBulkMetric unsupported in x402 mode - Pricing confirmed: metadata $0.01 (10000), metrics $0.05 (50000) - Testnet x402.glassnode.tech = Base Sepolia (eip155:84532); add X402_TESTNET_API_URL + opt-in testnet integration test step - Require fetch when x402:true (construction-time Zod refine) Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- .../specs/2026-07-14-x402-support-design.md | 130 +++++++++++------- 1 file changed, 82 insertions(+), 48 deletions(-) diff --git a/docs/superpowers/specs/2026-07-14-x402-support-design.md b/docs/superpowers/specs/2026-07-14-x402-support-design.md index 712dd89..3489605 100644 --- a/docs/superpowers/specs/2026-07-14-x402-support-design.md +++ b/docs/superpowers/specs/2026-07-14-x402-support-design.md @@ -6,13 +6,21 @@ ## Overview -Glassnode now exposes a paid, per-call API over the [x402 payment protocol](https://docs.cdp.coinbase.com/x402) -at `https://x402.glassnode.com`. Requests that require payment return `402 Payment Required`; an -x402-aware client signs a USDC payment authorization on **Base mainnet** and retries. Pricing (authoritative -value always comes from the live `402` challenge): +Glassnode now exposes a paid, per-call API over the [x402 payment protocol](https://x402.org) +at `https://x402.glassnode.com` (mainnet) and `https://x402.glassnode.tech` (testnet). Requests that +require payment return `402 Payment Required` with a header-based challenge; an x402-aware client signs a +USDC payment authorization and retries. -- Metadata endpoints (`/v1/metadata/*`): **$0.01 USDC/call** -- Metrics endpoints (`/v1/metrics/*`): **$0.05 USDC/call** +**Verified from the live `402` challenges** (`payment-required` header, base64 JSON, `x402Version: 2`, +scheme `exact`; `accepts[].amount` is USDC atomic units, 6 decimals — always authoritative): + +| Endpoint class | Price | Mainnet network / asset | Testnet network / asset | +| --------------------------- | ------------------- | ----------------------------------------- | -------------------------------------------- | +| Metadata (`/v1/metadata/*`) | `10000` = **$0.01** | `eip155:8453` (Base) / USDC `0x8335…2913` | `eip155:84532` (Base Sepolia) / `0x036C…F7e` | +| Metrics (`/v1/metrics/*`) | `50000` = **$0.05** | same | same | + +**Bulk metrics are NOT exposed over x402** — `GET /v1/metrics/.../bulk` returns `404` on the x402 host. +`callBulkMetric()` is therefore unsupported in x402 mode (see Non-goals). This design adds first-class x402 support to the library **without** shipping crypto/wallet code in the core package. x402 tooling is opt-in via a subpath export and optional peer dependencies. @@ -21,14 +29,18 @@ core package. x402 tooling is opt-in via a subpath export and optional peer depe - Let a Node.js caller make paid Glassnode calls through the existing `GlassnodeAPI` client. - Keep the core package's footprint unchanged: single runtime dependency (`zod`), browser-friendly. -- Make the crypto stack (`x402-fetch`, `viem`) **optional** — installed only by users who make paid calls. +- Make the crypto stack (`@x402/fetch`, `viem`) **optional** — installed only by users who make paid calls. - Provide a built-in spend guard with a safe default. ## Non-goals (YAGNI) - Browser signing (injected wallet / EIP-1193). Explicitly deferred to a later iteration; the design leaves room for it in the same subpath. -- Networks other than Base, or tokens other than USDC. +- **Bulk metrics over x402.** The x402 host 404s on `/v1/metrics/.../bulk`; `callBulkMetric()` stays a + free-API (`api.glassnode.com`) feature only. In x402 mode a bulk call will surface the normal `404` + error; the README documents this limitation. (No special guard in v1 unless we later choose to throw a + clearer message.) +- Networks other than Base / Base Sepolia, or tokens other than USDC. - Payment receipts, balance top-ups, streaming, or any wallet management beyond signing a call. ## Key decisions @@ -37,25 +49,29 @@ core package. x402 tooling is opt-in via a subpath export and optional peer depe subpath; the core entry (`glassnode-api`) never imports crypto. Chosen over an all-in-core config (leaks crypto into the core module graph; constructors can't `await` a dynamic import) and over a separate companion package (extra release pipeline for a small helper). -2. **x402 client: `x402-fetch` v1 (Coinbase lineage).** Uses - `wrapFetchWithPayment(fetch, walletClient, maxValue?)`. Matches the "x402 Quickstart for Buyers" - referenced by Glassnode's own x402 docs. +2. **x402 client: `@x402/fetch` v2 (x402-foundation).** _Revised from the initial Coinbase `x402-fetch` v1 + pick — pending final confirmation._ The live Glassnode endpoints return **`x402Version: 2`** with a + header-based `payment-required` challenge and CAIP-2 networks (`eip155:8453`); the Coinbase **unscoped + `x402-fetch` v1** (x402Version 1, network `"base"`, body-based challenge) cannot parse this, so the + scoped **`@x402/fetch` v2** foundation client is required. Its exact wrapper API (the v2 equivalent of + `wrapFetchWithPayment` and its max-amount option) is to be confirmed against the installed package + during implementation. 3. **Spend safety exposed with a default cap.** `maxPaymentPerCall` (USDC decimal string) defaults to - `'0.06'` (just above the $0.05 metrics price), converted to `maxValue` atomic units. Tighter than - `x402-fetch`'s own 0.1 USDC default. + `'0.06'` (just above the $0.05 metrics price), converted to atomic units (`parseUnits(value, 6)`) and + passed to the client's max-amount guard. 4. **Node-first.** Browser parity is a separate, later effort. ## Architecture ### Module layout -| File | Change | Notes | -| --- | --- | --- | -| `src/x402.ts` | **new** | Compiled to subpath export `glassnode-api/x402`. Exports `createX402Fetch` + types. **All** optional-dep usage is behind a dynamic `import()` here. | -| `src/types/config.ts` | edit | Add `x402?: boolean`; export `X402_API_URL = 'https://x402.glassnode.com'` **and** a source-level `DEFAULT_API_URL = 'https://api.glassnode.com'` constant (today that literal only lives inside the Zod default). Change `apiUrl` to `z.string().url().optional()` (keep `.url()` validation, drop `.default()`) so "explicitly set" is detectable. Make `apiKey` `.optional()` and add an object-level `.refine` requiring it when `x402` is falsy. | -| `src/glassnode-api.ts` | edit | Base-URL resolution (see below); change the `private apiKey` field type to `string \| undefined` and the `this.apiKey =` assignment accordingly. Request path, retries, and Zod validation otherwise unchanged. | -| `src/errors.ts` | edit | Add a friendly `402` message. | -| `src/index.ts` | unchanged | Deliberately does **not** re-export the helper, keeping the core entry `zod`-only. `X402_API_URL` and the `x402` config flag flow through the normal config exports (plain strings/booleans, no crypto). | +| File | Change | Notes | +| ---------------------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | +| `src/x402.ts` | **new** | Compiled to subpath export `glassnode-api/x402`. Exports `createX402Fetch` + types. **All** optional-dep usage is behind a dynamic `import()` here. | +| `src/types/config.ts` | edit | Add `x402?: boolean`; export `X402_API_URL = 'https://x402.glassnode.com'`, `X402_TESTNET_API_URL = 'https://x402.glassnode.tech'`, **and** a source-level `DEFAULT_API_URL = 'https://api.glassnode.com'` constant (today that literal only lives inside the Zod default). Change `apiUrl` to `z.string().url().optional()` (keep `.url()`, drop `.default()`) so "explicitly set" is detectable. Make `apiKey` `.optional()` and add object-level `.refine`s: (a) `apiKey` required when `x402` is falsy; (b) **`fetch` required when `x402` is `true`** (a plain fetch can't pay). | +| `src/glassnode-api.ts` | edit | Base-URL resolution (see below); change the `private apiKey` field type to `string \| undefined` and the `this.apiKey =` assignment accordingly. Request path, retries, and Zod validation otherwise unchanged. | +| `src/errors.ts` | edit | Add a friendly `402` message. | +| `src/index.ts` | unchanged | Deliberately does **not** re-export the helper, keeping the core entry `zod`-only. `X402_API_URL` and the `x402` config flag flow through the normal config exports (plain strings/booleans, no crypto). | ### Core API @@ -76,6 +92,10 @@ apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL) ``` - Fully backward-compatible: with neither `apiUrl` nor `x402`, the URL stays `https://api.glassnode.com`. +- **`fetch` is required when `x402: true`.** Enforced at construction via a Zod refine — without a + payment-capable fetch every call would just `402`. The error message points to `glassnode-api/x402`. +- **Testnet:** `x402: true` defaults to mainnet; target Base Sepolia by passing + `apiUrl: X402_TESTNET_API_URL` explicitly (an explicit `apiUrl` always wins over the preset). - **`apiKey` becomes optional under x402.** Glassnode's x402 endpoint is authorized by payment, not an API key (its own curl example sends no `api_key`). So: - Config validation: `apiKey` is required when `x402` is falsy (unchanged, backward-compatible) and @@ -85,7 +105,7 @@ apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL) with `x402` falsy compiles but throws at construction. (Verified: a Zod-4 object `.refine` still parses correctly and nothing in the repo relies on `.shape`/`.extend` of this schema.) - Request building: `request()` appends `api_key=` **only when an `apiKey` is present**. When absent - (x402-only usage) the param is omitted entirely. An API key *may* still be supplied alongside x402 if + (x402-only usage) the param is omitted entirely. An API key _may_ still be supplied alongside x402 if the caller has one; it is not forced. - No other changes to the request loop: the injected x402-wrapped `fetch` handles `402` transparently, below the library's existing `maxRetries` (429/5xx) loop and before Zod validation. @@ -96,9 +116,9 @@ apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL) import type { LocalAccount } from 'viem'; // type-only — must not trigger a runtime load type X402FetchOptions = { - account: LocalAccount; // viem account, e.g. privateKeyToAccount(pk) - maxPaymentPerCall?: string; // USDC decimal, default '0.06' - fetch?: typeof fetch; // base fetch to wrap, default globalThis.fetch + account: LocalAccount; // viem account, e.g. privateKeyToAccount(pk) + maxPaymentPerCall?: string; // USDC decimal, default '0.06' + fetch?: typeof fetch; // base fetch to wrap, default globalThis.fetch }; async function createX402Fetch(options: X402FetchOptions): Promise; @@ -106,21 +126,23 @@ async function createX402Fetch(options: X402FetchOptions): Promise Behavior: -1. Dynamically `import('x402-fetch')` and (only if needed for signer/units) `import('viem')`. If either - module is missing, throw a clear error: *"createX402Fetch requires the optional peer dependencies - `x402-fetch` and `viem`. Install them: `pnpm add x402-fetch viem`."* All value imports of the optional +1. Dynamically `import('@x402/fetch')` and (only if needed for signer/units) `import('viem')`. If either + module is missing, throw a clear error: _"createX402Fetch requires the optional peer dependencies + `@x402/fetch` and `viem`. Install them: `pnpm add @x402/fetch viem`."_ All value imports of the optional deps stay inside the async function; only `import type` references appear at module scope, so importing the subpath without the peers installed does not throw until `createX402Fetch` is actually called. -2. **Signer:** during implementation, check `x402-fetch@1`'s `.d.ts` for the accepted signer type. x402 - signs an off-chain EIP-3009 authorization (the facilitator submits on-chain), so the transport/chain are - largely inert. If `wrapFetchWithPayment` accepts a bare `LocalAccount`, pass `account` directly and do - **not** build a wallet client. Only if it strictly requires a `WalletClient`, construct a minimal Base - one: `createWalletClient({ account, chain: base, transport: http() })`. (Prefer the bare-account path.) -3. Convert `maxPaymentPerCall` → `maxValue: bigint` via `parseUnits(value, 6)` (USDC has 6 decimals); - e.g. `parseUnits('0.06', 6) === 60000n`. -4. Return `wrapFetchWithPayment(baseFetch, signer, maxValue)`. Its return type is `(input, init?) => - Promise`, which does **not** structurally include `fetch.preconnect`; cast the result - `as typeof fetch` so it satisfies the config's `FetchFn` under `strict`. +2. **Signer:** during implementation, check `@x402/fetch`'s `.d.ts` for the accepted signer type and the + exact wrapper name/signature (the v2 equivalent of `wrapFetchWithPayment`). x402 signs an off-chain + EIP-3009 authorization (the facilitator submits on-chain), so transport/chain are largely inert. If the + wrapper accepts a bare `LocalAccount`, pass `account` directly and do **not** build a wallet client; + only if it strictly requires a `WalletClient`, construct a minimal one for the target chain + (`base` mainnet / `baseSepolia` testnet). Prefer the bare-account path. +3. Convert `maxPaymentPerCall` → an atomic-unit cap via `parseUnits(value, 6)` (USDC has 6 decimals), + e.g. `parseUnits('0.06', 6) === 60000n`, and pass it to the v2 client's max-amount option (confirm the + option's exact name/type against `@x402/fetch`). +4. Return the wrapped fetch. Its return type is `(input, init?) => Promise`, which does **not** + structurally include `fetch.preconnect`; cast the result `as typeof fetch` so it satisfies the config's + `FetchFn` under `strict`. > The `walletClient` advanced override is intentionally **cut from v1** (YAGNI) — trivially re-addable if a > caller needs a custom transport/chain. @@ -149,10 +171,10 @@ const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); authorization on Base, and retries. The library only ever observes the resulting `200`, then validates with Zod as today. - **Composition with existing retries:** `maxRetries` handles 429/5xx and wraps the injected fetch; x402's - 402 handling lives *inside* that fetch. No conflict. + 402 handling lives _inside_ that fetch. No conflict. - **Misconfiguration guard:** if a `402` reaches the library's request loop (e.g. `x402: true` but a plain, unwrapped `fetch` was passed), map it to a friendly, **non-retryable** `GlassnodeApiError`: - *"Payment required — pass an x402-capable fetch (see `glassnode-api/x402`)."* Add `402` to the + _"Payment required — pass an x402-capable fetch (see `glassnode-api/x402`)."_ Add `402` to the `STATUS_MESSAGES` map. - **Over-cap / insufficient funds:** `wrapFetchWithPayment` throws before paying (or the payment fails); the error propagates with the client's message through the library's existing error handling. @@ -161,22 +183,22 @@ const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); - `package.json`: - `exports`: add a `"./x402"` subpath (`import` / `require` / `types`). - - `peerDependencies`: `x402-fetch` and `viem`, both marked `optional: true` in `peerDependenciesMeta`. - - `devDependencies`: add `x402-fetch` and `viem` so `src/x402.ts` type-checks and tests can run. + - `peerDependencies`: `@x402/fetch` and `viem`, both marked `optional: true` in `peerDependenciesMeta`. + - `devDependencies`: add `@x402/fetch` and `viem` so `src/x402.ts` type-checks and tests can run. - `files`: existing globs (`dist/*.js`, `dist/*.d.ts`) already capture the new subpath output. - Version: **minor** bump (new backward-compatible feature) + CHANGELOG entry. -- Node build (`tsc`): compiles `src/x402.ts` as part of `src/**/*` (NodeNext resolves viem/x402-fetch +- Node build (`tsc`): compiles `src/x402.ts` as part of `src/**/*` (NodeNext resolves viem/@x402/fetch subpath exports fine). - Browser build (`rollup`): **do not** add `src/x402.ts` to the inputs — the browser bundle stays crypto-free. **Required (release-pipeline risk):** `tsconfig.browser.json` uses `include: ["src/**/*"]` - with `moduleResolution: node` (classic), which **cannot** resolve viem/x402-fetch `exports`-map subpaths. + with `moduleResolution: node` (classic), which **cannot** resolve viem/@x402/fetch `exports`-map subpaths. So `src/x402.ts` must be added to `exclude` in `tsconfig.browser.json` (and, defensively, to the `@rollup/plugin-typescript` `exclude`), otherwise `build:browser` — and therefore `prepublishOnly` — fails to type-check. Add the x402 test file to the same exclude. - **Subpath is CJS-only by design.** With no `"type": "module"`, `tsc` emits `dist/x402.js` as CommonJS and there is no rollup ESM bundle for the subpath; `import`/`require` both resolve to it. ESM consumers get it via Node named-export interop, and its inner dynamic `import()` is the correct CJS→ESM bridge to the - ESM-only viem/x402-fetch. No tree-shakeable ESM is expected here. + ESM-only viem/@x402/fetch. No tree-shakeable ESM is expected here. ## Testing (Vitest) @@ -195,15 +217,25 @@ Core (no crypto, no network): Helper (mock the dynamic imports; no real crypto/network): -- Use `vi.mock('x402-fetch', factory)` / `vi.mock('viem', factory)`. `x402-fetch` and `viem` must be added +- Use `vi.mock('@x402/fetch', factory)` / `vi.mock('viem', factory)`. `@x402/fetch` and `viem` must be added as **devDependencies** so the module specifiers resolve at test time; the "missing deps" case is exercised by making the mock factory throw / reject (not by real absence). - Missing optional deps → clear install error (via a throwing mock). -- Default `maxPaymentPerCall` converts to `60000n` (`parseUnits('0.06', 6)`) and is passed as `maxValue`; - assert the concrete bigint. +- Default `maxPaymentPerCall` converts to `60000n` (`parseUnits('0.06', 6)`) and is passed to the client's + max-amount option; assert the concrete bigint. - Custom `maxPaymentPerCall` passed through. - Returns a callable `fetch`. +Testnet integration test (opt-in, real network — **not** in default CI): + +- A single end-to-end test against `https://x402.glassnode.tech` (Base Sepolia, `eip155:84532`) that makes + one real paid metric call and asserts a validated `200` response. +- Gated behind an env var (e.g. `X402_TESTNET_PRIVATE_KEY`): skip when unset so unit runs and CI stay + hermetic. Requires a Base-Sepolia wallet funded with test USDC. +- Add a `test:x402` script (or a tagged Vitest project) so it runs on demand, separate from `pnpm test`. +- Purpose: prove the `@x402/fetch` v2 wiring + `createX402Fetch` actually completes a payment against a + live x402 v2 endpoint before shipping. + ## Spend safety (scope of the guard) `maxPaymentPerCall` bounds a **single** request only — it does **not** cap cumulative spend across many @@ -222,6 +254,8 @@ will not model a cumulative budget in v1 (a caller can wrap their own counter). ## References +- x402 protocol (v2, x402-foundation): https://github.com/x402-foundation/x402 — client package `@x402/fetch` - x402 buyer quickstart: https://docs.cdp.coinbase.com/x402/quickstart-for-buyers -- `x402-fetch` (v1) `wrapFetchWithPayment(fetch, walletClient, maxValue?, selector?)` - Glassnode x402 skill: https://x402.glassnode.com/SKILL.md +- Live challenge shape (verified 2026-07-14): `payment-required` header, base64 JSON, `x402Version: 2`, + `accepts: [{ scheme: "exact", network: "eip155:8453" | "eip155:84532", asset: , amount: "10000" | "50000", ... }]` From 26e17088897e087ef8d99be6347e0af83855ed0b Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 22:28:16 +0200 Subject: [PATCH 04/25] Lock x402 client to @x402/fetch v2 + @x402/evm (Coinbase CDP-recommended) Coinbase's CDP buyer quickstart itself now installs @x402/fetch @x402/evm (scoped v2); the unscoped x402-fetch v1 is the deprecated predecessor and cannot parse the v2 challenge the Glassnode endpoint returns. So the "Coinbase client" and the foundation v2 client are the same package. - Helper builds the v2 client (registerExactEvmScheme + x402Client) and wrapFetchWithPayment(fetch, client); deps @x402/fetch + @x402/evm + viem - Spend cap: use v2 max-amount option if present, else a payment-requirements selector that throws over the cap - Removes the "pending confirmation" caveat on the client decision Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- .../specs/2026-07-14-x402-support-design.md | 69 ++++++++++--------- 1 file changed, 38 insertions(+), 31 deletions(-) diff --git a/docs/superpowers/specs/2026-07-14-x402-support-design.md b/docs/superpowers/specs/2026-07-14-x402-support-design.md index 3489605..9d88294 100644 --- a/docs/superpowers/specs/2026-07-14-x402-support-design.md +++ b/docs/superpowers/specs/2026-07-14-x402-support-design.md @@ -29,7 +29,7 @@ core package. x402 tooling is opt-in via a subpath export and optional peer depe - Let a Node.js caller make paid Glassnode calls through the existing `GlassnodeAPI` client. - Keep the core package's footprint unchanged: single runtime dependency (`zod`), browser-friendly. -- Make the crypto stack (`@x402/fetch`, `viem`) **optional** — installed only by users who make paid calls. +- Make the crypto stack (`@x402/fetch`, `@x402/evm`, `viem`) **optional** — installed only by users who make paid calls. - Provide a built-in spend guard with a safe default. ## Non-goals (YAGNI) @@ -49,13 +49,19 @@ core package. x402 tooling is opt-in via a subpath export and optional peer depe subpath; the core entry (`glassnode-api`) never imports crypto. Chosen over an all-in-core config (leaks crypto into the core module graph; constructors can't `await` a dynamic import) and over a separate companion package (extra release pipeline for a small helper). -2. **x402 client: `@x402/fetch` v2 (x402-foundation).** _Revised from the initial Coinbase `x402-fetch` v1 - pick — pending final confirmation._ The live Glassnode endpoints return **`x402Version: 2`** with a - header-based `payment-required` challenge and CAIP-2 networks (`eip155:8453`); the Coinbase **unscoped - `x402-fetch` v1** (x402Version 1, network `"base"`, body-based challenge) cannot parse this, so the - scoped **`@x402/fetch` v2** foundation client is required. Its exact wrapper API (the v2 equivalent of - `wrapFetchWithPayment` and its max-amount option) is to be confirmed against the installed package - during implementation. +2. **x402 client: `@x402/fetch` v2 + `@x402/evm` (Coinbase CDP-recommended).** The live Glassnode endpoints + return **`x402Version: 2`** (header-based `payment-required` challenge, CAIP-2 networks `eip155:8453`). + The **Coinbase CDP buyer quickstart itself now installs `@x402/fetch @x402/evm`** — the scoped v2 + packages are Coinbase's current recommendation; the unscoped `x402-fetch` v1 (x402Version 1, network + `"base"`) is the deprecated predecessor and cannot parse a v2 challenge. So "the Coinbase client" and + "the foundation v2 client" are the same thing (`@x402/fetch` v2). v2 setup requires registering the + exact-EVM scheme and building a client: + ```ts + import { wrapFetchWithPayment, x402Client } from '@x402/fetch'; + import { registerExactEvmScheme } from '@x402/evm/exact/client'; + ``` + Exact `x402Client` construction and the max-amount mechanism are confirmed against the installed + `@x402/fetch`/`@x402/evm` `.d.ts` during implementation (npm readmes are empty). 3. **Spend safety exposed with a default cap.** `maxPaymentPerCall` (USDC decimal string) defaults to `'0.06'` (just above the $0.05 metrics price), converted to atomic units (`parseUnits(value, 6)`) and passed to the client's max-amount guard. @@ -126,25 +132,25 @@ async function createX402Fetch(options: X402FetchOptions): Promise Behavior: -1. Dynamically `import('@x402/fetch')` and (only if needed for signer/units) `import('viem')`. If either - module is missing, throw a clear error: _"createX402Fetch requires the optional peer dependencies - `@x402/fetch` and `viem`. Install them: `pnpm add @x402/fetch viem`."_ All value imports of the optional - deps stay inside the async function; only `import type` references appear at module scope, so importing - the subpath without the peers installed does not throw until `createX402Fetch` is actually called. -2. **Signer:** during implementation, check `@x402/fetch`'s `.d.ts` for the accepted signer type and the - exact wrapper name/signature (the v2 equivalent of `wrapFetchWithPayment`). x402 signs an off-chain - EIP-3009 authorization (the facilitator submits on-chain), so transport/chain are largely inert. If the - wrapper accepts a bare `LocalAccount`, pass `account` directly and do **not** build a wallet client; - only if it strictly requires a `WalletClient`, construct a minimal one for the target chain - (`base` mainnet / `baseSepolia` testnet). Prefer the bare-account path. -3. Convert `maxPaymentPerCall` → an atomic-unit cap via `parseUnits(value, 6)` (USDC has 6 decimals), - e.g. `parseUnits('0.06', 6) === 60000n`, and pass it to the v2 client's max-amount option (confirm the - option's exact name/type against `@x402/fetch`). -4. Return the wrapped fetch. Its return type is `(input, init?) => Promise`, which does **not** - structurally include `fetch.preconnect`; cast the result `as typeof fetch` so it satisfies the config's - `FetchFn` under `strict`. - -> The `walletClient` advanced override is intentionally **cut from v1** (YAGNI) — trivially re-addable if a +1. Dynamically `import('@x402/fetch')`, `import('@x402/evm/exact/client')`, and (for signer/units) + `import('viem')`. If any is missing, throw a clear error: _"createX402Fetch requires the optional peer + dependencies `@x402/fetch`, `@x402/evm`, and `viem`. Install them: `pnpm add @x402/fetch @x402/evm +viem`."_ All value imports of the optional deps stay inside the async function; only `import type` + references appear at module scope, so importing the subpath without the peers installed does not throw + until `createX402Fetch` is actually called. +2. **Build the v2 client:** `registerExactEvmScheme(...)` then construct the `x402Client` (exact + construction confirmed against the installed `.d.ts`). x402 signs an off-chain EIP-3009 authorization + (the facilitator submits on-chain), so a bare `LocalAccount` should suffice — pass `account`; only build + a viem wallet client if the v2 client strictly requires one. +3. **Spend cap:** convert `maxPaymentPerCall` → atomic units via `parseUnits(value, 6)` (USDC, 6 decimals), + e.g. `parseUnits('0.06', 6) === 60000n`. Verify how v2 expresses the max: if `wrapFetchWithPayment`/the + client exposes a max-amount option, use it; if not, enforce it via a payment-requirements selector that + **throws when `accepts[].amount` exceeds the cap** before signing. Either way the cap must be honored. +4. Return `wrapFetchWithPayment(baseFetch, client)`. Its return type is `(input, init?) => Promise`, + which does **not** structurally include `fetch.preconnect`; cast the result `as typeof fetch` so it + satisfies the config's `FetchFn` under `strict`. + +> A `walletClient` advanced override is intentionally **cut from v1** (YAGNI) — trivially re-addable if a > caller needs a custom transport/chain. ### Usage (target ergonomics) @@ -183,8 +189,8 @@ const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); - `package.json`: - `exports`: add a `"./x402"` subpath (`import` / `require` / `types`). - - `peerDependencies`: `@x402/fetch` and `viem`, both marked `optional: true` in `peerDependenciesMeta`. - - `devDependencies`: add `@x402/fetch` and `viem` so `src/x402.ts` type-checks and tests can run. + - `peerDependencies`: `@x402/fetch`, `@x402/evm`, and `viem`, all marked `optional: true` in `peerDependenciesMeta`. + - `devDependencies`: add `@x402/fetch`, `@x402/evm`, and `viem` so `src/x402.ts` type-checks and tests can run. - `files`: existing globs (`dist/*.js`, `dist/*.d.ts`) already capture the new subpath output. - Version: **minor** bump (new backward-compatible feature) + CHANGELOG entry. - Node build (`tsc`): compiles `src/x402.ts` as part of `src/**/*` (NodeNext resolves viem/@x402/fetch @@ -254,8 +260,9 @@ will not model a cumulative budget in v1 (a caller can wrap their own counter). ## References -- x402 protocol (v2, x402-foundation): https://github.com/x402-foundation/x402 — client package `@x402/fetch` -- x402 buyer quickstart: https://docs.cdp.coinbase.com/x402/quickstart-for-buyers +- x402 protocol (v2, x402-foundation): https://github.com/x402-foundation/x402 — client `@x402/fetch` + `@x402/evm` +- Coinbase CDP buyer quickstart (recommends `@x402/fetch @x402/evm`): https://docs.cdp.coinbase.com/x402/quickstart-for-buyers +- Coinbase CDP x402 welcome: https://docs.cdp.coinbase.com/x402/welcome - Glassnode x402 skill: https://x402.glassnode.com/SKILL.md - Live challenge shape (verified 2026-07-14): `payment-required` header, base64 JSON, `x402Version: 2`, `accepts: [{ scheme: "exact", network: "eip155:8453" | "eip155:84532", asset: , amount: "10000" | "50000", ... }]` From dcb33c888e1a6c646cd245cbbef2ce1dc6e6a89b Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 22:40:12 +0200 Subject: [PATCH 05/25] Add x402 payment support implementation plan 7 TDD tasks: config preset, base-URL resolution, 402 error, packaging (optional peer deps + subpath export + browser exclude), createX402Fetch helper, opt-in testnet integration, docs. Helper source pre-verified with tsc 6.0.3 against real @x402/fetch + @x402/evm + viem types. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- .../plans/2026-07-14-x402-payment-support.md | 791 ++++++++++++++++++ 1 file changed, 791 insertions(+) create mode 100644 docs/superpowers/plans/2026-07-14-x402-payment-support.md diff --git a/docs/superpowers/plans/2026-07-14-x402-payment-support.md b/docs/superpowers/plans/2026-07-14-x402-payment-support.md new file mode 100644 index 0000000..1b8dfe1 --- /dev/null +++ b/docs/superpowers/plans/2026-07-14-x402-payment-support.md @@ -0,0 +1,791 @@ +# x402 Payment Support Implementation Plan + +> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking. + +**Goal:** Add opt-in, Node-first x402 payment support to `glassnode-api` so a caller can make paid Glassnode calls, without shipping crypto code in the core package. + +**Architecture:** The core `GlassnodeAPI` gains an `x402` boolean preset (switches the base URL to `https://x402.glassnode.com`) and already accepts an injected `fetch`. A new subpath export `glassnode-api/x402` provides `createX402Fetch()`, which dynamically imports `@x402/fetch` + `@x402/evm` (declared as optional peer dependencies) and returns a payment-capable fetch. The core entry never imports crypto. + +**Tech Stack:** TypeScript 6.0.3, Zod 4, Vitest, Rollup; x402 client `@x402/fetch` v2 + `@x402/evm` (Coinbase-CDP-recommended, x402 protocol v2), `viem` (type-only in the lib; the caller builds the account). + +## Global Constraints + +- **Node ≥ 18**; developed on Node 24; pnpm is the package manager. +- **TypeScript pinned to 6.x** (`^6.0.3`) — do NOT bump to 7 (breaks typescript-eslint). +- **Core package stays `zod`-only at runtime.** `@x402/fetch`, `@x402/evm`, `viem` are **optional peer dependencies** (+ devDependencies for build/test). Never import them from any file other than `src/x402.ts`, and only via dynamic `import()` / `import type`. +- **Verified pricing/protocol (do not re-derive):** endpoints return `x402Version: 2`, scheme `exact`, USDC atomic amounts (6 decimals): metadata `/v1/metadata/*` = `10000` ($0.01), metrics `/v1/metrics/*` = `50000` ($0.05). Mainnet network `eip155:8453` (`https://x402.glassnode.com`), testnet `eip155:84532` / Base Sepolia (`https://x402.glassnode.tech`). +- **Bulk is unsupported over x402** (`/bulk` 404s); no special handling — document only. +- Every commit runs the Husky pre-commit hook (eslint + prettier + vitest related). Keep lint/format clean. +- Follow existing code style (2-space, single quotes, semicolons; Prettier-enforced). + +--- + +## File structure + +| File | Responsibility | +| --- | --- | +| `src/types/config.ts` (modify) | Add `x402` flag + URL constants; make `apiUrl`/`apiKey` optional; add cross-field refines. | +| `src/glassnode-api.ts` (modify) | Resolve base URL from `x402`; omit `api_key` when no key. | +| `src/errors.ts` (modify) | Friendly `402` message. | +| `src/x402.ts` (new) | `createX402Fetch()` + pure helpers (`usdcDecimalToAtomic`, `createMaxAmountPolicy`). Only file that touches crypto. | +| `package.json` (modify) | `./x402` subpath export; optional peer + dev deps; version bump. | +| `tsconfig.browser.json` (modify) | Exclude `src/x402.ts` from the browser type program. | +| `test/x402.spec.ts` (new) | Unit tests for the helper (pure fns + real-deps smoke). | +| `test/x402.missing-deps.spec.ts` (new) | Missing-optional-deps error path (mocked import). | +| `test/x402.integration.spec.ts` (new) | Opt-in testnet integration (env-gated, self-skips). | +| `README.md` (modify) | "Paid calls with x402" section. | +| `CHANGELOG.md` (modify) | 0.8.0 entry. | + +Task order respects dependencies: config → client wiring → error → packaging/deps (so optional deps are installed) → helper → integration test → docs. + +--- + +### Task 1: Config — x402 flag, URL constants, optional apiUrl/apiKey, refines + +**Files:** +- Modify: `src/types/config.ts` +- Test: `test/config.spec.ts` (new) + +**Interfaces:** +- Produces: `DEFAULT_API_URL`, `X402_API_URL`, `X402_TESTNET_API_URL` (string consts); `GlassnodeConfigSchema` (now with `x402: boolean`, optional `apiKey`/`apiUrl`, and two refines); `GlassnodeConfig` type unchanged in name. + +- [ ] **Step 1: Write the failing test** + +Create `test/config.spec.ts`: + +```ts +import { describe, it, expect } from 'vitest'; +import { + GlassnodeConfigSchema, + DEFAULT_API_URL, + X402_API_URL, + X402_TESTNET_API_URL, +} from '../src/types/config'; + +describe('GlassnodeConfigSchema', () => { + it('exposes the URL constants', () => { + expect(DEFAULT_API_URL).toBe('https://api.glassnode.com'); + expect(X402_API_URL).toBe('https://x402.glassnode.com'); + expect(X402_TESTNET_API_URL).toBe('https://x402.glassnode.tech'); + }); + + it('requires apiKey when x402 is not enabled', () => { + expect(() => GlassnodeConfigSchema.parse({})).toThrow(/apiKey/); + expect(GlassnodeConfigSchema.parse({ apiKey: 'k' }).apiKey).toBe('k'); + }); + + it('allows omitting apiKey when x402 is enabled, but then requires fetch', () => { + const fetchFn = (async () => new Response()) as unknown as typeof fetch; + expect(() => GlassnodeConfigSchema.parse({ x402: true })).toThrow(/fetch/); + const parsed = GlassnodeConfigSchema.parse({ x402: true, fetch: fetchFn }); + expect(parsed.x402).toBe(true); + expect(parsed.apiKey).toBeUndefined(); + }); + + it('defaults x402 to false and apiUrl to undefined', () => { + const parsed = GlassnodeConfigSchema.parse({ apiKey: 'k' }); + expect(parsed.x402).toBe(false); + expect(parsed.apiUrl).toBeUndefined(); + }); +}); +``` + +- [ ] **Step 2: Run the test to verify it fails** + +Run: `pnpm exec vitest run test/config.spec.ts` +Expected: FAIL — `DEFAULT_API_URL`/`X402_API_URL`/`X402_TESTNET_API_URL` are not exported; `x402` not on schema. + +- [ ] **Step 3: Implement the config changes** + +Replace the contents of `src/types/config.ts` with: + +```ts +import { z } from 'zod'; + +/** + * Logger function type for API call logging + */ +export type Logger = (message: string, ...args: unknown[]) => void; + +/** + * Fetch function type matching the standard fetch API + */ +export type FetchFn = typeof fetch; + +/** Default free Glassnode API base URL. */ +export const DEFAULT_API_URL = 'https://api.glassnode.com'; +/** x402 (paid) Glassnode API base URL — Base mainnet. */ +export const X402_API_URL = 'https://x402.glassnode.com'; +/** x402 testnet base URL — Base Sepolia. */ +export const X402_TESTNET_API_URL = 'https://x402.glassnode.tech'; + +/** + * Zod schema for Glassnode API configuration + */ +export const GlassnodeConfigSchema = z + .object({ + /** API key for authentication. Required unless `x402` is enabled. */ + apiKey: z.string().min(1, 'API key is required').optional(), + + /** Base URL for the Glassnode API. An explicit value always wins over the `x402` preset. */ + apiUrl: z.string().url().optional(), + + /** Route requests through the x402 paid endpoint (`https://x402.glassnode.com`). */ + x402: z.boolean().default(false), + + /** Optional logger for API call debugging. */ + logger: z.function().optional(), + + /** Optional custom fetch function (e.g. an x402-wrapped fetch, or for testing). */ + fetch: z.function().optional(), + + /** Maximum number of retries for retryable errors (429 and 5xx). */ + maxRetries: z.number().int().nonnegative().default(0), + + /** Base delay in milliseconds between retries (doubles each attempt). */ + retryDelay: z.number().int().positive().default(1000), + }) + .refine((c) => c.x402 || (c.apiKey !== undefined && c.apiKey.length > 0), { + message: 'apiKey is required unless x402 is enabled', + path: ['apiKey'], + }) + .refine((c) => !c.x402 || c.fetch !== undefined, { + message: + 'fetch is required when x402 is enabled — pass an x402-capable fetch (see glassnode-api/x402)', + path: ['fetch'], + }); + +/** + * Configuration for the Glassnode API client + */ +export type GlassnodeConfig = z.input; +``` + +- [ ] **Step 4: Run the test to verify it passes** + +Run: `pnpm exec vitest run test/config.spec.ts` +Expected: PASS (4 tests). + +- [ ] **Step 5: Commit** + +```bash +git add src/types/config.ts test/config.spec.ts +git commit -m "feat(config): add x402 flag, url constants, conditional apiKey/fetch" +``` + +--- + +### Task 2: Base-URL resolution + omit api_key when absent + +**Files:** +- Modify: `src/glassnode-api.ts:18` (field type), `:29-39` (constructor), `:47-52` (request query building) +- Test: `test/glassnode-api.spec.ts` (append tests) + +**Interfaces:** +- Consumes: `X402_API_URL`, `DEFAULT_API_URL` from `./types/config`. +- Produces: `GlassnodeAPI` whose base URL is `apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL)`, and whose requests omit `api_key` when no key is set. + +- [ ] **Step 1: Write the failing tests** + +Append to `test/glassnode-api.spec.ts` (inside the top-level `describe('GlassnodeAPI', ...)`), and add `X402_API_URL` to the imports from `../src/types/config` if that file is imported — otherwise import inline in the test: + +```ts + describe('x402 mode', () => { + const okFetch = () => + vi.fn().mockResolvedValue({ + ok: true, + json: vi.fn().mockResolvedValue(mockMetricListResponse), + }); + + it('routes to the x402 host when x402 is true', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ x402: true, fetch: fetchFn }); + await api.getMetricList(); + expect(fetchFn).toHaveBeenCalledWith( + expect.stringContaining('https://x402.glassnode.com/v1/metadata/metrics') + ); + }); + + it('omits api_key when no apiKey is set', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ x402: true, fetch: fetchFn }); + await api.getMetricList(); + const calledUrl = fetchFn.mock.calls[0][0] as string; + expect(calledUrl).not.toContain('api_key'); + }); + + it('an explicit apiUrl overrides the x402 preset', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ + x402: true, + apiUrl: 'https://x402.glassnode.tech', + fetch: fetchFn, + }); + await api.getMetricList(); + expect(fetchFn).toHaveBeenCalledWith( + expect.stringContaining('https://x402.glassnode.tech/v1/metadata/metrics') + ); + }); + }); +``` + +- [ ] **Step 2: Run the tests to verify they fail** + +Run: `pnpm exec vitest run test/glassnode-api.spec.ts -t "x402 mode"` +Expected: FAIL — base URL is still `https://api.glassnode.com` and `api_key=` is appended. + +- [ ] **Step 3: Implement the client changes** + +In `src/glassnode-api.ts`: + +3a. Update the import at the top (add the two constants): + +```ts +import { + GlassnodeConfig, + GlassnodeConfigSchema, + Logger, + FetchFn, + DEFAULT_API_URL, + X402_API_URL, +} from './types/config'; +``` + +3b. Change the field declaration (was `private apiKey: string;`): + +```ts + private apiKey: string | undefined; +``` + +3c. In the constructor, replace the `this.apiKey` / `this.apiUrl` assignments: + +```ts + this.apiKey = validatedConfig.apiKey; + this.apiUrl = + validatedConfig.apiUrl ?? (validatedConfig.x402 ? X402_API_URL : DEFAULT_API_URL); +``` + +3d. In `request()`, replace the `queryParams` construction: + +```ts + const queryParams = new URLSearchParams({ + ...params, + ...(this.apiKey ? { api_key: this.apiKey } : {}), + }); +``` + +- [ ] **Step 4: Run the tests to verify they pass** + +Run: `pnpm exec vitest run test/glassnode-api.spec.ts` +Expected: PASS (all existing tests + the 3 new x402 tests). + +- [ ] **Step 5: Commit** + +```bash +git add src/glassnode-api.ts test/glassnode-api.spec.ts +git commit -m "feat(client): resolve x402 base url and omit api_key when absent" +``` + +--- + +### Task 3: Friendly 402 error message + +**Files:** +- Modify: `src/errors.ts:1-7` +- Test: `test/glassnode-api.spec.ts` (append) + +**Interfaces:** +- Produces: `GlassnodeApiError` with a helpful `402` message; `isRetryable` stays `false` for `402`. + +- [ ] **Step 1: Write the failing tests** + +Append inside `describe('error handling', ...)` in `test/glassnode-api.spec.ts`: + +```ts + it('gives a helpful 402 message and marks it non-retryable', () => { + const err = new GlassnodeApiError(402, 'Payment Required'); + expect(err.message).toContain('Payment required'); + expect(err.message).toContain('glassnode-api/x402'); + expect(err.isRetryable).toBe(false); + }); +``` + +- [ ] **Step 2: Run the test to verify it fails** + +Run: `pnpm exec vitest run test/glassnode-api.spec.ts -t "402 message"` +Expected: FAIL — message is the generic status text, not the friendly copy. + +- [ ] **Step 3: Implement** + +In `src/errors.ts`, add the `402` entry to `STATUS_MESSAGES`: + +```ts +const STATUS_MESSAGES: Record = { + 400: 'Bad request', + 401: 'Invalid or missing API key', + 402: 'Payment required — pass an x402-capable fetch (see glassnode-api/x402)', + 403: 'Access forbidden — check your API tier', + 404: 'Endpoint or metric not found', + 429: 'Rate limit exceeded', +}; +``` + +- [ ] **Step 4: Run the test to verify it passes** + +Run: `pnpm exec vitest run test/glassnode-api.spec.ts -t "402 message"` +Expected: PASS. + +- [ ] **Step 5: Commit** + +```bash +git add src/errors.ts test/glassnode-api.spec.ts +git commit -m "feat(errors): friendly 402 payment-required message" +``` + +--- + +### Task 4: Packaging — optional deps, subpath export, browser exclude + +**Files:** +- Modify: `package.json` (exports, peerDependencies, peerDependenciesMeta, devDependencies) +- Modify: `tsconfig.browser.json` (exclude) + +**Interfaces:** +- Produces: the `@x402/fetch`, `@x402/evm`, `viem` module specifiers resolvable at build/test time; the `glassnode-api/x402` subpath mapped to `dist/x402.js`. Task 5 depends on this. + +- [ ] **Step 1: Add the optional deps as devDependencies (installs them)** + +Run: + +```bash +pnpm add -D --config.minimumReleaseAge=0 @x402/fetch@^2.18.0 @x402/evm@^2.18.0 viem@^2.48.11 +``` + +Expected: `@x402/fetch`, `@x402/evm`, `viem` added under `devDependencies`; `pnpm-lock.yaml` updated. + +- [ ] **Step 2: Declare them as optional peer dependencies** + +Edit `package.json` — add these two top-level keys (place after `"dependencies"`): + +```json + "peerDependencies": { + "@x402/fetch": ">=2.18.0", + "@x402/evm": ">=2.18.0", + "viem": "^2.48.11" + }, + "peerDependenciesMeta": { + "@x402/fetch": { "optional": true }, + "@x402/evm": { "optional": true }, + "viem": { "optional": true } + }, +``` + +- [ ] **Step 3: Add the subpath export** + +In `package.json`, change the `"exports"` block to add the `./x402` entry: + +```json + "exports": { + ".": { + "import": "./dist/glassnode-api.esm.min.js", + "require": "./dist/index.js", + "types": "./dist/index.d.ts" + }, + "./x402": { + "types": "./dist/x402.d.ts", + "import": "./dist/x402.js", + "require": "./dist/x402.js" + } + }, +``` + +- [ ] **Step 4: Exclude the crypto file from the browser type program** + +In `tsconfig.browser.json`, add `"src/x402.ts"` to `exclude`: + +```json + "exclude": ["node_modules", "dist", "test", "examples", "src/x402.ts"] +``` + +- [ ] **Step 5: Verify install + existing build/tests still pass** + +Run: `pnpm install --config.minimumReleaseAge=0 && pnpm run build && pnpm run build:browser && pnpm test` +Expected: all succeed; no `dist/x402.*` yet (created in Task 5), browser bundle unchanged. + +> **Fallback:** if a later `pnpm run build:browser` (Task 5 Step 7) still tries to type-check `src/x402.ts` and errors on `@x402/*`/`viem` resolution, also pass an explicit exclude to the Rollup TypeScript plugin in `rollup.config.mjs`: change `typescript({ tsconfig: './tsconfig.browser.json' })` to `typescript({ tsconfig: './tsconfig.browser.json', exclude: ['src/x402.ts'] })`. + +- [ ] **Step 6: Commit** + +```bash +git add package.json pnpm-lock.yaml tsconfig.browser.json +git commit -m "chore(x402): optional peer deps, ./x402 subpath export, browser exclude" +``` + +--- + +### Task 5: `createX402Fetch` helper + +**Files:** +- Create: `src/x402.ts` +- Test: `test/x402.spec.ts`, `test/x402.missing-deps.spec.ts` + +**Interfaces:** +- Consumes: `@x402/fetch` (`wrapFetchWithPayment`, `x402Client`), `@x402/evm` (`ExactEvmScheme`), `viem` (`LocalAccount` type only). +- Produces: + - `usdcDecimalToAtomic(value: string): bigint` + - `createMaxAmountPolicy(maxAtomic: bigint): (x402Version: number, requirements: { amount: string }[]) => { amount: string }[]` + - `createX402Fetch(options: { account: LocalAccount; maxPaymentPerCall?: string; fetch?: typeof fetch }): Promise` + +- [ ] **Step 1: Write the failing unit tests (pure fns + smoke)** + +Create `test/x402.spec.ts`: + +```ts +import { describe, it, expect } from 'vitest'; +import { usdcDecimalToAtomic, createMaxAmountPolicy, createX402Fetch } from '../src/x402'; + +describe('usdcDecimalToAtomic', () => { + it('converts USDC decimals to 6-decimal atomic units', () => { + expect(usdcDecimalToAtomic('0.06')).toBe(60000n); + expect(usdcDecimalToAtomic('0.05')).toBe(50000n); + expect(usdcDecimalToAtomic('0.01')).toBe(10000n); + expect(usdcDecimalToAtomic('1')).toBe(1000000n); + expect(usdcDecimalToAtomic('0')).toBe(0n); + }); + + it('truncates beyond 6 decimals and rejects bad input', () => { + expect(usdcDecimalToAtomic('0.1234567')).toBe(123456n); + expect(() => usdcDecimalToAtomic('abc')).toThrow(/Invalid USDC amount/); + expect(() => usdcDecimalToAtomic('-1')).toThrow(/Invalid USDC amount/); + }); +}); + +describe('createMaxAmountPolicy', () => { + it('keeps only requirements at or below the cap', () => { + const policy = createMaxAmountPolicy(60000n); + const reqs = [{ amount: '50000' }, { amount: '60000' }, { amount: '70000' }]; + expect(policy(2, reqs)).toEqual([{ amount: '50000' }, { amount: '60000' }]); + }); +}); + +describe('createX402Fetch', () => { + it('returns a callable fetch using the real x402 client', async () => { + const account = { + address: '0x0000000000000000000000000000000000000001' as const, + signTypedData: async () => '0x' as const, + }; + const wrapped = await createX402Fetch({ + // eslint-disable-next-line @typescript-eslint/no-explicit-any + account: account as any, + maxPaymentPerCall: '0.06', + }); + expect(typeof wrapped).toBe('function'); + }); +}); +``` + +- [ ] **Step 2: Run to verify it fails** + +Run: `pnpm exec vitest run test/x402.spec.ts` +Expected: FAIL — `../src/x402` does not exist. + +- [ ] **Step 3: Implement `src/x402.ts`** + +Create `src/x402.ts` (this exact source is type-checked against the installed `@x402/*` and `viem` types under TS 6.0.3): + +```ts +import type { LocalAccount } from 'viem'; + +/** Options for {@link createX402Fetch}. */ +export interface X402FetchOptions { + /** viem account used to sign payment authorizations (e.g. `privateKeyToAccount(pk)`). */ + account: LocalAccount; + /** Per-call spend ceiling in USDC (decimal string). Default `'0.06'` (just above the $0.05 metric price). */ + maxPaymentPerCall?: string; + /** Base fetch to wrap. Default `globalThis.fetch`. */ + fetch?: typeof fetch; +} + +const DEFAULT_MAX_PAYMENT_PER_CALL = '0.06'; +const USDC_DECIMALS = 6; +// Base mainnet + Base Sepolia (CAIP-2). Registering both lets one wrapped fetch serve either host. +const X402_NETWORKS = ['eip155:8453', 'eip155:84532'] as const; + +/** Convert a USDC decimal string (e.g. `'0.06'`) to atomic units (6 decimals). Truncates extra decimals. */ +export function usdcDecimalToAtomic(value: string): bigint { + if (!/^\d+(\.\d+)?$/.test(value)) { + throw new Error(`Invalid USDC amount: "${value}"`); + } + const [whole, frac = ''] = value.split('.'); + const fracPadded = (frac + '0'.repeat(USDC_DECIMALS)).slice(0, USDC_DECIMALS); + return BigInt(whole) * 10n ** BigInt(USDC_DECIMALS) + BigInt(fracPadded || '0'); +} + +/** Build a payment policy that rejects any payment requirement above `maxAtomic` (atomic USDC units). */ +export function createMaxAmountPolicy(maxAtomic: bigint) { + return (_x402Version: number, requirements: { amount: string }[]): { amount: string }[] => + requirements.filter((r) => BigInt(r.amount) <= maxAtomic); +} + +/** + * Create an x402-capable `fetch` for paid Glassnode calls (Node-first). + * + * Dynamically loads the optional peer deps `@x402/fetch` + `@x402/evm`; pass the result as the + * `fetch` option of `GlassnodeAPI` together with `x402: true`. + */ +export async function createX402Fetch(options: X402FetchOptions): Promise { + const { + account, + maxPaymentPerCall = DEFAULT_MAX_PAYMENT_PER_CALL, + fetch: baseFetch = globalThis.fetch, + } = options; + + const maxAtomic = usdcDecimalToAtomic(maxPaymentPerCall); + + const [x402fetchMod, evmMod] = await Promise.all([ + import('@x402/fetch'), + import('@x402/evm'), + ]).catch((err) => { + throw new Error( + "createX402Fetch requires the optional peer dependencies '@x402/fetch', '@x402/evm', and 'viem'. Install them: pnpm add @x402/fetch @x402/evm viem", + { cause: err }, + ); + }); + const { wrapFetchWithPayment, x402Client } = x402fetchMod; + const { ExactEvmScheme } = evmMod; + + let client = new x402Client(); + for (const network of X402_NETWORKS) { + client = client.register( + network, + new ExactEvmScheme(account as ConstructorParameters[0]), + ); + } + client = client.registerPolicy( + createMaxAmountPolicy(maxAtomic) as unknown as Parameters[0], + ); + + return wrapFetchWithPayment(baseFetch, client) as typeof fetch; +} +``` + +- [ ] **Step 4: Run the unit tests to verify they pass** + +Run: `pnpm exec vitest run test/x402.spec.ts` +Expected: PASS. + +- [ ] **Step 5: Write the missing-deps test** + +Create `test/x402.missing-deps.spec.ts` (module-level mock makes `@x402/evm` fail to import): + +```ts +import { describe, it, expect, vi } from 'vitest'; + +// Simulate the optional peer dep being absent: importing it throws. +vi.mock('@x402/evm', () => { + throw new Error('Cannot find package @x402/evm'); +}); + +describe('createX402Fetch without optional deps', () => { + it('throws a clear install error', async () => { + const { createX402Fetch } = await import('../src/x402'); + const account = { + address: '0x0000000000000000000000000000000000000001' as const, + signTypedData: async () => '0x' as const, + }; + await expect( + // eslint-disable-next-line @typescript-eslint/no-explicit-any + createX402Fetch({ account: account as any }), + ).rejects.toThrow(/optional peer dependencies/); + }); +}); +``` + +- [ ] **Step 6: Run the missing-deps test** + +Run: `pnpm exec vitest run test/x402.missing-deps.spec.ts` +Expected: PASS — the rejection message contains "optional peer dependencies". + +- [ ] **Step 7: Verify the whole build + full suite + browser build** + +Run: `pnpm run lint && pnpm run build && pnpm run build:browser && pnpm test` +Expected: all pass. `dist/x402.js` + `dist/x402.d.ts` produced by `tsc`; the browser bundle is unchanged and does NOT include x402 (excluded). + +- [ ] **Step 8: Commit** + +```bash +git add src/x402.ts test/x402.spec.ts test/x402.missing-deps.spec.ts +git commit -m "feat(x402): createX402Fetch helper (subpath glassnode-api/x402)" +``` + +--- + +### Task 6: Opt-in testnet integration test + +**Files:** +- Create: `test/x402.integration.spec.ts` +- Modify: `package.json` (add `test:x402` script) + +**Interfaces:** +- Consumes: `createX402Fetch`, `GlassnodeAPI`, `X402_TESTNET_API_URL`, `viem/accounts.privateKeyToAccount`. +- Produces: an env-gated E2E test that self-skips without `X402_TESTNET_PRIVATE_KEY` (so `pnpm test`/CI stay hermetic). + +- [ ] **Step 1: Write the integration test** + +Create `test/x402.integration.spec.ts`: + +```ts +import { describe, it, expect } from 'vitest'; +import { privateKeyToAccount } from 'viem/accounts'; +import { GlassnodeAPI } from '../src/glassnode-api'; +import { X402_TESTNET_API_URL } from '../src/types/config'; +import { createX402Fetch } from '../src/x402'; + +const KEY = process.env.X402_TESTNET_PRIVATE_KEY; + +// Requires a Base-Sepolia wallet funded with test USDC. Skipped unless the key is provided. +describe.skipIf(!KEY)('x402 testnet integration', () => { + it('pays for a metric on the testnet endpoint and returns validated data', async () => { + const account = privateKeyToAccount(KEY as `0x${string}`); + const api = new GlassnodeAPI({ + x402: true, + apiUrl: X402_TESTNET_API_URL, + fetch: await createX402Fetch({ account, maxPaymentPerCall: '0.06' }), + }); + + const data = await api.callMetric<{ t: number; v: number }[]>('/market/mvrv', { + a: 'BTC', + i: '24h', + }); + + expect(Array.isArray(data)).toBe(true); + expect(data.length).toBeGreaterThan(0); + expect(typeof data[0].t).toBe('number'); + expect(typeof data[0].v).toBe('number'); + }, 60_000); +}); +``` + +- [ ] **Step 2: Add the `test:x402` script** + +In `package.json` `"scripts"`, add: + +```json + "test:x402": "vitest run test/x402.integration.spec.ts", +``` + +- [ ] **Step 3: Verify it skips cleanly without the env var** + +Run: `pnpm exec vitest run test/x402.integration.spec.ts` +Expected: PASS with the suite **skipped** (0 failures; the describe is skipped because `X402_TESTNET_PRIVATE_KEY` is unset). + +- [ ] **Step 4: Commit** + +```bash +git add test/x402.integration.spec.ts package.json +git commit -m "test(x402): opt-in testnet integration test + test:x402 script" +``` + +--- + +### Task 7: Docs + version bump + +**Files:** +- Modify: `README.md`, `CHANGELOG.md`, `package.json` (version) + +**Interfaces:** +- Produces: user-facing docs for the feature; `0.8.0` release entry. + +- [ ] **Step 1: Add the README section** + +In `README.md`, add a `## Paid calls with x402` entry to the Table of Contents (after `[Bulk Metrics](#bulk-metrics)`), and insert this section immediately before `## Browser`: + +````markdown +## Paid calls with x402 + +Glassnode also serves a **paid, per-call API over the [x402 protocol](https://x402.org)** at +`https://x402.glassnode.com` — no API key required, you pay per request in USDC on Base +($0.01/metadata call, $0.05/metric call). This is **Node-first** and opt-in: the crypto stack +(`@x402/fetch`, `@x402/evm`, `viem`) is an **optional peer dependency**, installed only if you use it. + +```bash +pnpm add glassnode-api @x402/fetch @x402/evm viem +``` + +```typescript +import { GlassnodeAPI } from 'glassnode-api'; +import { createX402Fetch } from 'glassnode-api/x402'; +import { privateKeyToAccount } from 'viem/accounts'; + +const account = privateKeyToAccount(process.env.PRIVATE_KEY as `0x${string}`); + +const api = new GlassnodeAPI({ + x402: true, // → https://x402.glassnode.com + fetch: await createX402Fetch({ + account, + maxPaymentPerCall: '0.06', // USDC per-call ceiling (default) + }), +}); + +// Pays $0.05 USDC on Base, transparently: +const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); +``` + +**`createX402Fetch(options)`** + +| Option | Type | Default | Description | +| ------------------- | ------------- | -------------------- | ---------------------------------------------------- | +| `account` | `LocalAccount`| — (**required**) | viem account that signs payments | +| `maxPaymentPerCall` | `string` | `'0.06'` | Per-call USDC spend ceiling | +| `fetch` | `typeof fetch`| `globalThis.fetch` | Base fetch to wrap | + +> **Spend safety:** `maxPaymentPerCall` caps a **single** request — it is **not** a cumulative budget, so +> an agent loop can still spend within that ceiling repeatedly. Use a **dedicated, funded-but-limited** +> wallet (never your primary key), and load the key from the environment — never hardcode it. + +**Notes** +- **Bulk metrics are not available over x402** — `callBulkMetric()` only works against the free + `api.glassnode.com`. +- **Testnet:** target Base Sepolia by passing `apiUrl: 'https://x402.glassnode.tech'`. +- **Browser** signing is not supported yet (planned). +```` + +- [ ] **Step 2: Add the CHANGELOG entry** + +In `CHANGELOG.md`, add at the top (below `# Changelog`): + +```markdown +## 0.8.0 + +- Add opt-in, Node-first **x402 payment support**: `x402: true` config preset (routes to + `https://x402.glassnode.com`) and a new `glassnode-api/x402` subpath export with + `createX402Fetch({ account, maxPaymentPerCall })`. The crypto stack (`@x402/fetch`, `@x402/evm`, + `viem`) is an optional peer dependency; the core package stays `zod`-only. +- `apiKey` is now optional when `x402` is enabled; `fetch` is required in that mode. +- Add a friendly `402` error message. Bulk metrics remain free-API only (unsupported over x402). +``` + +- [ ] **Step 3: Bump the version to 0.8.0** + +Edit `package.json`: change `"version"` to `"0.8.0"`. + +- [ ] **Step 4: Verify the full pipeline once more** + +Run: `pnpm run lint && pnpm test && pnpm run build && pnpm run build:browser` +Expected: all pass. + +- [ ] **Step 5: Commit** + +```bash +git add README.md CHANGELOG.md package.json +git commit -m "docs(x402): README section, CHANGELOG, bump to 0.8.0" +``` + +--- + +## Self-review notes (for the implementer) + +- **Spec coverage:** config preset (T1), URL resolution + api_key omission (T2), 402 error (T3), packaging/optional-deps/browser-exclude (T4), helper + spend cap + missing-deps error (T5), testnet integration (T6), docs/bulk-limitation/version (T7). All spec sections map to a task. +- **Type names are consistent across tasks:** `createX402Fetch`, `usdcDecimalToAtomic`, `createMaxAmountPolicy`, `X402_API_URL`, `X402_TESTNET_API_URL`, `DEFAULT_API_URL`. +- **Verified before writing:** the `src/x402.ts` source in Task 5 was type-checked against the real installed `@x402/fetch@2.18`, `@x402/evm@2.18`, and `viem` `.d.ts` under `tsc 6.0.3` (clean), and the client chain (`new x402Client().register(...).registerPolicy(...)` → `wrapFetchWithPayment`) was smoke-run in Node. +- **If `pnpm add` is blocked by the local `.npmrc` release-age quarantine**, the `--config.minimumReleaseAge=0` flag (already in the commands) overrides it for that install. From daf220d71b458df432f34adfc20f1a942b2845d5 Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 23:10:07 +0200 Subject: [PATCH 06/25] Fix x402 plan: merge config + client task (green-at-commit) Opus plan review found one blocker: Task 1 dropped the apiUrl Zod default but deferred the constructor's base-URL resolution to Task 2, so the existing default-URL test would fail under the Husky vitest-related pre-commit hook and block the Task 1 commit. Merge config schema + constructor/request changes into a single Task 1; renumber the rest (now 6 tasks). All other review checks passed (Zod, tests, packaging, lint). Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- .../plans/2026-07-14-x402-payment-support.md | 256 +++++++++--------- 1 file changed, 121 insertions(+), 135 deletions(-) diff --git a/docs/superpowers/plans/2026-07-14-x402-payment-support.md b/docs/superpowers/plans/2026-07-14-x402-payment-support.md index 1b8dfe1..55f1d1f 100644 --- a/docs/superpowers/plans/2026-07-14-x402-payment-support.md +++ b/docs/superpowers/plans/2026-07-14-x402-payment-support.md @@ -22,34 +22,39 @@ ## File structure -| File | Responsibility | -| --- | --- | -| `src/types/config.ts` (modify) | Add `x402` flag + URL constants; make `apiUrl`/`apiKey` optional; add cross-field refines. | -| `src/glassnode-api.ts` (modify) | Resolve base URL from `x402`; omit `api_key` when no key. | -| `src/errors.ts` (modify) | Friendly `402` message. | -| `src/x402.ts` (new) | `createX402Fetch()` + pure helpers (`usdcDecimalToAtomic`, `createMaxAmountPolicy`). Only file that touches crypto. | -| `package.json` (modify) | `./x402` subpath export; optional peer + dev deps; version bump. | -| `tsconfig.browser.json` (modify) | Exclude `src/x402.ts` from the browser type program. | -| `test/x402.spec.ts` (new) | Unit tests for the helper (pure fns + real-deps smoke). | -| `test/x402.missing-deps.spec.ts` (new) | Missing-optional-deps error path (mocked import). | -| `test/x402.integration.spec.ts` (new) | Opt-in testnet integration (env-gated, self-skips). | -| `README.md` (modify) | "Paid calls with x402" section. | -| `CHANGELOG.md` (modify) | 0.8.0 entry. | +| File | Responsibility | +| -------------------------------------- | ------------------------------------------------------------------------------------------------------------------- | +| `src/types/config.ts` (modify) | Add `x402` flag + URL constants; make `apiUrl`/`apiKey` optional; add cross-field refines. | +| `src/glassnode-api.ts` (modify) | Resolve base URL from `x402`; omit `api_key` when no key. | +| `src/errors.ts` (modify) | Friendly `402` message. | +| `src/x402.ts` (new) | `createX402Fetch()` + pure helpers (`usdcDecimalToAtomic`, `createMaxAmountPolicy`). Only file that touches crypto. | +| `package.json` (modify) | `./x402` subpath export; optional peer + dev deps; version bump. | +| `tsconfig.browser.json` (modify) | Exclude `src/x402.ts` from the browser type program. | +| `test/x402.spec.ts` (new) | Unit tests for the helper (pure fns + real-deps smoke). | +| `test/x402.missing-deps.spec.ts` (new) | Missing-optional-deps error path (mocked import). | +| `test/x402.integration.spec.ts` (new) | Opt-in testnet integration (env-gated, self-skips). | +| `README.md` (modify) | "Paid calls with x402" section. | +| `CHANGELOG.md` (modify) | 0.8.0 entry. | Task order respects dependencies: config → client wiring → error → packaging/deps (so optional deps are installed) → helper → integration test → docs. --- -### Task 1: Config — x402 flag, URL constants, optional apiUrl/apiKey, refines +### Task 1: Config schema + client base-URL resolution **Files:** + - Modify: `src/types/config.ts` -- Test: `test/config.spec.ts` (new) +- Modify: `src/glassnode-api.ts` (imports; `apiKey` field type; constructor; `request()` query) +- Test: `test/config.spec.ts` (new), `test/glassnode-api.spec.ts` (append) + +> **Done as one task/commit on purpose.** Dropping the Zod `apiUrl` default without also moving base-URL resolution into the constructor breaks the existing `should create an instance with default API URL` test (`test/glassnode-api.spec.ts`), and the Husky pre-commit hook (`vitest related`) would then block a partial commit. Config + constructor land together so the tree is green at the commit boundary. **Interfaces:** -- Produces: `DEFAULT_API_URL`, `X402_API_URL`, `X402_TESTNET_API_URL` (string consts); `GlassnodeConfigSchema` (now with `x402: boolean`, optional `apiKey`/`apiUrl`, and two refines); `GlassnodeConfig` type unchanged in name. -- [ ] **Step 1: Write the failing test** +- Produces: `DEFAULT_API_URL`, `X402_API_URL`, `X402_TESTNET_API_URL` (string consts); `GlassnodeConfigSchema` (now with `x402: boolean`, optional `apiKey`/`apiUrl`, two refines); `GlassnodeConfig` type (name unchanged); `GlassnodeAPI` whose base URL is `apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL)` and which omits `api_key` when no key is set. + +- [ ] **Step 1: Write the failing config test** Create `test/config.spec.ts`: @@ -90,12 +95,56 @@ describe('GlassnodeConfigSchema', () => { }); ``` -- [ ] **Step 2: Run the test to verify it fails** +- [ ] **Step 2: Write the failing x402-mode client tests** + +Append to `test/glassnode-api.spec.ts`, inside the top-level `describe('GlassnodeAPI', ...)`: + +```ts +describe('x402 mode', () => { + const okFetch = () => + vi.fn().mockResolvedValue({ + ok: true, + json: vi.fn().mockResolvedValue(mockMetricListResponse), + }); + + it('routes to the x402 host when x402 is true', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ x402: true, fetch: fetchFn }); + await api.getMetricList(); + expect(fetchFn).toHaveBeenCalledWith( + expect.stringContaining('https://x402.glassnode.com/v1/metadata/metrics') + ); + }); + + it('omits api_key when no apiKey is set', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ x402: true, fetch: fetchFn }); + await api.getMetricList(); + const calledUrl = fetchFn.mock.calls[0][0] as string; + expect(calledUrl).not.toContain('api_key'); + }); + + it('an explicit apiUrl overrides the x402 preset', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ + x402: true, + apiUrl: 'https://x402.glassnode.tech', + fetch: fetchFn, + }); + await api.getMetricList(); + expect(fetchFn).toHaveBeenCalledWith( + expect.stringContaining('https://x402.glassnode.tech/v1/metadata/metrics') + ); + }); +}); +``` + +- [ ] **Step 3: Run both to verify they fail** -Run: `pnpm exec vitest run test/config.spec.ts` -Expected: FAIL — `DEFAULT_API_URL`/`X402_API_URL`/`X402_TESTNET_API_URL` are not exported; `x402` not on schema. +Run: `pnpm exec vitest run test/config.spec.ts test/glassnode-api.spec.ts` +Expected: FAIL — `config.spec.ts` can't import the new constants; the x402-mode tests still hit `https://api.glassnode.com` and append `api_key`. -- [ ] **Step 3: Implement the config changes** +- [ ] **Step 4: Implement the config schema** Replace the contents of `src/types/config.ts` with: @@ -161,84 +210,11 @@ export const GlassnodeConfigSchema = z export type GlassnodeConfig = z.input; ``` -- [ ] **Step 4: Run the test to verify it passes** - -Run: `pnpm exec vitest run test/config.spec.ts` -Expected: PASS (4 tests). - -- [ ] **Step 5: Commit** - -```bash -git add src/types/config.ts test/config.spec.ts -git commit -m "feat(config): add x402 flag, url constants, conditional apiKey/fetch" -``` - ---- - -### Task 2: Base-URL resolution + omit api_key when absent - -**Files:** -- Modify: `src/glassnode-api.ts:18` (field type), `:29-39` (constructor), `:47-52` (request query building) -- Test: `test/glassnode-api.spec.ts` (append tests) - -**Interfaces:** -- Consumes: `X402_API_URL`, `DEFAULT_API_URL` from `./types/config`. -- Produces: `GlassnodeAPI` whose base URL is `apiUrl ?? (x402 ? X402_API_URL : DEFAULT_API_URL)`, and whose requests omit `api_key` when no key is set. - -- [ ] **Step 1: Write the failing tests** - -Append to `test/glassnode-api.spec.ts` (inside the top-level `describe('GlassnodeAPI', ...)`), and add `X402_API_URL` to the imports from `../src/types/config` if that file is imported — otherwise import inline in the test: - -```ts - describe('x402 mode', () => { - const okFetch = () => - vi.fn().mockResolvedValue({ - ok: true, - json: vi.fn().mockResolvedValue(mockMetricListResponse), - }); - - it('routes to the x402 host when x402 is true', async () => { - const fetchFn = okFetch(); - const api = new GlassnodeAPI({ x402: true, fetch: fetchFn }); - await api.getMetricList(); - expect(fetchFn).toHaveBeenCalledWith( - expect.stringContaining('https://x402.glassnode.com/v1/metadata/metrics') - ); - }); - - it('omits api_key when no apiKey is set', async () => { - const fetchFn = okFetch(); - const api = new GlassnodeAPI({ x402: true, fetch: fetchFn }); - await api.getMetricList(); - const calledUrl = fetchFn.mock.calls[0][0] as string; - expect(calledUrl).not.toContain('api_key'); - }); - - it('an explicit apiUrl overrides the x402 preset', async () => { - const fetchFn = okFetch(); - const api = new GlassnodeAPI({ - x402: true, - apiUrl: 'https://x402.glassnode.tech', - fetch: fetchFn, - }); - await api.getMetricList(); - expect(fetchFn).toHaveBeenCalledWith( - expect.stringContaining('https://x402.glassnode.tech/v1/metadata/metrics') - ); - }); - }); -``` - -- [ ] **Step 2: Run the tests to verify they fail** - -Run: `pnpm exec vitest run test/glassnode-api.spec.ts -t "x402 mode"` -Expected: FAIL — base URL is still `https://api.glassnode.com` and `api_key=` is appended. - -- [ ] **Step 3: Implement the client changes** +- [ ] **Step 5: Implement the client changes** In `src/glassnode-api.ts`: -3a. Update the import at the top (add the two constants): +5a. Update the import at the top (add the two constants): ```ts import { @@ -251,50 +227,51 @@ import { } from './types/config'; ``` -3b. Change the field declaration (was `private apiKey: string;`): +5b. Change the field declaration (was `private apiKey: string;`): ```ts private apiKey: string | undefined; ``` -3c. In the constructor, replace the `this.apiKey` / `this.apiUrl` assignments: +5c. In the constructor, replace the `this.apiKey` / `this.apiUrl` assignments: ```ts - this.apiKey = validatedConfig.apiKey; - this.apiUrl = - validatedConfig.apiUrl ?? (validatedConfig.x402 ? X402_API_URL : DEFAULT_API_URL); +this.apiKey = validatedConfig.apiKey; +this.apiUrl = validatedConfig.apiUrl ?? (validatedConfig.x402 ? X402_API_URL : DEFAULT_API_URL); ``` -3d. In `request()`, replace the `queryParams` construction: +5d. In `request()`, replace the `queryParams` construction (was `new URLSearchParams({ ...params, api_key: this.apiKey })`): ```ts - const queryParams = new URLSearchParams({ - ...params, - ...(this.apiKey ? { api_key: this.apiKey } : {}), - }); +const queryParams = new URLSearchParams({ + ...params, + ...(this.apiKey ? { api_key: this.apiKey } : {}), +}); ``` -- [ ] **Step 4: Run the tests to verify they pass** +- [ ] **Step 6: Run the full suite to verify green** -Run: `pnpm exec vitest run test/glassnode-api.spec.ts` -Expected: PASS (all existing tests + the 3 new x402 tests). +Run: `pnpm exec vitest run` +Expected: PASS — the existing 26 tests (including `should create an instance with default API URL`), the 4 config tests, and the 3 x402-mode tests. -- [ ] **Step 5: Commit** +- [ ] **Step 7: Commit** ```bash -git add src/glassnode-api.ts test/glassnode-api.spec.ts -git commit -m "feat(client): resolve x402 base url and omit api_key when absent" +git add src/types/config.ts src/glassnode-api.ts test/config.spec.ts test/glassnode-api.spec.ts +git commit -m "feat(config): x402 preset, base-url resolution, conditional apiKey/fetch" ``` --- -### Task 3: Friendly 402 error message +### Task 2: Friendly 402 error message **Files:** + - Modify: `src/errors.ts:1-7` - Test: `test/glassnode-api.spec.ts` (append) **Interfaces:** + - Produces: `GlassnodeApiError` with a helpful `402` message; `isRetryable` stays `false` for `402`. - [ ] **Step 1: Write the failing tests** @@ -302,12 +279,12 @@ git commit -m "feat(client): resolve x402 base url and omit api_key when absent" Append inside `describe('error handling', ...)` in `test/glassnode-api.spec.ts`: ```ts - it('gives a helpful 402 message and marks it non-retryable', () => { - const err = new GlassnodeApiError(402, 'Payment Required'); - expect(err.message).toContain('Payment required'); - expect(err.message).toContain('glassnode-api/x402'); - expect(err.isRetryable).toBe(false); - }); +it('gives a helpful 402 message and marks it non-retryable', () => { + const err = new GlassnodeApiError(402, 'Payment Required'); + expect(err.message).toContain('Payment required'); + expect(err.message).toContain('glassnode-api/x402'); + expect(err.isRetryable).toBe(false); +}); ``` - [ ] **Step 2: Run the test to verify it fails** @@ -344,14 +321,16 @@ git commit -m "feat(errors): friendly 402 payment-required message" --- -### Task 4: Packaging — optional deps, subpath export, browser exclude +### Task 3: Packaging — optional deps, subpath export, browser exclude **Files:** + - Modify: `package.json` (exports, peerDependencies, peerDependenciesMeta, devDependencies) - Modify: `tsconfig.browser.json` (exclude) **Interfaces:** -- Produces: the `@x402/fetch`, `@x402/evm`, `viem` module specifiers resolvable at build/test time; the `glassnode-api/x402` subpath mapped to `dist/x402.js`. Task 5 depends on this. + +- Produces: the `@x402/fetch`, `@x402/evm`, `viem` module specifiers resolvable at build/test time; the `glassnode-api/x402` subpath mapped to `dist/x402.js`. Task 4 depends on this. - [ ] **Step 1: Add the optional deps as devDependencies (installs them)** @@ -412,7 +391,7 @@ In `tsconfig.browser.json`, add `"src/x402.ts"` to `exclude`: Run: `pnpm install --config.minimumReleaseAge=0 && pnpm run build && pnpm run build:browser && pnpm test` Expected: all succeed; no `dist/x402.*` yet (created in Task 5), browser bundle unchanged. -> **Fallback:** if a later `pnpm run build:browser` (Task 5 Step 7) still tries to type-check `src/x402.ts` and errors on `@x402/*`/`viem` resolution, also pass an explicit exclude to the Rollup TypeScript plugin in `rollup.config.mjs`: change `typescript({ tsconfig: './tsconfig.browser.json' })` to `typescript({ tsconfig: './tsconfig.browser.json', exclude: ['src/x402.ts'] })`. +> **Fallback:** if a later `pnpm run build:browser` (Task 4 Step 7) still tries to type-check `src/x402.ts` and errors on `@x402/*`/`viem` resolution, also pass an explicit exclude to the Rollup TypeScript plugin in `rollup.config.mjs`: change `typescript({ tsconfig: './tsconfig.browser.json' })` to `typescript({ tsconfig: './tsconfig.browser.json', exclude: ['src/x402.ts'] })`. - [ ] **Step 6: Commit** @@ -423,13 +402,15 @@ git commit -m "chore(x402): optional peer deps, ./x402 subpath export, browser e --- -### Task 5: `createX402Fetch` helper +### Task 4: `createX402Fetch` helper **Files:** + - Create: `src/x402.ts` - Test: `test/x402.spec.ts`, `test/x402.missing-deps.spec.ts` **Interfaces:** + - Consumes: `@x402/fetch` (`wrapFetchWithPayment`, `x402Client`), `@x402/evm` (`ExactEvmScheme`), `viem` (`LocalAccount` type only). - Produces: - `usdcDecimalToAtomic(value: string): bigint` @@ -548,7 +529,7 @@ export async function createX402Fetch(options: X402FetchOptions): Promise { throw new Error( "createX402Fetch requires the optional peer dependencies '@x402/fetch', '@x402/evm', and 'viem'. Install them: pnpm add @x402/fetch @x402/evm viem", - { cause: err }, + { cause: err } ); }); const { wrapFetchWithPayment, x402Client } = x402fetchMod; @@ -558,11 +539,11 @@ export async function createX402Fetch(options: X402FetchOptions): Promise[0]), + new ExactEvmScheme(account as ConstructorParameters[0]) ); } client = client.registerPolicy( - createMaxAmountPolicy(maxAtomic) as unknown as Parameters[0], + createMaxAmountPolicy(maxAtomic) as unknown as Parameters[0] ); return wrapFetchWithPayment(baseFetch, client) as typeof fetch; @@ -595,7 +576,7 @@ describe('createX402Fetch without optional deps', () => { }; await expect( // eslint-disable-next-line @typescript-eslint/no-explicit-any - createX402Fetch({ account: account as any }), + createX402Fetch({ account: account as any }) ).rejects.toThrow(/optional peer dependencies/); }); }); @@ -620,13 +601,15 @@ git commit -m "feat(x402): createX402Fetch helper (subpath glassnode-api/x402)" --- -### Task 6: Opt-in testnet integration test +### Task 5: Opt-in testnet integration test **Files:** + - Create: `test/x402.integration.spec.ts` - Modify: `package.json` (add `test:x402` script) **Interfaces:** + - Consumes: `createX402Fetch`, `GlassnodeAPI`, `X402_TESTNET_API_URL`, `viem/accounts.privateKeyToAccount`. - Produces: an env-gated E2E test that self-skips without `X402_TESTNET_PRIVATE_KEY` (so `pnpm test`/CI stay hermetic). @@ -688,12 +671,14 @@ git commit -m "test(x402): opt-in testnet integration test + test:x402 script" --- -### Task 7: Docs + version bump +### Task 6: Docs + version bump **Files:** + - Modify: `README.md`, `CHANGELOG.md`, `package.json` (version) **Interfaces:** + - Produces: user-facing docs for the feature; `0.8.0` release entry. - [ ] **Step 1: Add the README section** @@ -733,17 +718,18 @@ const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); **`createX402Fetch(options)`** -| Option | Type | Default | Description | -| ------------------- | ------------- | -------------------- | ---------------------------------------------------- | -| `account` | `LocalAccount`| — (**required**) | viem account that signs payments | -| `maxPaymentPerCall` | `string` | `'0.06'` | Per-call USDC spend ceiling | -| `fetch` | `typeof fetch`| `globalThis.fetch` | Base fetch to wrap | +| Option | Type | Default | Description | +| ------------------- | -------------- | ------------------ | -------------------------------- | +| `account` | `LocalAccount` | — (**required**) | viem account that signs payments | +| `maxPaymentPerCall` | `string` | `'0.06'` | Per-call USDC spend ceiling | +| `fetch` | `typeof fetch` | `globalThis.fetch` | Base fetch to wrap | > **Spend safety:** `maxPaymentPerCall` caps a **single** request — it is **not** a cumulative budget, so > an agent loop can still spend within that ceiling repeatedly. Use a **dedicated, funded-but-limited** > wallet (never your primary key), and load the key from the environment — never hardcode it. **Notes** + - **Bulk metrics are not available over x402** — `callBulkMetric()` only works against the free `api.glassnode.com`. - **Testnet:** target Base Sepolia by passing `apiUrl: 'https://x402.glassnode.tech'`. @@ -785,7 +771,7 @@ git commit -m "docs(x402): README section, CHANGELOG, bump to 0.8.0" ## Self-review notes (for the implementer) -- **Spec coverage:** config preset (T1), URL resolution + api_key omission (T2), 402 error (T3), packaging/optional-deps/browser-exclude (T4), helper + spend cap + missing-deps error (T5), testnet integration (T6), docs/bulk-limitation/version (T7). All spec sections map to a task. +- **Spec coverage:** config preset + URL resolution + api_key omission (T1), 402 error (T2), packaging/optional-deps/browser-exclude (T3), helper + spend cap + missing-deps error (T4), testnet integration (T5), docs/bulk-limitation/version (T6). All spec sections map to a task. - **Type names are consistent across tasks:** `createX402Fetch`, `usdcDecimalToAtomic`, `createMaxAmountPolicy`, `X402_API_URL`, `X402_TESTNET_API_URL`, `DEFAULT_API_URL`. - **Verified before writing:** the `src/x402.ts` source in Task 5 was type-checked against the real installed `@x402/fetch@2.18`, `@x402/evm@2.18`, and `viem` `.d.ts` under `tsc 6.0.3` (clean), and the client chain (`new x402Client().register(...).registerPolicy(...)` → `wrapFetchWithPayment`) was smoke-run in Node. - **If `pnpm add` is blocked by the local `.npmrc` release-age quarantine**, the `--config.minimumReleaseAge=0` flag (already in the commands) overrides it for that install. From 84027e55fce73dc6d372467d479b2af44d8f6749 Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 23:32:18 +0200 Subject: [PATCH 07/25] feat(config): x402 preset, base-url resolution, conditional apiKey/fetch --- src/glassnode-api.ts | 15 ++++++-- src/types/config.ts | 75 ++++++++++++++++++++------------------ test/config.spec.ts | 34 +++++++++++++++++ test/glassnode-api.spec.ts | 38 +++++++++++++++++++ 4 files changed, 122 insertions(+), 40 deletions(-) create mode 100644 test/config.spec.ts diff --git a/src/glassnode-api.ts b/src/glassnode-api.ts index e5132bc..a343e48 100644 --- a/src/glassnode-api.ts +++ b/src/glassnode-api.ts @@ -1,4 +1,11 @@ -import { GlassnodeConfig, GlassnodeConfigSchema, Logger, FetchFn } from './types/config'; +import { + GlassnodeConfig, + GlassnodeConfigSchema, + Logger, + FetchFn, + DEFAULT_API_URL, + X402_API_URL, +} from './types/config'; import { GlassnodeApiError } from './errors'; import { AssetMetadataResponse, @@ -15,7 +22,7 @@ import { * Glassnode API client */ export class GlassnodeAPI { - private apiKey: string; + private apiKey: string | undefined; private apiUrl: string; private logger?: Logger; private fetchFn: FetchFn; @@ -31,7 +38,7 @@ export class GlassnodeAPI { const validatedConfig = GlassnodeConfigSchema.parse(config); this.apiKey = validatedConfig.apiKey; - this.apiUrl = validatedConfig.apiUrl; + this.apiUrl = validatedConfig.apiUrl ?? (validatedConfig.x402 ? X402_API_URL : DEFAULT_API_URL); this.logger = validatedConfig.logger as Logger | undefined; this.fetchFn = (validatedConfig.fetch as FetchFn) ?? globalThis.fetch; this.maxRetries = validatedConfig.maxRetries; @@ -47,7 +54,7 @@ export class GlassnodeAPI { private async request(endpoint: string, params: Record = {}): Promise { const queryParams = new URLSearchParams({ ...params, - api_key: this.apiKey, + ...(this.apiKey ? { api_key: this.apiKey } : {}), }); const url = `${this.apiUrl}${endpoint}?${queryParams}`; diff --git a/src/types/config.ts b/src/types/config.ts index 9b5b2cf..d568552 100644 --- a/src/types/config.ts +++ b/src/types/config.ts @@ -10,45 +10,48 @@ export type Logger = (message: string, ...args: unknown[]) => void; */ export type FetchFn = typeof fetch; +/** Default free Glassnode API base URL. */ +export const DEFAULT_API_URL = 'https://api.glassnode.com'; +/** x402 (paid) Glassnode API base URL — Base mainnet. */ +export const X402_API_URL = 'https://x402.glassnode.com'; +/** x402 testnet base URL — Base Sepolia. */ +export const X402_TESTNET_API_URL = 'https://x402.glassnode.tech'; + /** * Zod schema for Glassnode API configuration */ -export const GlassnodeConfigSchema = z.object({ - /** - * API key for authentication - */ - apiKey: z.string().min(1, 'API key is required'), - - /** - * Base URL for the Glassnode API - * @default "https://api.glassnode.com" - */ - apiUrl: z.string().url().default('https://api.glassnode.com'), - - /** - * Optional logger for API call debugging - * @example { logger: console.log } - */ - logger: z.function().optional(), - - /** - * Optional custom fetch function (e.g. for custom headers, retries, or testing) - * @default globalThis.fetch - */ - fetch: z.function().optional(), - - /** - * Maximum number of retries for retryable errors (429 and 5xx) - * @default 0 (no retries) - */ - maxRetries: z.number().int().nonnegative().default(0), - - /** - * Base delay in milliseconds between retries (doubles each attempt) - * @default 1000 - */ - retryDelay: z.number().int().positive().default(1000), -}); +export const GlassnodeConfigSchema = z + .object({ + /** API key for authentication. Required unless `x402` is enabled. */ + apiKey: z.string().min(1, 'API key is required').optional(), + + /** Base URL for the Glassnode API. An explicit value always wins over the `x402` preset. */ + apiUrl: z.string().url().optional(), + + /** Route requests through the x402 paid endpoint (`https://x402.glassnode.com`). */ + x402: z.boolean().default(false), + + /** Optional logger for API call debugging. */ + logger: z.function().optional(), + + /** Optional custom fetch function (e.g. an x402-wrapped fetch, or for testing). */ + fetch: z.function().optional(), + + /** Maximum number of retries for retryable errors (429 and 5xx). */ + maxRetries: z.number().int().nonnegative().default(0), + + /** Base delay in milliseconds between retries (doubles each attempt). */ + retryDelay: z.number().int().positive().default(1000), + }) + .refine((c) => c.x402 || (c.apiKey !== undefined && c.apiKey.length > 0), { + message: 'apiKey is required unless x402 is enabled', + path: ['apiKey'], + }) + .refine((c) => !c.x402 || c.fetch !== undefined, { + message: + 'fetch is required when x402 is enabled — pass an x402-capable fetch (see glassnode-api/x402)', + path: ['fetch'], + }); /** * Configuration for the Glassnode API client diff --git a/test/config.spec.ts b/test/config.spec.ts new file mode 100644 index 0000000..067c7fc --- /dev/null +++ b/test/config.spec.ts @@ -0,0 +1,34 @@ +import { describe, it, expect } from 'vitest'; +import { + GlassnodeConfigSchema, + DEFAULT_API_URL, + X402_API_URL, + X402_TESTNET_API_URL, +} from '../src/types/config'; + +describe('GlassnodeConfigSchema', () => { + it('exposes the URL constants', () => { + expect(DEFAULT_API_URL).toBe('https://api.glassnode.com'); + expect(X402_API_URL).toBe('https://x402.glassnode.com'); + expect(X402_TESTNET_API_URL).toBe('https://x402.glassnode.tech'); + }); + + it('requires apiKey when x402 is not enabled', () => { + expect(() => GlassnodeConfigSchema.parse({})).toThrow(/apiKey/); + expect(GlassnodeConfigSchema.parse({ apiKey: 'k' }).apiKey).toBe('k'); + }); + + it('allows omitting apiKey when x402 is enabled, but then requires fetch', () => { + const fetchFn = (async () => new Response()) as unknown as typeof fetch; + expect(() => GlassnodeConfigSchema.parse({ x402: true })).toThrow(/fetch/); + const parsed = GlassnodeConfigSchema.parse({ x402: true, fetch: fetchFn }); + expect(parsed.x402).toBe(true); + expect(parsed.apiKey).toBeUndefined(); + }); + + it('defaults x402 to false and apiUrl to undefined', () => { + const parsed = GlassnodeConfigSchema.parse({ apiKey: 'k' }); + expect(parsed.x402).toBe(false); + expect(parsed.apiUrl).toBeUndefined(); + }); +}); diff --git a/test/glassnode-api.spec.ts b/test/glassnode-api.spec.ts index 26471a7..0acac94 100644 --- a/test/glassnode-api.spec.ts +++ b/test/glassnode-api.spec.ts @@ -442,4 +442,42 @@ describe('GlassnodeAPI', () => { expect(result).toEqual(mockMetricListResponse); }); }); + + describe('x402 mode', () => { + const okFetch = () => + vi.fn().mockResolvedValue({ + ok: true, + json: vi.fn().mockResolvedValue(mockMetricListResponse), + }); + + it('routes to the x402 host when x402 is true', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ x402: true, fetch: fetchFn }); + await api.getMetricList(); + expect(fetchFn).toHaveBeenCalledWith( + expect.stringContaining('https://x402.glassnode.com/v1/metadata/metrics') + ); + }); + + it('omits api_key when no apiKey is set', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ x402: true, fetch: fetchFn }); + await api.getMetricList(); + const calledUrl = fetchFn.mock.calls[0][0] as string; + expect(calledUrl).not.toContain('api_key'); + }); + + it('an explicit apiUrl overrides the x402 preset', async () => { + const fetchFn = okFetch(); + const api = new GlassnodeAPI({ + x402: true, + apiUrl: 'https://x402.glassnode.tech', + fetch: fetchFn, + }); + await api.getMetricList(); + expect(fetchFn).toHaveBeenCalledWith( + expect.stringContaining('https://x402.glassnode.tech/v1/metadata/metrics') + ); + }); + }); }); From 0cf83485553964bbc84e36809b2c6e0e45a326f5 Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 23:38:07 +0200 Subject: [PATCH 08/25] feat(errors): friendly 402 payment-required message --- src/errors.ts | 1 + test/glassnode-api.spec.ts | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/src/errors.ts b/src/errors.ts index a06f461..24d27b7 100644 --- a/src/errors.ts +++ b/src/errors.ts @@ -1,6 +1,7 @@ const STATUS_MESSAGES: Record = { 400: 'Bad request', 401: 'Invalid or missing API key', + 402: 'Payment required — pass an x402-capable fetch (see glassnode-api/x402)', 403: 'Access forbidden — check your API tier', 404: 'Endpoint or metric not found', 429: 'Rate limit exceeded', diff --git a/test/glassnode-api.spec.ts b/test/glassnode-api.spec.ts index 0acac94..c359026 100644 --- a/test/glassnode-api.spec.ts +++ b/test/glassnode-api.spec.ts @@ -321,6 +321,13 @@ describe('GlassnodeAPI', () => { expect(new GlassnodeApiError(401, 'Unauthorized').isRetryable).toBe(false); }); + it('gives a helpful 402 message and marks it non-retryable', () => { + const err = new GlassnodeApiError(402, 'Payment Required'); + expect(err.message).toContain('Payment required'); + expect(err.message).toContain('glassnode-api/x402'); + expect(err.isRetryable).toBe(false); + }); + it('should handle network errors', async () => { const fetchFn = vi.fn().mockRejectedValue(new TypeError('Failed to fetch')); const api = createApi(fetchFn); From db553ab00cb032ade7d362ac13bac73f768773f6 Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 23:41:12 +0200 Subject: [PATCH 09/25] chore(x402): optional peer deps, ./x402 subpath export, browser exclude --- package.json | 18 ++++ pnpm-lock.yaml | 217 ++++++++++++++++++++++++++++++++++++++++++ tsconfig.browser.json | 2 +- 3 files changed, 236 insertions(+), 1 deletion(-) diff --git a/package.json b/package.json index 13c02fb..8f75795 100644 --- a/package.json +++ b/package.json @@ -68,6 +68,11 @@ "import": "./dist/glassnode-api.esm.min.js", "require": "./dist/index.js", "types": "./dist/index.d.ts" + }, + "./x402": { + "types": "./dist/x402.d.ts", + "import": "./dist/x402.js", + "require": "./dist/x402.js" } }, "publishConfig": { @@ -79,6 +84,16 @@ "dependencies": { "zod": "^4.4.3" }, + "peerDependencies": { + "@x402/fetch": ">=2.18.0", + "@x402/evm": ">=2.18.0", + "viem": "^2.48.11" + }, + "peerDependenciesMeta": { + "@x402/fetch": { "optional": true }, + "@x402/evm": { "optional": true }, + "viem": { "optional": true } + }, "devDependencies": { "@eslint/js": "^10.0.1", "@rollup/plugin-commonjs": "^29.0.3", @@ -87,6 +102,8 @@ "@rollup/plugin-typescript": "^12.3.0", "@types/node": "^26.1.1", "@vitest/coverage-v8": "^4.1.10", + "@x402/evm": "^2.18.0", + "@x402/fetch": "^2.18.0", "eslint": "^10.7.0", "husky": "^9.1.7", "lint-staged": "^17.0.8", @@ -95,6 +112,7 @@ "tslib": "^2.8.1", "typescript": "^6.0.3", "typescript-eslint": "^8.64.0", + "viem": "^2.55.2", "vitest": "^4.1.10" }, "lint-staged": { diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index b0324e5..aa7f8fd 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -39,6 +39,12 @@ importers: '@vitest/coverage-v8': specifier: ^4.1.10 version: 4.1.10(vitest@4.1.10) + '@x402/evm': + specifier: ^2.18.0 + version: 2.18.0(typescript@6.0.3) + '@x402/fetch': + specifier: ^2.18.0 + version: 2.18.0 eslint: specifier: ^10.7.0 version: 10.7.0 @@ -63,12 +69,18 @@ importers: typescript-eslint: specifier: ^8.64.0 version: 8.64.0(eslint@10.7.0)(typescript@6.0.3) + viem: + specifier: ^2.55.2 + version: 2.55.2(typescript@6.0.3)(zod@4.4.3) vitest: specifier: ^4.1.10 version: 4.1.10(@types/node@26.1.1)(@vitest/coverage-v8@4.1.10)(vite@8.1.4(@types/node@26.1.1)(terser@5.46.0)(yaml@2.9.0)) packages: + '@adraffy/ens-normalize@1.11.1': + resolution: {integrity: sha512-nhCBV3quEgesuf7c7KYfperqSS14T8bYuvJ8PcLJp6znkZpFc0AuW4qBtr8eKVyPPe/8RSr7sglCWPU5eaxwKQ==} + '@babel/helper-string-parser@7.27.1': resolution: {integrity: 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resolution: {integrity: sha512-g/nm5FgUa//MCj1gV09zTJTaM6KBAHqLN907YVQqf7zC49+DcO4B1so4ZX07Ef10Twr6nuqYEH9GEggFXA4Fmg==} + + '@scure/bip32@1.7.0': + resolution: {integrity: sha512-E4FFX/N3f4B80AKWp5dP6ow+flD1LQZo/w8UnLGYZO674jS6YnYeepycOOksv+vLPSpgN35wgKgy+ybfTb2SMw==} + + '@scure/bip39@1.6.0': + resolution: {integrity: sha512-+lF0BbLiJNwVlev4eKelw1WWLaiKXw7sSl8T6FvBlWkdX+94aGJ4o8XjUdlyhTCjd8c+B3KT3JfS8P0bLRNU6A==} + '@standard-schema/spec@1.1.0': resolution: {integrity: sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==} @@ -603,6 +636,26 @@ packages: '@vitest/utils@4.1.10': resolution: {integrity: sha512-fy9am/HWxbaGt/Sawrp90vt6Y6jQwf1RX77cz3uwoJwJVMli/e1IEwRPnMNJ7vKfPTwo0diXifkpPvwH9v7nGA==} + '@x402/core@2.18.0': + resolution: {integrity: sha512-3LB5m0Yx7C38ks8jDqTGYPZ2FnLzlH9pTlGvE8er2ujS1ri12sXXvWwnmYsmh3ZkXSDbV3BKU8oRKULatPp0Hg==} + + '@x402/evm@2.18.0': + resolution: {integrity: 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dependencies: + zod: 3.25.76 + + '@x402/evm@2.18.0(typescript@6.0.3)': + dependencies: + '@x402/core': 2.18.0 + viem: 2.55.2(typescript@6.0.3)(zod@3.25.76) + zod: 3.25.76 + transitivePeerDependencies: + - bufferutil + - typescript + - utf-8-validate + + '@x402/fetch@2.18.0': + dependencies: + '@x402/core': 2.18.0 + + abitype@1.2.3(typescript@6.0.3)(zod@3.25.76): + optionalDependencies: + typescript: 6.0.3 + zod: 3.25.76 + + abitype@1.2.3(typescript@6.0.3)(zod@4.4.3): + optionalDependencies: + typescript: 6.0.3 + zod: 4.4.3 + acorn-jsx@5.3.2(acorn@8.16.0): dependencies: acorn: 8.16.0 @@ -1957,6 +2100,8 @@ snapshots: esutils@2.0.3: {} + eventemitter3@5.0.1: {} + eventemitter3@5.0.4: {} expect-type@1.4.0: {} @@ -2036,6 +2181,10 @@ snapshots: isexe@2.0.0: {} + isows@1.0.7(ws@8.21.0): + dependencies: + ws: 8.21.0 + istanbul-lib-coverage@3.2.2: {} istanbul-lib-report@3.0.1: @@ -2185,6 +2334,36 @@ snapshots: type-check: 0.4.0 word-wrap: 1.2.5 + ox@0.14.30(typescript@6.0.3)(zod@3.25.76): + dependencies: + '@adraffy/ens-normalize': 1.11.1 + '@noble/ciphers': 1.3.0 + '@noble/curves': 1.9.1 + '@noble/hashes': 1.8.0 + '@scure/bip32': 1.7.0 + '@scure/bip39': 1.6.0 + abitype: 1.2.3(typescript@6.0.3)(zod@3.25.76) + eventemitter3: 5.0.1 + optionalDependencies: + typescript: 6.0.3 + transitivePeerDependencies: + - zod + + ox@0.14.30(typescript@6.0.3)(zod@4.4.3): + dependencies: + '@adraffy/ens-normalize': 1.11.1 + '@noble/ciphers': 1.3.0 + '@noble/curves': 1.9.1 + '@noble/hashes': 1.8.0 + '@scure/bip32': 1.7.0 + '@scure/bip39': 1.6.0 + abitype: 1.2.3(typescript@6.0.3)(zod@4.4.3) + eventemitter3: 5.0.1 + optionalDependencies: + typescript: 6.0.3 + transitivePeerDependencies: + - zod + p-limit@3.1.0: dependencies: yocto-queue: 0.1.0 @@ -2398,6 +2577,40 @@ snapshots: dependencies: punycode: 2.3.1 + viem@2.55.2(typescript@6.0.3)(zod@3.25.76): + dependencies: + '@noble/curves': 1.9.1 + '@noble/hashes': 1.8.0 + '@scure/bip32': 1.7.0 + '@scure/bip39': 1.6.0 + abitype: 1.2.3(typescript@6.0.3)(zod@3.25.76) + isows: 1.0.7(ws@8.21.0) + ox: 0.14.30(typescript@6.0.3)(zod@3.25.76) + ws: 8.21.0 + optionalDependencies: + typescript: 6.0.3 + transitivePeerDependencies: + - bufferutil + - utf-8-validate + - zod + + viem@2.55.2(typescript@6.0.3)(zod@4.4.3): + dependencies: + '@noble/curves': 1.9.1 + '@noble/hashes': 1.8.0 + '@scure/bip32': 1.7.0 + '@scure/bip39': 1.6.0 + abitype: 1.2.3(typescript@6.0.3)(zod@4.4.3) + isows: 1.0.7(ws@8.21.0) + ox: 0.14.30(typescript@6.0.3)(zod@4.4.3) + ws: 8.21.0 + optionalDependencies: + typescript: 6.0.3 + transitivePeerDependencies: + - bufferutil + - utf-8-validate + - zod + vite@8.1.4(@types/node@26.1.1)(terser@5.46.0)(yaml@2.9.0): dependencies: lightningcss: 1.32.0 @@ -2462,9 +2675,13 @@ snapshots: string-width: 7.2.0 strip-ansi: 7.2.0 + ws@8.21.0: {} + yaml@2.9.0: optional: true yocto-queue@0.1.0: {} + zod@3.25.76: {} + zod@4.4.3: {} diff --git a/tsconfig.browser.json b/tsconfig.browser.json index bfd03f8..a602afe 100644 --- a/tsconfig.browser.json +++ b/tsconfig.browser.json @@ -8,5 +8,5 @@ "declaration": false }, "include": ["src/**/*"], - "exclude": ["node_modules", "dist", "test", "examples"] + "exclude": ["node_modules", "dist", "test", "examples", "src/x402.ts"] } From a81babf06d94a931b7ffc5ebb18709a169420e56 Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 23:48:36 +0200 Subject: [PATCH 10/25] feat(x402): createX402Fetch helper (subpath glassnode-api/x402) Adds src/x402.ts: usdcDecimalToAtomic, createMaxAmountPolicy, and createX402Fetch, which turns a viem LocalAccount into an x402-payment capable fetch (registers ExactEvmScheme for Base mainnet + Sepolia, enforces a per-call USDC spend ceiling). All value imports of the optional peer deps (@x402/fetch, @x402/evm) are dynamic import()s inside the async function, so the subpath stays importable without the deps installed until createX402Fetch is called; a missing dep rejects with a clear install-instructions error. Also adds "types": ["node"] to tsconfig.json: @x402/core's shipped .d.mts references the global Buffer type without an explicit reference/import, and this project's base tsconfig was not auto-including @types/node ambient globals (same gap tsconfig.test.json already worked around), which broke `tsc` once src/x402.ts pulled in @x402/core's types transitively. Verified this doesn't leak into the browser build (tsconfig.browser.json already excludes src/x402.ts; confirmed no x402 symbols appear in the rollup bundles). --- src/x402.ts | 73 ++++++++++++++++++++++++++++++++++ test/x402.missing-deps.spec.ts | 20 ++++++++++ test/x402.spec.ts | 41 +++++++++++++++++++ tsconfig.json | 3 +- 4 files changed, 136 insertions(+), 1 deletion(-) create mode 100644 src/x402.ts create mode 100644 test/x402.missing-deps.spec.ts create mode 100644 test/x402.spec.ts diff --git a/src/x402.ts b/src/x402.ts new file mode 100644 index 0000000..ef4d5aa --- /dev/null +++ b/src/x402.ts @@ -0,0 +1,73 @@ +import type { LocalAccount } from 'viem'; + +/** Options for {@link createX402Fetch}. */ +export interface X402FetchOptions { + /** viem account used to sign payment authorizations (e.g. `privateKeyToAccount(pk)`). */ + account: LocalAccount; + /** Per-call spend ceiling in USDC (decimal string). Default `'0.06'` (just above the $0.05 metric price). */ + maxPaymentPerCall?: string; + /** Base fetch to wrap. Default `globalThis.fetch`. */ + fetch?: typeof fetch; +} + +const DEFAULT_MAX_PAYMENT_PER_CALL = '0.06'; +const USDC_DECIMALS = 6; +// Base mainnet + Base Sepolia (CAIP-2). Registering both lets one wrapped fetch serve either host. +const X402_NETWORKS = ['eip155:8453', 'eip155:84532'] as const; + +/** Convert a USDC decimal string (e.g. `'0.06'`) to atomic units (6 decimals). Truncates extra decimals. */ +export function usdcDecimalToAtomic(value: string): bigint { + if (!/^\d+(\.\d+)?$/.test(value)) { + throw new Error(`Invalid USDC amount: "${value}"`); + } + const [whole, frac = ''] = value.split('.'); + const fracPadded = (frac + '0'.repeat(USDC_DECIMALS)).slice(0, USDC_DECIMALS); + return BigInt(whole) * 10n ** BigInt(USDC_DECIMALS) + BigInt(fracPadded || '0'); +} + +/** Build a payment policy that rejects any payment requirement above `maxAtomic` (atomic USDC units). */ +export function createMaxAmountPolicy(maxAtomic: bigint) { + return (_x402Version: number, requirements: { amount: string }[]): { amount: string }[] => + requirements.filter((r) => BigInt(r.amount) <= maxAtomic); +} + +/** + * Create an x402-capable `fetch` for paid Glassnode calls (Node-first). + * + * Dynamically loads the optional peer deps `@x402/fetch` + `@x402/evm`; pass the result as the + * `fetch` option of `GlassnodeAPI` together with `x402: true`. + */ +export async function createX402Fetch(options: X402FetchOptions): Promise { + const { + account, + maxPaymentPerCall = DEFAULT_MAX_PAYMENT_PER_CALL, + fetch: baseFetch = globalThis.fetch, + } = options; + + const maxAtomic = usdcDecimalToAtomic(maxPaymentPerCall); + + const [x402fetchMod, evmMod] = await Promise.all([ + import('@x402/fetch'), + import('@x402/evm'), + ]).catch((err) => { + throw new Error( + "createX402Fetch requires the optional peer dependencies '@x402/fetch', '@x402/evm', and 'viem'. Install them: pnpm add @x402/fetch @x402/evm viem", + { cause: err } + ); + }); + const { wrapFetchWithPayment, x402Client } = x402fetchMod; + const { ExactEvmScheme } = evmMod; + + let client = new x402Client(); + for (const network of X402_NETWORKS) { + client = client.register( + network, + new ExactEvmScheme(account as ConstructorParameters[0]) + ); + } + client = client.registerPolicy( + createMaxAmountPolicy(maxAtomic) as unknown as Parameters[0] + ); + + return wrapFetchWithPayment(baseFetch, client) as typeof fetch; +} diff --git a/test/x402.missing-deps.spec.ts b/test/x402.missing-deps.spec.ts new file mode 100644 index 0000000..19ce9a1 --- /dev/null +++ b/test/x402.missing-deps.spec.ts @@ -0,0 +1,20 @@ +import { describe, it, expect, vi } from 'vitest'; + +// Simulate the optional peer dep being absent: importing it throws. +vi.mock('@x402/evm', () => { + throw new Error('Cannot find package @x402/evm'); +}); + +describe('createX402Fetch without optional deps', () => { + it('throws a clear install error', async () => { + const { createX402Fetch } = await import('../src/x402'); + const account = { + address: '0x0000000000000000000000000000000000000001' as const, + signTypedData: async () => '0x' as const, + }; + await expect( + // eslint-disable-next-line @typescript-eslint/no-explicit-any + createX402Fetch({ account: account as any }) + ).rejects.toThrow(/optional peer dependencies/); + }); +}); diff --git a/test/x402.spec.ts b/test/x402.spec.ts new file mode 100644 index 0000000..36b4166 --- /dev/null +++ b/test/x402.spec.ts @@ -0,0 +1,41 @@ +import { describe, it, expect } from 'vitest'; +import { usdcDecimalToAtomic, createMaxAmountPolicy, createX402Fetch } from '../src/x402'; + +describe('usdcDecimalToAtomic', () => { + it('converts USDC decimals to 6-decimal atomic units', () => { + expect(usdcDecimalToAtomic('0.06')).toBe(60000n); + expect(usdcDecimalToAtomic('0.05')).toBe(50000n); + expect(usdcDecimalToAtomic('0.01')).toBe(10000n); + expect(usdcDecimalToAtomic('1')).toBe(1000000n); + expect(usdcDecimalToAtomic('0')).toBe(0n); + }); + + it('truncates beyond 6 decimals and rejects bad input', () => { + expect(usdcDecimalToAtomic('0.1234567')).toBe(123456n); + expect(() => usdcDecimalToAtomic('abc')).toThrow(/Invalid USDC amount/); + expect(() => usdcDecimalToAtomic('-1')).toThrow(/Invalid USDC amount/); + }); +}); + +describe('createMaxAmountPolicy', () => { + it('keeps only requirements at or below the cap', () => { + const policy = createMaxAmountPolicy(60000n); + const reqs = [{ amount: '50000' }, { amount: '60000' }, { amount: '70000' }]; + expect(policy(2, reqs)).toEqual([{ amount: '50000' }, { amount: '60000' }]); + }); +}); + +describe('createX402Fetch', () => { + it('returns a callable fetch using the real x402 client', async () => { + const account = { + address: '0x0000000000000000000000000000000000000001' as const, + signTypedData: async () => '0x' as const, + }; + const wrapped = await createX402Fetch({ + // eslint-disable-next-line @typescript-eslint/no-explicit-any + account: account as any, + maxPaymentPerCall: '0.06', + }); + expect(typeof wrapped).toBe('function'); + }); +}); diff --git a/tsconfig.json b/tsconfig.json index f714816..d0a3083 100644 --- a/tsconfig.json +++ b/tsconfig.json @@ -7,7 +7,8 @@ "outDir": "./dist", "strict": true, "forceConsistentCasingInFileNames": true, - "isolatedModules": true + "isolatedModules": true, + "types": ["node"] }, "include": ["src/**/*"], "exclude": ["node_modules", "dist", "test"] From 5f090802183bc86f7588e0cc7fdc17ff80dedf0d Mon Sep 17 00:00:00 2001 From: planadecu Date: Tue, 14 Jul 2026 23:53:21 +0200 Subject: [PATCH 11/25] test(x402): opt-in testnet integration test + test:x402 script --- package.json | 1 + test/x402.integration.spec.ts | 29 +++++++++++++++++++++++++++++ 2 files changed, 30 insertions(+) create mode 100644 test/x402.integration.spec.ts diff --git a/package.json b/package.json index 8f75795..7011e43 100644 --- a/package.json +++ b/package.json @@ -26,6 +26,7 @@ "test": "vitest run", "test:watch": "vitest", "test:coverage": "vitest run --coverage", + "test:x402": "vitest run test/x402.integration.spec.ts", "lint": "eslint .", "format": "prettier --write .", "prepare": "husky", diff --git a/test/x402.integration.spec.ts b/test/x402.integration.spec.ts new file mode 100644 index 0000000..6672055 --- /dev/null +++ b/test/x402.integration.spec.ts @@ -0,0 +1,29 @@ +import { describe, it, expect } from 'vitest'; +import { privateKeyToAccount } from 'viem/accounts'; +import { GlassnodeAPI } from '../src/glassnode-api'; +import { X402_TESTNET_API_URL } from '../src/types/config'; +import { createX402Fetch } from '../src/x402'; + +const KEY = process.env.X402_TESTNET_PRIVATE_KEY; + +// Requires a Base-Sepolia wallet funded with test USDC. Skipped unless the key is provided. +describe.skipIf(!KEY)('x402 testnet integration', () => { + it('pays for a metric on the testnet endpoint and returns validated data', async () => { + const account = privateKeyToAccount(KEY as `0x${string}`); + const api = new GlassnodeAPI({ + x402: true, + apiUrl: X402_TESTNET_API_URL, + fetch: await createX402Fetch({ account, maxPaymentPerCall: '0.06' }), + }); + + const data = await api.callMetric<{ t: number; v: number }[]>('/market/mvrv', { + a: 'BTC', + i: '24h', + }); + + expect(Array.isArray(data)).toBe(true); + expect(data.length).toBeGreaterThan(0); + expect(typeof data[0].t).toBe('number'); + expect(typeof data[0].v).toBe('number'); + }, 60_000); +}); From 76ce22b4eb9711aa7aec295a55923d8e41a4bbd3 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 08:47:59 +0200 Subject: [PATCH 12/25] docs(x402): README section, CHANGELOG, bump to 0.8.0 --- CHANGELOG.md | 9 +++++++++ CLAUDE.md | 2 +- README.md | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ package.json | 2 +- 4 files changed, 61 insertions(+), 2 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 80915c6..82cf23b 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,14 @@ # Changelog +## 0.8.0 + +- Add opt-in, Node-first **x402 payment support**: `x402: true` config preset (routes to + `https://x402.glassnode.com`) and a new `glassnode-api/x402` subpath export with + `createX402Fetch({ account, maxPaymentPerCall })`. The crypto stack (`@x402/fetch`, `@x402/evm`, + `viem`) is an optional peer dependency; the core package stays `zod`-only. +- `apiKey` is now optional when `x402` is enabled; `fetch` is required in that mode. +- Add a friendly `402` error message. Bulk metrics remain free-API only (unsupported over x402). + ## 0.7.7 - Fix transitive dev-dependency vulnerabilities via `pnpm.overrides`: `flatted` ≥3.4.2 (high), `serialize-javascript` ≥7.0.5, `picomatch` ≥4.0.4, `brace-expansion` ≥5.0.6 — `pnpm audit` now clean diff --git a/CLAUDE.md b/CLAUDE.md index d9085e6..415f0d3 100644 --- a/CLAUDE.md +++ b/CLAUDE.md @@ -6,7 +6,7 @@ This document provides context for Claude when working with this project. - `/src` - Source code - `/src/types` - TypeScript type definitions (Zod schemas + inferred types) -- `/test` - Test files (Jest) +- `/test` - Test files (Vitest) - `/examples` - Example usage patterns - `/dist` - Compiled output (not checked into git) diff --git a/README.md b/README.md index b3a76d8..43ee9c8 100644 --- a/README.md +++ b/README.md @@ -38,6 +38,7 @@ const btcPrice = await api.callMetric('/market/price_usd_close', { a: 'BTC' }); - [Error Handling](#error-handling) - [Retries](#retries) - [Bulk Metrics](#bulk-metrics) +- [Paid calls with x402](#paid-calls-with-x402) - [Browser](#browser) - [Examples](#examples) - [Development](#development) @@ -156,6 +157,55 @@ const marketcaps = await api.callBulkMetric('/market/marketcap_usd'); // [{ t: 1609459200, bulk: [{ a: 'BTC', v: 600000000000 }, { a: 'ETH', v: 100000000000 }] }] ``` +## Paid calls with x402 + +Glassnode also serves a **paid, per-call API over the [x402 protocol](https://x402.org)** at +`https://x402.glassnode.com` — no API key required, you pay per request in USDC on Base +($0.01/metadata call, $0.05/metric call). This is **Node-first** and opt-in: the crypto stack +(`@x402/fetch`, `@x402/evm`, `viem`) is an **optional peer dependency**, installed only if you use it. + +```bash +pnpm add glassnode-api @x402/fetch @x402/evm viem +``` + +```typescript +import { GlassnodeAPI } from 'glassnode-api'; +import { createX402Fetch } from 'glassnode-api/x402'; +import { privateKeyToAccount } from 'viem/accounts'; + +const account = privateKeyToAccount(process.env.PRIVATE_KEY as `0x${string}`); + +const api = new GlassnodeAPI({ + x402: true, // → https://x402.glassnode.com + fetch: await createX402Fetch({ + account, + maxPaymentPerCall: '0.06', // USDC per-call ceiling (default) + }), +}); + +// Pays $0.05 USDC on Base, transparently: +const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); +``` + +**`createX402Fetch(options)`** + +| Option | Type | Default | Description | +| ------------------- | -------------- | ------------------ | -------------------------------- | +| `account` | `LocalAccount` | — (**required**) | viem account that signs payments | +| `maxPaymentPerCall` | `string` | `'0.06'` | Per-call USDC spend ceiling | +| `fetch` | `typeof fetch` | `globalThis.fetch` | Base fetch to wrap | + +> **Spend safety:** `maxPaymentPerCall` caps a **single** request — it is **not** a cumulative budget, so +> an agent loop can still spend within that ceiling repeatedly. Use a **dedicated, funded-but-limited** +> wallet (never your primary key), and load the key from the environment — never hardcode it. + +**Notes** + +- **Bulk metrics are not available over x402** — `callBulkMetric()` only works against the free + `api.glassnode.com`. +- **Testnet:** target Base Sepolia by passing `apiUrl: 'https://x402.glassnode.tech'`. +- **Browser** signing is not supported yet (planned). + ## Browser The library ships prebuilt UMD and ESM bundles, so it also runs directly in the browser diff --git a/package.json b/package.json index 7011e43..873e195 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "glassnode-api", - "version": "0.7.6", + "version": "0.8.0", "description": "Typescript client for the Glassnode API (Node.js and Browser)", "main": "dist/index.js", "types": "dist/index.d.ts", From 0d23828a47710f6881fdf9683161390548671d91 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 10:54:58 +0200 Subject: [PATCH 13/25] docs(examples): x402 SUI active-addresses example (testnet/mainnet via env) Adds examples/x402.active-addresses.ts: builds a payment-capable fetch from a funded Base wallet, checks the metadata endpoint for SUI + 1h support, then fetches SUI active addresses (last 1 month, 1h) over x402. Network (testnet/ mainnet), wallet key, and per-call cap are env-driven. Updates .env.example, examples package.json (@x402/fetch, @x402/evm, viem), and the examples README. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- examples/.env.example | 9 ++- examples/README.md | 28 ++++++++++ examples/package.json | 5 +- examples/x402.active-addresses.ts | 92 +++++++++++++++++++++++++++++++ 4 files changed, 132 insertions(+), 2 deletions(-) create mode 100644 examples/x402.active-addresses.ts diff --git a/examples/.env.example b/examples/.env.example index fb701eb..f174cf5 100644 --- a/examples/.env.example +++ b/examples/.env.example @@ -1,2 +1,9 @@ # Glassnode API Key (obtain from https://docs.glassnode.com/basic-api/api-key) -GLASSNODE_API_KEY=your_api_key_here \ No newline at end of file +# Used by the free-API examples (metadata.validation.ts, metric.dump.ts, bulk.market-cap.ts). +GLASSNODE_API_KEY=your_api_key_here + +# --- x402 paid-API example (x402.active-addresses.ts) --- +# No API key needed — you pay per call in USDC on Base. +X402_NETWORK=testnet # testnet (Base Sepolia) | mainnet (Base) +X402_PRIVATE_KEY=0xyour_funded_wallet_private_key +X402_MAX_PAYMENT=0.06 # per-call USDC ceiling (metrics cost $0.05, metadata $0.01) diff --git a/examples/README.md b/examples/README.md index 72fedfb..1528538 100644 --- a/examples/README.md +++ b/examples/README.md @@ -48,6 +48,33 @@ Run with: npx ts-node metric.dump.ts ``` +### x402 Paid Calls — SUI Active Addresses (`x402.active-addresses.ts`) + +Demonstrates the **x402 paid API** (no API key — you pay per call in USDC on Base): + +- Build a payment-capable `fetch` from a funded Base wallet (`createX402Fetch`) +- Hit the **metadata** endpoint ($0.01) to confirm SUI + `1h` are supported +- Fetch **SUI active addresses**, last 1 month at `1h` resolution ($0.05) +- Switch between testnet (Base Sepolia) and mainnet (Base) via env + +Set these in `.env` (see `.env.example`): + +``` +X402_NETWORK=testnet # testnet | mainnet +X402_PRIVATE_KEY=0xyour_funded_wallet_private_key +X402_MAX_PAYMENT=0.06 # optional, per-call USDC ceiling +``` + +> **Wallet safety:** use a dedicated, funded-but-limited wallet — never a primary key. On testnet +> fund it with Base Sepolia test USDC; on mainnet it spends real USDC. `X402_MAX_PAYMENT` caps each +> call, not total spend. Start on `testnet`, then set `X402_NETWORK=mainnet`. + +Run with: + +```bash +npx ts-node x402.active-addresses.ts +``` + ## Dependencies The examples use: @@ -55,6 +82,7 @@ The examples use: - `dotenv` - For loading environment variables - `ts-node` - For running TypeScript files directly - `zod` - For schema validation (used in metadata.validation.ts) +- `@x402/fetch`, `@x402/evm`, `viem` - For the x402 paid-API example (payment signing on Base) ## Adding New Examples diff --git a/examples/package.json b/examples/package.json index 4d2e7b4..216688e 100644 --- a/examples/package.json +++ b/examples/package.json @@ -3,7 +3,10 @@ "version": "1.0.0", "private": true, "dependencies": { - "dotenv": "^16.5.0" + "@x402/evm": "^2.18.0", + "@x402/fetch": "^2.18.0", + "dotenv": "^16.5.0", + "viem": "^2.48.11" }, "devDependencies": { "ts-node": "^10.9.2" diff --git a/examples/x402.active-addresses.ts b/examples/x402.active-addresses.ts new file mode 100644 index 0000000..37354d3 --- /dev/null +++ b/examples/x402.active-addresses.ts @@ -0,0 +1,92 @@ +/** + * x402 paid-API example: SUI active addresses (last 1 month, 1h resolution). + * + * Flow: + * 1. Build a payment-capable fetch from a funded Base wallet (viem account). + * 2. Hit the METADATA endpoint ($0.01) to confirm the metric supports SUI and 1h. + * 3. Hit the METRIC endpoint ($0.05) for SUI active addresses over the last month @ 1h. + * + * Runs against the testnet (Base Sepolia) or mainnet (Base) depending on X402_NETWORK. + * Start on testnet with a Sepolia-funded test-USDC wallet, then flip to mainnet. + * + * Env (examples/.env): + * X402_NETWORK testnet | mainnet (default: testnet) + * X402_PRIVATE_KEY 0x-prefixed private key of a funded Base wallet (required) + * X402_MAX_PAYMENT per-call USDC ceiling (default: 0.06) + * + * Run: npx ts-node x402.active-addresses.ts + */ +import { GlassnodeAPI, X402_TESTNET_API_URL } from '../src'; +import { createX402Fetch } from '../src/x402'; +import { privateKeyToAccount } from 'viem/accounts'; +import 'dotenv/config'; + +const NETWORK = (process.env.X402_NETWORK ?? 'testnet').toLowerCase(); +const PRIVATE_KEY = process.env.X402_PRIVATE_KEY; +const MAX_PAYMENT = process.env.X402_MAX_PAYMENT ?? '0.06'; + +const ASSET = 'SUI'; +const METRIC = '/addresses/active_count'; +const RESOLUTION = '1h'; +const ONE_MONTH_SECONDS = 30 * 24 * 60 * 60; + +async function main(): Promise { + if (!PRIVATE_KEY) { + throw new Error( + 'X402_PRIVATE_KEY is required — set it in examples/.env to a funded Base wallet private key (0x...).' + ); + } + if (NETWORK !== 'testnet' && NETWORK !== 'mainnet') { + throw new Error(`X402_NETWORK must be "testnet" or "mainnet" (got "${NETWORK}").`); + } + + const account = privateKeyToAccount(PRIVATE_KEY as `0x${string}`); + console.log(`x402 ${NETWORK} — wallet ${account.address}`); + console.log(`Per-call cap: $${MAX_PAYMENT} USDC\n`); + + const api = new GlassnodeAPI({ + x402: true, // defaults to mainnet (https://x402.glassnode.com) + ...(NETWORK === 'testnet' ? { apiUrl: X402_TESTNET_API_URL } : {}), + fetch: await createX402Fetch({ account, maxPaymentPerCall: MAX_PAYMENT }), + logger: console.log, + }); + + // 1) Metadata ($0.01): confirm the metric supports SUI and 1h resolution. + console.log(`\nChecking metadata for ${METRIC} ...`); + const meta = await api.getMetricMetadata(METRIC); + const assets = meta.parameters?.a ?? []; + const resolutions = meta.parameters?.i ?? []; + const hasSui = assets.includes(ASSET); + const has1h = resolutions.includes(RESOLUTION); + console.log( + ` supported assets: ${assets.length} — ${ASSET} ${hasSui ? 'present ✓' : 'MISSING ✗'}` + ); + console.log( + ` resolutions: ${resolutions.join(', ') || '(none listed)'} — ${RESOLUTION} ${has1h ? '✓' : 'not listed'}` + ); + if (!hasSui) console.warn(` ⚠ ${ASSET} not listed for ${METRIC}; querying anyway.`); + + // 2) Metric ($0.05): SUI active addresses, last 1 month @ 1h. + const since = Math.floor(Date.now() / 1000) - ONE_MONTH_SECONDS; + console.log(`\nFetching ${ASSET} active addresses, last 1 month @ ${RESOLUTION} ...`); + const data = await api.callMetric<{ t: number; v: number }[]>(METRIC, { + a: ASSET, + i: RESOLUTION, + s: String(since), + }); + + console.log(`\n${data.length} data points`); + if (data.length > 0) { + const first = data[0]; + const last = data[data.length - 1]; + const avg = data.reduce((sum, d) => sum + d.v, 0) / data.length; + console.log(` first: ${new Date(first.t * 1000).toISOString()} → ${first.v}`); + console.log(` last: ${new Date(last.t * 1000).toISOString()} → ${last.v}`); + console.log(` avg active addresses: ${Math.round(avg)}`); + } +} + +main().catch((err) => { + console.error('\n✗ Failed:', err instanceof Error ? err.message : err); + process.exit(1); +}); From dcf1b0070285cac1f14f366862985088c0144d7a Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 13:18:02 +0200 Subject: [PATCH 14/25] fix(errors): make 402 message accurate for failed x402 payments MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The old 402 message ("pass an x402-capable fetch") misleads when the fetch IS x402-capable but the payment didn't settle (e.g. insufficient USDC or over maxPaymentPerCall) — the exact case an unfunded testnet wallet hits. Reword to cover both: payment-not-completing (check USDC balance / cap) and the no-wrapper case. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- src/errors.ts | 2 +- test/glassnode-api.spec.ts | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/src/errors.ts b/src/errors.ts index 24d27b7..0c99ffa 100644 --- a/src/errors.ts +++ b/src/errors.ts @@ -1,7 +1,7 @@ const STATUS_MESSAGES: Record = { 400: 'Bad request', 401: 'Invalid or missing API key', - 402: 'Payment required — pass an x402-capable fetch (see glassnode-api/x402)', + 402: 'Payment required — if using x402, the payment did not complete (check the wallet holds enough USDC on Base and the price is within maxPaymentPerCall); otherwise pass an x402-capable fetch (see glassnode-api/x402)', 403: 'Access forbidden — check your API tier', 404: 'Endpoint or metric not found', 429: 'Rate limit exceeded', diff --git a/test/glassnode-api.spec.ts b/test/glassnode-api.spec.ts index c359026..7b87efa 100644 --- a/test/glassnode-api.spec.ts +++ b/test/glassnode-api.spec.ts @@ -324,6 +324,9 @@ describe('GlassnodeAPI', () => { it('gives a helpful 402 message and marks it non-retryable', () => { const err = new GlassnodeApiError(402, 'Payment Required'); expect(err.message).toContain('Payment required'); + // Covers the funded-but-failed x402 case (payment did not settle), not only "no wrapper" + expect(err.message).toContain('USDC'); + expect(err.message).toContain('maxPaymentPerCall'); expect(err.message).toContain('glassnode-api/x402'); expect(err.isRetryable).toBe(false); }); From 9d724bcfd219d3fb9319e3e8a6de000589c927d3 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 14:06:29 +0200 Subject: [PATCH 15/25] docs(examples): default x402 example to ETH, add X402_ASSET, skip unsupported SUI active_count isn't offered on the testnet x402 endpoint (metadata: SUI absent from the supported-asset list), so default the example to ETH (works on testnet) and make the asset overridable via X402_ASSET. When the chosen asset isn't supported for the metric, the example now prints a few supported assets and returns early instead of wasting the $0.05 metric call on a 403. Renamed to ex.x402.active-addresses.ts to match the local examples naming. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- examples/.env.example | 1 + examples/README.md | 13 +++++-- ...dresses.ts => ex.x402.active-addresses.ts} | 37 +++++++++++++------ 3 files changed, 36 insertions(+), 15 deletions(-) rename examples/{x402.active-addresses.ts => ex.x402.active-addresses.ts} (70%) diff --git a/examples/.env.example b/examples/.env.example index f174cf5..7b20a4d 100644 --- a/examples/.env.example +++ b/examples/.env.example @@ -5,5 +5,6 @@ GLASSNODE_API_KEY=your_api_key_here # --- x402 paid-API example (x402.active-addresses.ts) --- # No API key needed — you pay per call in USDC on Base. X402_NETWORK=testnet # testnet (Base Sepolia) | mainnet (Base) +X402_ASSET=ETH # asset symbol (default ETH; SUI active_count is mainnet-only) X402_PRIVATE_KEY=0xyour_funded_wallet_private_key X402_MAX_PAYMENT=0.06 # per-call USDC ceiling (metrics cost $0.05, metadata $0.01) diff --git a/examples/README.md b/examples/README.md index 1528538..309bbe4 100644 --- a/examples/README.md +++ b/examples/README.md @@ -48,19 +48,24 @@ Run with: npx ts-node metric.dump.ts ``` -### x402 Paid Calls — SUI Active Addresses (`x402.active-addresses.ts`) +### x402 Paid Calls — Active Addresses (`ex.x402.active-addresses.ts`) Demonstrates the **x402 paid API** (no API key — you pay per call in USDC on Base): - Build a payment-capable `fetch` from a funded Base wallet (`createX402Fetch`) -- Hit the **metadata** endpoint ($0.01) to confirm SUI + `1h` are supported -- Fetch **SUI active addresses**, last 1 month at `1h` resolution ($0.05) +- Hit the **metadata** endpoint ($0.01) to confirm the asset + `1h` are supported +- Fetch **active addresses** for the asset, last 1 month at `1h` resolution ($0.05) - Switch between testnet (Base Sepolia) and mainnet (Base) via env +Defaults to **ETH** (supported on testnet). Override with `X402_ASSET` — e.g. `SUI`, which is +only offered on **mainnet** for this metric (the metadata check will tell you and skip the paid +query if an asset isn't supported). + Set these in `.env` (see `.env.example`): ``` X402_NETWORK=testnet # testnet | mainnet +X402_ASSET=ETH # optional, asset symbol (default ETH) X402_PRIVATE_KEY=0xyour_funded_wallet_private_key X402_MAX_PAYMENT=0.06 # optional, per-call USDC ceiling ``` @@ -72,7 +77,7 @@ X402_MAX_PAYMENT=0.06 # optional, per-call USDC ceiling Run with: ```bash -npx ts-node x402.active-addresses.ts +npx ts-node ex.x402.active-addresses.ts ``` ## Dependencies diff --git a/examples/x402.active-addresses.ts b/examples/ex.x402.active-addresses.ts similarity index 70% rename from examples/x402.active-addresses.ts rename to examples/ex.x402.active-addresses.ts index 37354d3..3695402 100644 --- a/examples/x402.active-addresses.ts +++ b/examples/ex.x402.active-addresses.ts @@ -1,20 +1,24 @@ /** - * x402 paid-API example: SUI active addresses (last 1 month, 1h resolution). + * x402 paid-API example: active addresses (last 1 month, 1h resolution). * * Flow: * 1. Build a payment-capable fetch from a funded Base wallet (viem account). - * 2. Hit the METADATA endpoint ($0.01) to confirm the metric supports SUI and 1h. - * 3. Hit the METRIC endpoint ($0.05) for SUI active addresses over the last month @ 1h. + * 2. Hit the METADATA endpoint ($0.01) to confirm the metric supports the asset and 1h. + * 3. Hit the METRIC endpoint ($0.05) for active addresses over the last month @ 1h. + * + * Defaults to ETH (supported on testnet). Override the asset with X402_ASSET — e.g. try + * SUI on mainnet (SUI active_count is not offered on the testnet endpoint). * * Runs against the testnet (Base Sepolia) or mainnet (Base) depending on X402_NETWORK. * Start on testnet with a Sepolia-funded test-USDC wallet, then flip to mainnet. * * Env (examples/.env): * X402_NETWORK testnet | mainnet (default: testnet) + * X402_ASSET asset symbol (default: ETH) * X402_PRIVATE_KEY 0x-prefixed private key of a funded Base wallet (required) * X402_MAX_PAYMENT per-call USDC ceiling (default: 0.06) * - * Run: npx ts-node x402.active-addresses.ts + * Run: npx ts-node ex.x402.active-addresses.ts */ import { GlassnodeAPI, X402_TESTNET_API_URL } from '../src'; import { createX402Fetch } from '../src/x402'; @@ -24,8 +28,8 @@ import 'dotenv/config'; const NETWORK = (process.env.X402_NETWORK ?? 'testnet').toLowerCase(); const PRIVATE_KEY = process.env.X402_PRIVATE_KEY; const MAX_PAYMENT = process.env.X402_MAX_PAYMENT ?? '0.06'; +const ASSET = (process.env.X402_ASSET ?? 'ETH').toUpperCase(); -const ASSET = 'SUI'; const METRIC = '/addresses/active_count'; const RESOLUTION = '1h'; const ONE_MONTH_SECONDS = 30 * 24 * 60 * 60; @@ -42,7 +46,7 @@ async function main(): Promise { const account = privateKeyToAccount(PRIVATE_KEY as `0x${string}`); console.log(`x402 ${NETWORK} — wallet ${account.address}`); - console.log(`Per-call cap: $${MAX_PAYMENT} USDC\n`); + console.log(`Asset: ${ASSET} | per-call cap: $${MAX_PAYMENT} USDC\n`); const api = new GlassnodeAPI({ x402: true, // defaults to mainnet (https://x402.glassnode.com) @@ -51,22 +55,33 @@ async function main(): Promise { logger: console.log, }); - // 1) Metadata ($0.01): confirm the metric supports SUI and 1h resolution. + // 1) Metadata ($0.01): confirm the metric supports the asset and 1h resolution. console.log(`\nChecking metadata for ${METRIC} ...`); const meta = await api.getMetricMetadata(METRIC); const assets = meta.parameters?.a ?? []; const resolutions = meta.parameters?.i ?? []; - const hasSui = assets.includes(ASSET); + const hasAsset = assets.includes(ASSET); const has1h = resolutions.includes(RESOLUTION); console.log( - ` supported assets: ${assets.length} — ${ASSET} ${hasSui ? 'present ✓' : 'MISSING ✗'}` + ` supported assets: ${assets.length} — ${ASSET} ${hasAsset ? 'present ✓' : 'MISSING ✗'}` ); console.log( ` resolutions: ${resolutions.join(', ') || '(none listed)'} — ${RESOLUTION} ${has1h ? '✓' : 'not listed'}` ); - if (!hasSui) console.warn(` ⚠ ${ASSET} not listed for ${METRIC}; querying anyway.`); - // 2) Metric ($0.05): SUI active addresses, last 1 month @ 1h. + // Avoid wasting the $0.05 metric call on an asset the metric doesn't support. + if (!hasAsset) { + const sample = assets.slice(0, 12).join(', '); + console.warn( + `\n⚠ ${ASSET} is not supported for ${METRIC} on this endpoint. Try one of: ${sample}${ + assets.length > 12 ? ', …' : '' + }` + ); + console.warn(` Set X402_ASSET= (or X402_NETWORK=mainnet) and re-run.`); + return; + } + + // 2) Metric ($0.05): active addresses, last 1 month @ 1h. const since = Math.floor(Date.now() / 1000) - ONE_MONTH_SECONDS; console.log(`\nFetching ${ASSET} active addresses, last 1 month @ ${RESOLUTION} ...`); const data = await api.callMetric<{ t: number; v: number }[]>(METRIC, { From bacc5d826389904614317cd46d1b6c90c882626a Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 14:41:19 +0200 Subject: [PATCH 16/25] feat(errors): surface the server error-body message in GlassnodeApiError MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Glassnode returns a JSON body like {"message":"Resolution 1h is not allowed. Allowed resolutions: [24h, 1w, 1month]"} on failures, but the client discarded it — so a 403/400 gave only a generic message. request() now reads the error body (best-effort, never throws), extracts message/error (or raw text), and appends it; GlassnodeApiError gains an optional `detail`. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- src/errors.ts | 9 ++++++--- src/glassnode-api.ts | 29 ++++++++++++++++++++++++++++- test/glassnode-api.spec.ts | 37 +++++++++++++++++++++++++++++++++++++ 3 files changed, 71 insertions(+), 4 deletions(-) diff --git a/src/errors.ts b/src/errors.ts index 0c99ffa..4997c50 100644 --- a/src/errors.ts +++ b/src/errors.ts @@ -10,13 +10,16 @@ const STATUS_MESSAGES: Record = { export class GlassnodeApiError extends Error { readonly status: number; readonly statusText: string; + /** Server-provided error detail parsed from the response body, if any. */ + readonly detail?: string; - constructor(status: number, statusText: string) { - const detail = STATUS_MESSAGES[status] ?? statusText; - super(`API request failed (${status}): ${detail}`); + constructor(status: number, statusText: string, detail?: string) { + const base = STATUS_MESSAGES[status] ?? statusText; + super(`API request failed (${status}): ${base}${detail ? ` — ${detail}` : ''}`); this.name = 'GlassnodeApiError'; this.status = status; this.statusText = statusText; + this.detail = detail; } get isRetryable(): boolean { diff --git a/src/glassnode-api.ts b/src/glassnode-api.ts index a343e48..a35f09d 100644 --- a/src/glassnode-api.ts +++ b/src/glassnode-api.ts @@ -78,7 +78,11 @@ export class GlassnodeAPI { lastError = error; continue; } - throw error; + // Surface the server's error body (e.g. "Resolution 1h is not allowed") in the message. + const detail = await this.readErrorDetail(response); + throw detail + ? new GlassnodeApiError(response.status, response.statusText, detail) + : error; } return await response.json(); @@ -98,6 +102,29 @@ export class GlassnodeAPI { throw lastError; } + /** + * Best-effort extraction of a human-readable message from an error response body. + * Glassnode returns `{ "message": "..." }` (or `{ "error": "..." }`) on failures. + * Never throws — returns undefined if the body is empty or unreadable. + */ + private async readErrorDetail(response: Response): Promise { + try { + const text = await response.text(); + if (!text) return undefined; + try { + const parsed = JSON.parse(text); + const message = parsed?.message ?? parsed?.error; + if (typeof message === 'string' && message.trim()) return message.trim(); + } catch { + // Body is not JSON — fall through to the raw text. + } + const trimmed = text.trim(); + return trimmed ? trimmed.slice(0, 300) : undefined; + } catch { + return undefined; + } + } + /** * Get metadata for all assets * @returns Promise resolving to validated asset metadata diff --git a/test/glassnode-api.spec.ts b/test/glassnode-api.spec.ts index 7b87efa..4c39935 100644 --- a/test/glassnode-api.spec.ts +++ b/test/glassnode-api.spec.ts @@ -331,6 +331,43 @@ describe('GlassnodeAPI', () => { expect(err.isRetryable).toBe(false); }); + it('appends a server detail to the message and exposes it on .detail', () => { + const err = new GlassnodeApiError(403, 'Forbidden', 'Resolution 1h is not allowed'); + expect(err.message).toContain('Access forbidden'); + expect(err.message).toContain('Resolution 1h is not allowed'); + expect(err.detail).toBe('Resolution 1h is not allowed'); + }); + + it('surfaces the JSON error-body message from the server', async () => { + const fetchFn = vi.fn().mockResolvedValue({ + ok: false, + status: 403, + statusText: 'Forbidden', + text: vi.fn().mockResolvedValue( + JSON.stringify({ + message: 'Resolution 1h is not allowed. Allowed resolutions: [24h, 1w, 1month]', + }) + ), + }); + const api = createApi(fetchFn); + + await expect( + api.callMetric('/addresses/active_count', { a: 'ETH', i: '1h' }) + ).rejects.toThrow('Resolution 1h is not allowed'); + }); + + it('surfaces a plain-text error body when it is not JSON', async () => { + const fetchFn = vi.fn().mockResolvedValue({ + ok: false, + status: 400, + statusText: 'Bad Request', + text: vi.fn().mockResolvedValue('unexpected parameter "foo"'), + }); + const api = createApi(fetchFn); + + await expect(api.getMetricList()).rejects.toThrow('unexpected parameter "foo"'); + }); + it('should handle network errors', async () => { const fetchFn = vi.fn().mockRejectedValue(new TypeError('Failed to fetch')); const api = createApi(fetchFn); From 8766dc8b85e284ce447b935a4d40eff2a4b60e00 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 14:41:26 +0200 Subject: [PATCH 17/25] docs(examples): x402 example default 24h, configurable metric/resolution active_count rejects i=1h on the x402 endpoint ("Resolution 1h is not allowed"), so default to 24h. Make metric/asset/resolution env-configurable and add X402_SKIP_METADATA to isolate a single paid call. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- examples/.env.example | 2 +- examples/ex.x402.active-addresses.ts | 93 +++++++++++++++------------- 2 files changed, 52 insertions(+), 43 deletions(-) diff --git a/examples/.env.example b/examples/.env.example index 7b20a4d..a59d2a7 100644 --- a/examples/.env.example +++ b/examples/.env.example @@ -5,6 +5,6 @@ GLASSNODE_API_KEY=your_api_key_here # --- x402 paid-API example (x402.active-addresses.ts) --- # No API key needed — you pay per call in USDC on Base. X402_NETWORK=testnet # testnet (Base Sepolia) | mainnet (Base) -X402_ASSET=ETH # asset symbol (default ETH; SUI active_count is mainnet-only) +X402_ASSET=ETH # optional, asset symbol (default ETH) X402_PRIVATE_KEY=0xyour_funded_wallet_private_key X402_MAX_PAYMENT=0.06 # per-call USDC ceiling (metrics cost $0.05, metadata $0.01) diff --git a/examples/ex.x402.active-addresses.ts b/examples/ex.x402.active-addresses.ts index 3695402..855c5f5 100644 --- a/examples/ex.x402.active-addresses.ts +++ b/examples/ex.x402.active-addresses.ts @@ -1,22 +1,28 @@ /** - * x402 paid-API example: active addresses (last 1 month, 1h resolution). + * x402 paid-API example: active addresses (configurable metric/asset/resolution). * * Flow: * 1. Build a payment-capable fetch from a funded Base wallet (viem account). - * 2. Hit the METADATA endpoint ($0.01) to confirm the metric supports the asset and 1h. - * 3. Hit the METRIC endpoint ($0.05) for active addresses over the last month @ 1h. + * 2. Hit the METADATA endpoint ($0.01) to confirm the metric supports the asset + resolution. + * 3. Hit the METRIC endpoint ($0.05) for the last month of data at that resolution. * - * Defaults to ETH (supported on testnet). Override the asset with X402_ASSET — e.g. try - * SUI on mainnet (SUI active_count is not offered on the testnet endpoint). - * - * Runs against the testnet (Base Sepolia) or mainnet (Base) depending on X402_NETWORK. - * Start on testnet with a Sepolia-funded test-USDC wallet, then flip to mainnet. + * Defaults: ETH active addresses at 24h on testnet. + * Notes: + * - active_count only allows 24h/1w/1month on the x402 endpoint — i=1h returns HTTP 403 + * "Resolution 1h is not allowed" (the metadata `parameters.i` list can be broader than + * what the endpoint actually serves). + * - Some assets (e.g. SUI) are only offered on mainnet for a given metric — the metadata + * check reports this and skips the paid query. + * - X402_SKIP_METADATA=1 makes a single paid metric call (no metadata call first). * * Env (examples/.env): - * X402_NETWORK testnet | mainnet (default: testnet) - * X402_ASSET asset symbol (default: ETH) - * X402_PRIVATE_KEY 0x-prefixed private key of a funded Base wallet (required) - * X402_MAX_PAYMENT per-call USDC ceiling (default: 0.06) + * X402_NETWORK testnet | mainnet (default: testnet) + * X402_METRIC metric path (default: /addresses/active_count) + * X402_ASSET asset symbol (default: ETH) + * X402_RESOLUTION 24h | 1w | 1month (default: 24h; 1h is not allowed) + * X402_SKIP_METADATA 1 to skip the metadata call (default: 0) + * X402_PRIVATE_KEY 0x-prefixed key of a funded Base wallet (required) + * X402_MAX_PAYMENT per-call USDC ceiling (default: 0.06) * * Run: npx ts-node ex.x402.active-addresses.ts */ @@ -28,10 +34,10 @@ import 'dotenv/config'; const NETWORK = (process.env.X402_NETWORK ?? 'testnet').toLowerCase(); const PRIVATE_KEY = process.env.X402_PRIVATE_KEY; const MAX_PAYMENT = process.env.X402_MAX_PAYMENT ?? '0.06'; +const METRIC = process.env.X402_METRIC ?? '/addresses/active_count'; const ASSET = (process.env.X402_ASSET ?? 'ETH').toUpperCase(); - -const METRIC = '/addresses/active_count'; -const RESOLUTION = '1h'; +const RESOLUTION = process.env.X402_RESOLUTION ?? '24h'; +const SKIP_METADATA = process.env.X402_SKIP_METADATA === '1'; const ONE_MONTH_SECONDS = 30 * 24 * 60 * 60; async function main(): Promise { @@ -46,7 +52,7 @@ async function main(): Promise { const account = privateKeyToAccount(PRIVATE_KEY as `0x${string}`); console.log(`x402 ${NETWORK} — wallet ${account.address}`); - console.log(`Asset: ${ASSET} | per-call cap: $${MAX_PAYMENT} USDC\n`); + console.log(`${METRIC} asset=${ASSET} i=${RESOLUTION} cap=$${MAX_PAYMENT}\n`); const api = new GlassnodeAPI({ x402: true, // defaults to mainnet (https://x402.glassnode.com) @@ -55,35 +61,38 @@ async function main(): Promise { logger: console.log, }); - // 1) Metadata ($0.01): confirm the metric supports the asset and 1h resolution. - console.log(`\nChecking metadata for ${METRIC} ...`); - const meta = await api.getMetricMetadata(METRIC); - const assets = meta.parameters?.a ?? []; - const resolutions = meta.parameters?.i ?? []; - const hasAsset = assets.includes(ASSET); - const has1h = resolutions.includes(RESOLUTION); - console.log( - ` supported assets: ${assets.length} — ${ASSET} ${hasAsset ? 'present ✓' : 'MISSING ✗'}` - ); - console.log( - ` resolutions: ${resolutions.join(', ') || '(none listed)'} — ${RESOLUTION} ${has1h ? '✓' : 'not listed'}` - ); - - // Avoid wasting the $0.05 metric call on an asset the metric doesn't support. - if (!hasAsset) { - const sample = assets.slice(0, 12).join(', '); - console.warn( - `\n⚠ ${ASSET} is not supported for ${METRIC} on this endpoint. Try one of: ${sample}${ - assets.length > 12 ? ', …' : '' - }` + // 1) Metadata ($0.01): confirm the metric supports the asset and resolution. + // Skip with X402_SKIP_METADATA=1 to make a single paid metric call. + if (!SKIP_METADATA) { + console.log(`\nChecking metadata for ${METRIC} ...`); + const meta = await api.getMetricMetadata(METRIC); + const assets = meta.parameters?.a ?? []; + const resolutions = meta.parameters?.i ?? []; + const hasAsset = assets.includes(ASSET); + const hasResolution = resolutions.includes(RESOLUTION); + console.log( + ` supported assets: ${assets.length} — ${ASSET} ${hasAsset ? 'present ✓' : 'MISSING ✗'}` ); - console.warn(` Set X402_ASSET= (or X402_NETWORK=mainnet) and re-run.`); - return; + console.log( + ` resolutions: ${resolutions.join(', ') || '(none listed)'} — ${RESOLUTION} ${hasResolution ? '✓' : 'not listed'}` + ); + + // Skip the $0.05 metric call if the metadata already says the asset is unsupported. + if (!hasAsset) { + const sample = assets.slice(0, 12).join(', '); + console.warn( + `\n⚠ ${ASSET} is not supported for ${METRIC} on this endpoint. Try one of: ${sample}${ + assets.length > 12 ? ', …' : '' + }` + ); + console.warn(' Set X402_ASSET= (or X402_NETWORK=mainnet) and re-run.'); + return; + } } - // 2) Metric ($0.05): active addresses, last 1 month @ 1h. + // 2) Metric ($0.05): last month of data at the chosen resolution. const since = Math.floor(Date.now() / 1000) - ONE_MONTH_SECONDS; - console.log(`\nFetching ${ASSET} active addresses, last 1 month @ ${RESOLUTION} ...`); + console.log(`\nFetching ${ASSET} ${METRIC}, last 1 month @ ${RESOLUTION} ...`); const data = await api.callMetric<{ t: number; v: number }[]>(METRIC, { a: ASSET, i: RESOLUTION, @@ -97,7 +106,7 @@ async function main(): Promise { const avg = data.reduce((sum, d) => sum + d.v, 0) / data.length; console.log(` first: ${new Date(first.t * 1000).toISOString()} → ${first.v}`); console.log(` last: ${new Date(last.t * 1000).toISOString()} → ${last.v}`); - console.log(` avg active addresses: ${Math.round(avg)}`); + console.log(` average: ${Math.round(avg)}`); } } From 14be2604c932444fc673189c0964ce03e400cee6 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 14:42:06 +0200 Subject: [PATCH 18/25] docs(changelog): note GlassnodeApiError error-body surfacing under 0.8.0 Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- CHANGELOG.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 82cf23b..85830cb 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -8,6 +8,8 @@ `viem`) is an optional peer dependency; the core package stays `zod`-only. - `apiKey` is now optional when `x402` is enabled; `fetch` is required in that mode. - Add a friendly `402` error message. Bulk metrics remain free-API only (unsupported over x402). +- `GlassnodeApiError` now surfaces the server's error-body message (e.g. "Resolution 1h is not + allowed") and exposes it on `.detail`, instead of only a generic status message. ## 0.7.7 From 641cf44a3750b02d821754d277b9f1eb3c6882b4 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 14:47:22 +0200 Subject: [PATCH 19/25] fix(security): redact api_key in logged URLs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The optional logger received the full request URL, which in non-x402 mode includes ?api_key= — leaking the API key into any log sink. Mask the api_key value before logging (other params preserved). Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- src/glassnode-api.ts | 7 ++++++- test/glassnode-api.spec.ts | 15 +++++++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/src/glassnode-api.ts b/src/glassnode-api.ts index a35f09d..a271182 100644 --- a/src/glassnode-api.ts +++ b/src/glassnode-api.ts @@ -18,6 +18,11 @@ import { BulkResponseSchema, } from './types/metadata'; +/** Mask the `api_key` query-param value so it never reaches logs. */ +function redactApiKey(url: string): string { + return url.replace(/([?&]api_key=)[^&]+/gi, '$1***'); +} + /** * Glassnode API client */ @@ -67,7 +72,7 @@ export class GlassnodeAPI { await new Promise((resolve) => setTimeout(resolve, delay)); } - this.logger?.('API call:', url); + this.logger?.('API call:', redactApiKey(url)); try { const response = await this.fetchFn(url); diff --git a/test/glassnode-api.spec.ts b/test/glassnode-api.spec.ts index 4c39935..b6befb7 100644 --- a/test/glassnode-api.spec.ts +++ b/test/glassnode-api.spec.ts @@ -61,6 +61,21 @@ describe('GlassnodeAPI', () => { expect(logger).toHaveBeenCalledWith('API call:', expect.stringContaining(DEFAULT_API_URL)); }); + it('redacts the api_key in logged URLs', async () => { + const logger = vi.fn(); + const fetchFn = createMockFetch({ + ok: true, + json: vi.fn().mockResolvedValue(mockMetricListResponse), + }); + + const api = new GlassnodeAPI({ apiKey: API_KEY, logger, fetch: fetchFn }); + await api.getMetricList(); + + const logged = logger.mock.calls.find((c) => c[0] === 'API call:')?.[1] as string; + expect(logged).toContain('api_key=***'); + expect(logged).not.toContain(API_KEY); + }); + it('should use custom fetch when provided', async () => { const fetchFn = createMockFetch({ ok: true, From f65d08362d92c53b387bb60ae5b5d43ac9d51d1b Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 14:47:50 +0200 Subject: [PATCH 20/25] docs(changelog): note api_key log redaction under 0.8.0 Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- CHANGELOG.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 85830cb..6c35da4 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -10,6 +10,8 @@ - Add a friendly `402` error message. Bulk metrics remain free-API only (unsupported over x402). - `GlassnodeApiError` now surfaces the server's error-body message (e.g. "Resolution 1h is not allowed") and exposes it on `.detail`, instead of only a generic status message. +- **Security:** redact the `api_key` query-param value in URLs passed to the optional `logger` + (previously the key could leak into log sinks). ## 0.7.7 From 19a37bfa45c190405681b450a2040289b17aa2b2 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 14:56:32 +0200 Subject: [PATCH 21/25] refactor(x402): don't hardcode the testnet endpoint; supply it via env Remove the X402_TESTNET_API_URL constant (which baked the testnet domain into the shipped library) and every reference to that domain across tests, example, README, and design docs. Target a non-default x402 endpoint by passing its URL as `apiUrl`: - example reads an optional X402_API_URL override (not in .env.example) - integration test reads X402_TESTNET_URL and skips when unset Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- README.md | 3 ++- .../plans/2026-07-14-x402-payment-support.md | 12 ++++----- .../specs/2026-07-14-x402-support-design.md | 18 ++++++------- examples/.env.example | 6 ++--- examples/README.md | 20 +++++++------- examples/ex.x402.active-addresses.ts | 26 +++++++++---------- src/types/config.ts | 3 +-- test/config.spec.ts | 8 +----- test/glassnode-api.spec.ts | 4 +-- test/x402.integration.spec.ts | 9 ++++--- 10 files changed, 52 insertions(+), 57 deletions(-) diff --git a/README.md b/README.md index 43ee9c8..08749ac 100644 --- a/README.md +++ b/README.md @@ -203,7 +203,8 @@ const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); - **Bulk metrics are not available over x402** — `callBulkMetric()` only works against the free `api.glassnode.com`. -- **Testnet:** target Base Sepolia by passing `apiUrl: 'https://x402.glassnode.tech'`. +- **Other endpoints:** target a non-default x402 endpoint (e.g. a testnet) by passing its URL as + `apiUrl`. - **Browser** signing is not supported yet (planned). ## Browser diff --git a/docs/superpowers/plans/2026-07-14-x402-payment-support.md b/docs/superpowers/plans/2026-07-14-x402-payment-support.md index 55f1d1f..51c5a19 100644 --- a/docs/superpowers/plans/2026-07-14-x402-payment-support.md +++ b/docs/superpowers/plans/2026-07-14-x402-payment-support.md @@ -13,7 +13,7 @@ - **Node ≥ 18**; developed on Node 24; pnpm is the package manager. - **TypeScript pinned to 6.x** (`^6.0.3`) — do NOT bump to 7 (breaks typescript-eslint). - **Core package stays `zod`-only at runtime.** `@x402/fetch`, `@x402/evm`, `viem` are **optional peer dependencies** (+ devDependencies for build/test). Never import them from any file other than `src/x402.ts`, and only via dynamic `import()` / `import type`. -- **Verified pricing/protocol (do not re-derive):** endpoints return `x402Version: 2`, scheme `exact`, USDC atomic amounts (6 decimals): metadata `/v1/metadata/*` = `10000` ($0.01), metrics `/v1/metrics/*` = `50000` ($0.05). Mainnet network `eip155:8453` (`https://x402.glassnode.com`), testnet `eip155:84532` / Base Sepolia (`https://x402.glassnode.tech`). +- **Verified pricing/protocol (do not re-derive):** endpoints return `x402Version: 2`, scheme `exact`, USDC atomic amounts (6 decimals): metadata `/v1/metadata/*` = `10000` ($0.01), metrics `/v1/metrics/*` = `50000` ($0.05). Mainnet network `eip155:8453` (`https://x402.glassnode.com`), testnet `eip155:84532` / Base Sepolia (`a testnet x402 endpoint`). - **Bulk is unsupported over x402** (`/bulk` 404s); no special handling — document only. - Every commit runs the Husky pre-commit hook (eslint + prettier + vitest related). Keep lint/format clean. - Follow existing code style (2-space, single quotes, semicolons; Prettier-enforced). @@ -71,7 +71,7 @@ describe('GlassnodeConfigSchema', () => { it('exposes the URL constants', () => { expect(DEFAULT_API_URL).toBe('https://api.glassnode.com'); expect(X402_API_URL).toBe('https://x402.glassnode.com'); - expect(X402_TESTNET_API_URL).toBe('https://x402.glassnode.tech'); + expect(X402_TESTNET_API_URL).toBe('a testnet x402 endpoint'); }); it('requires apiKey when x402 is not enabled', () => { @@ -128,12 +128,12 @@ describe('x402 mode', () => { const fetchFn = okFetch(); const api = new GlassnodeAPI({ x402: true, - apiUrl: 'https://x402.glassnode.tech', + apiUrl: 'a testnet x402 endpoint', fetch: fetchFn, }); await api.getMetricList(); expect(fetchFn).toHaveBeenCalledWith( - expect.stringContaining('https://x402.glassnode.tech/v1/metadata/metrics') + expect.stringContaining('a testnet x402 endpoint/v1/metadata/metrics') ); }); }); @@ -166,7 +166,7 @@ export const DEFAULT_API_URL = 'https://api.glassnode.com'; /** x402 (paid) Glassnode API base URL — Base mainnet. */ export const X402_API_URL = 'https://x402.glassnode.com'; /** x402 testnet base URL — Base Sepolia. */ -export const X402_TESTNET_API_URL = 'https://x402.glassnode.tech'; +export const X402_TESTNET_API_URL = 'a testnet x402 endpoint'; /** * Zod schema for Glassnode API configuration @@ -732,7 +732,7 @@ const mvrv = await api.callMetric('/market/mvrv', { a: 'BTC', i: '24h' }); - **Bulk metrics are not available over x402** — `callBulkMetric()` only works against the free `api.glassnode.com`. -- **Testnet:** target Base Sepolia by passing `apiUrl: 'https://x402.glassnode.tech'`. +- **Testnet:** target Base Sepolia by passing `apiUrl: 'a testnet x402 endpoint'`. - **Browser** signing is not supported yet (planned). ```` diff --git a/docs/superpowers/specs/2026-07-14-x402-support-design.md b/docs/superpowers/specs/2026-07-14-x402-support-design.md index 9d88294..c5266a8 100644 --- a/docs/superpowers/specs/2026-07-14-x402-support-design.md +++ b/docs/superpowers/specs/2026-07-14-x402-support-design.md @@ -7,7 +7,7 @@ ## Overview Glassnode now exposes a paid, per-call API over the [x402 payment protocol](https://x402.org) -at `https://x402.glassnode.com` (mainnet) and `https://x402.glassnode.tech` (testnet). Requests that +at `https://x402.glassnode.com` (mainnet) and `a testnet x402 endpoint` (testnet). Requests that require payment return `402 Payment Required` with a header-based challenge; an x402-aware client signs a USDC payment authorization and retries. @@ -71,13 +71,13 @@ core package. x402 tooling is opt-in via a subpath export and optional peer depe ### Module layout -| File | Change | Notes | -| ---------------------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -| `src/x402.ts` | **new** | Compiled to subpath export `glassnode-api/x402`. Exports `createX402Fetch` + types. **All** optional-dep usage is behind a dynamic `import()` here. | -| `src/types/config.ts` | edit | Add `x402?: boolean`; export `X402_API_URL = 'https://x402.glassnode.com'`, `X402_TESTNET_API_URL = 'https://x402.glassnode.tech'`, **and** a source-level `DEFAULT_API_URL = 'https://api.glassnode.com'` constant (today that literal only lives inside the Zod default). Change `apiUrl` to `z.string().url().optional()` (keep `.url()`, drop `.default()`) so "explicitly set" is detectable. Make `apiKey` `.optional()` and add object-level `.refine`s: (a) `apiKey` required when `x402` is falsy; (b) **`fetch` required when `x402` is `true`** (a plain fetch can't pay). | -| `src/glassnode-api.ts` | edit | Base-URL resolution (see below); change the `private apiKey` field type to `string \| undefined` and the `this.apiKey =` assignment accordingly. Request path, retries, and Zod validation otherwise unchanged. | -| `src/errors.ts` | edit | Add a friendly `402` message. | -| `src/index.ts` | unchanged | Deliberately does **not** re-export the helper, keeping the core entry `zod`-only. `X402_API_URL` and the `x402` config flag flow through the normal config exports (plain strings/booleans, no crypto). | +| File | Change | Notes | +| ---------------------- | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | +| `src/x402.ts` | **new** | Compiled to subpath export `glassnode-api/x402`. Exports `createX402Fetch` + types. **All** optional-dep usage is behind a dynamic `import()` here. | +| `src/types/config.ts` | edit | Add `x402?: boolean`; export `X402_API_URL = 'https://x402.glassnode.com'`, `X402_TESTNET_API_URL = 'a testnet x402 endpoint'`, **and** a source-level `DEFAULT_API_URL = 'https://api.glassnode.com'` constant (today that literal only lives inside the Zod default). Change `apiUrl` to `z.string().url().optional()` (keep `.url()`, drop `.default()`) so "explicitly set" is detectable. Make `apiKey` `.optional()` and add object-level `.refine`s: (a) `apiKey` required when `x402` is falsy; (b) **`fetch` required when `x402` is `true`** (a plain fetch can't pay). | +| `src/glassnode-api.ts` | edit | Base-URL resolution (see below); change the `private apiKey` field type to `string \| undefined` and the `this.apiKey =` assignment accordingly. Request path, retries, and Zod validation otherwise unchanged. | +| `src/errors.ts` | edit | Add a friendly `402` message. | +| `src/index.ts` | unchanged | Deliberately does **not** re-export the helper, keeping the core entry `zod`-only. `X402_API_URL` and the `x402` config flag flow through the normal config exports (plain strings/booleans, no crypto). | ### Core API @@ -234,7 +234,7 @@ Helper (mock the dynamic imports; no real crypto/network): Testnet integration test (opt-in, real network — **not** in default CI): -- A single end-to-end test against `https://x402.glassnode.tech` (Base Sepolia, `eip155:84532`) that makes +- A single end-to-end test against `a testnet x402 endpoint` (Base Sepolia, `eip155:84532`) that makes one real paid metric call and asserts a validated `200` response. - Gated behind an env var (e.g. `X402_TESTNET_PRIVATE_KEY`): skip when unset so unit runs and CI stay hermetic. Requires a Base-Sepolia wallet funded with test USDC. diff --git a/examples/.env.example b/examples/.env.example index a59d2a7..17a8946 100644 --- a/examples/.env.example +++ b/examples/.env.example @@ -2,9 +2,9 @@ # Used by the free-API examples (metadata.validation.ts, metric.dump.ts, bulk.market-cap.ts). GLASSNODE_API_KEY=your_api_key_here -# --- x402 paid-API example (x402.active-addresses.ts) --- -# No API key needed — you pay per call in USDC on Base. -X402_NETWORK=testnet # testnet (Base Sepolia) | mainnet (Base) +# --- x402 paid-API example (ex.x402.active-addresses.ts) --- +# No API key needed — you pay per call in USDC on Base (mainnet by default). +# To target a non-default x402 endpoint, set X402_API_URL yourself (not shown here). X402_ASSET=ETH # optional, asset symbol (default ETH) X402_PRIVATE_KEY=0xyour_funded_wallet_private_key X402_MAX_PAYMENT=0.06 # per-call USDC ceiling (metrics cost $0.05, metadata $0.01) diff --git a/examples/README.md b/examples/README.md index 309bbe4..a4057e4 100644 --- a/examples/README.md +++ b/examples/README.md @@ -53,26 +53,26 @@ npx ts-node metric.dump.ts Demonstrates the **x402 paid API** (no API key — you pay per call in USDC on Base): - Build a payment-capable `fetch` from a funded Base wallet (`createX402Fetch`) -- Hit the **metadata** endpoint ($0.01) to confirm the asset + `1h` are supported -- Fetch **active addresses** for the asset, last 1 month at `1h` resolution ($0.05) -- Switch between testnet (Base Sepolia) and mainnet (Base) via env +- Hit the **metadata** endpoint ($0.01) to confirm the asset + resolution are supported +- Fetch **active addresses** for the asset, last 1 month at `24h` resolution ($0.05) +- Defaults to **mainnet**; point at a different x402 endpoint by setting `X402_API_URL` yourself -Defaults to **ETH** (supported on testnet). Override with `X402_ASSET` — e.g. `SUI`, which is -only offered on **mainnet** for this metric (the metadata check will tell you and skip the paid -query if an asset isn't supported). +Defaults to **ETH** at `24h` (`active_count` rejects `1h`). Override the metric/asset/resolution +with `X402_METRIC` / `X402_ASSET` / `X402_RESOLUTION`; the metadata check skips the paid query if +the asset isn't supported. Set these in `.env` (see `.env.example`): ``` -X402_NETWORK=testnet # testnet | mainnet X402_ASSET=ETH # optional, asset symbol (default ETH) X402_PRIVATE_KEY=0xyour_funded_wallet_private_key X402_MAX_PAYMENT=0.06 # optional, per-call USDC ceiling +# X402_API_URL= # optional endpoint override (supply yourself; not committed) ``` -> **Wallet safety:** use a dedicated, funded-but-limited wallet — never a primary key. On testnet -> fund it with Base Sepolia test USDC; on mainnet it spends real USDC. `X402_MAX_PAYMENT` caps each -> call, not total spend. Start on `testnet`, then set `X402_NETWORK=mainnet`. +> **Wallet safety:** use a dedicated, funded-but-limited wallet — never a primary key. On mainnet it +> spends real USDC; on a testnet endpoint fund the wallet with Base Sepolia test USDC. `X402_MAX_PAYMENT` +> caps each call, not total spend. Run with: diff --git a/examples/ex.x402.active-addresses.ts b/examples/ex.x402.active-addresses.ts index 855c5f5..a950674 100644 --- a/examples/ex.x402.active-addresses.ts +++ b/examples/ex.x402.active-addresses.ts @@ -6,17 +6,20 @@ * 2. Hit the METADATA endpoint ($0.01) to confirm the metric supports the asset + resolution. * 3. Hit the METRIC endpoint ($0.05) for the last month of data at that resolution. * - * Defaults: ETH active addresses at 24h on testnet. + * Defaults to mainnet. Set X402_API_URL to point at a different x402 endpoint (e.g. a + * testnet); the same wallet/account works on either since payment schemes for both Base + * mainnet and Base Sepolia are registered. + * * Notes: * - active_count only allows 24h/1w/1month on the x402 endpoint — i=1h returns HTTP 403 * "Resolution 1h is not allowed" (the metadata `parameters.i` list can be broader than * what the endpoint actually serves). - * - Some assets (e.g. SUI) are only offered on mainnet for a given metric — the metadata - * check reports this and skips the paid query. + * - Some assets (e.g. SUI) may only be offered on certain endpoints for a given metric — + * the metadata check reports this and skips the paid query. * - X402_SKIP_METADATA=1 makes a single paid metric call (no metadata call first). * * Env (examples/.env): - * X402_NETWORK testnet | mainnet (default: testnet) + * X402_API_URL optional x402 endpoint override (default: built-in mainnet) * X402_METRIC metric path (default: /addresses/active_count) * X402_ASSET asset symbol (default: ETH) * X402_RESOLUTION 24h | 1w | 1month (default: 24h; 1h is not allowed) @@ -26,13 +29,13 @@ * * Run: npx ts-node ex.x402.active-addresses.ts */ -import { GlassnodeAPI, X402_TESTNET_API_URL } from '../src'; +import { GlassnodeAPI } from '../src'; import { createX402Fetch } from '../src/x402'; import { privateKeyToAccount } from 'viem/accounts'; import 'dotenv/config'; -const NETWORK = (process.env.X402_NETWORK ?? 'testnet').toLowerCase(); const PRIVATE_KEY = process.env.X402_PRIVATE_KEY; +const API_URL = process.env.X402_API_URL; // optional endpoint override; unset → built-in mainnet const MAX_PAYMENT = process.env.X402_MAX_PAYMENT ?? '0.06'; const METRIC = process.env.X402_METRIC ?? '/addresses/active_count'; const ASSET = (process.env.X402_ASSET ?? 'ETH').toUpperCase(); @@ -46,17 +49,14 @@ async function main(): Promise { 'X402_PRIVATE_KEY is required — set it in examples/.env to a funded Base wallet private key (0x...).' ); } - if (NETWORK !== 'testnet' && NETWORK !== 'mainnet') { - throw new Error(`X402_NETWORK must be "testnet" or "mainnet" (got "${NETWORK}").`); - } const account = privateKeyToAccount(PRIVATE_KEY as `0x${string}`); - console.log(`x402 ${NETWORK} — wallet ${account.address}`); + console.log(`x402 ${API_URL ? 'endpoint override' : 'mainnet'} — wallet ${account.address}`); console.log(`${METRIC} asset=${ASSET} i=${RESOLUTION} cap=$${MAX_PAYMENT}\n`); const api = new GlassnodeAPI({ - x402: true, // defaults to mainnet (https://x402.glassnode.com) - ...(NETWORK === 'testnet' ? { apiUrl: X402_TESTNET_API_URL } : {}), + x402: true, // defaults to the built-in mainnet endpoint + ...(API_URL ? { apiUrl: API_URL } : {}), fetch: await createX402Fetch({ account, maxPaymentPerCall: MAX_PAYMENT }), logger: console.log, }); @@ -85,7 +85,7 @@ async function main(): Promise { assets.length > 12 ? ', …' : '' }` ); - console.warn(' Set X402_ASSET= (or X402_NETWORK=mainnet) and re-run.'); + console.warn(' Set X402_ASSET= and re-run.'); return; } } diff --git a/src/types/config.ts b/src/types/config.ts index d568552..603e5e4 100644 --- a/src/types/config.ts +++ b/src/types/config.ts @@ -14,8 +14,7 @@ export type FetchFn = typeof fetch; export const DEFAULT_API_URL = 'https://api.glassnode.com'; /** x402 (paid) Glassnode API base URL — Base mainnet. */ export const X402_API_URL = 'https://x402.glassnode.com'; -/** x402 testnet base URL — Base Sepolia. */ -export const X402_TESTNET_API_URL = 'https://x402.glassnode.tech'; +// A testnet/staging x402 endpoint is not hardcoded here — pass its URL via the `apiUrl` config option. /** * Zod schema for Glassnode API configuration diff --git a/test/config.spec.ts b/test/config.spec.ts index 067c7fc..8897a84 100644 --- a/test/config.spec.ts +++ b/test/config.spec.ts @@ -1,16 +1,10 @@ import { describe, it, expect } from 'vitest'; -import { - GlassnodeConfigSchema, - DEFAULT_API_URL, - X402_API_URL, - X402_TESTNET_API_URL, -} from '../src/types/config'; +import { GlassnodeConfigSchema, DEFAULT_API_URL, X402_API_URL } from '../src/types/config'; describe('GlassnodeConfigSchema', () => { it('exposes the URL constants', () => { expect(DEFAULT_API_URL).toBe('https://api.glassnode.com'); expect(X402_API_URL).toBe('https://x402.glassnode.com'); - expect(X402_TESTNET_API_URL).toBe('https://x402.glassnode.tech'); }); it('requires apiKey when x402 is not enabled', () => { diff --git a/test/glassnode-api.spec.ts b/test/glassnode-api.spec.ts index b6befb7..97f1b8f 100644 --- a/test/glassnode-api.spec.ts +++ b/test/glassnode-api.spec.ts @@ -533,12 +533,12 @@ describe('GlassnodeAPI', () => { const fetchFn = okFetch(); const api = new GlassnodeAPI({ x402: true, - apiUrl: 'https://x402.glassnode.tech', + apiUrl: 'https://x402.example.test', fetch: fetchFn, }); await api.getMetricList(); expect(fetchFn).toHaveBeenCalledWith( - expect.stringContaining('https://x402.glassnode.tech/v1/metadata/metrics') + expect.stringContaining('https://x402.example.test/v1/metadata/metrics') ); }); }); diff --git a/test/x402.integration.spec.ts b/test/x402.integration.spec.ts index 6672055..3bef3c8 100644 --- a/test/x402.integration.spec.ts +++ b/test/x402.integration.spec.ts @@ -1,18 +1,19 @@ import { describe, it, expect } from 'vitest'; import { privateKeyToAccount } from 'viem/accounts'; import { GlassnodeAPI } from '../src/glassnode-api'; -import { X402_TESTNET_API_URL } from '../src/types/config'; import { createX402Fetch } from '../src/x402'; const KEY = process.env.X402_TESTNET_PRIVATE_KEY; +// The testnet endpoint URL is supplied via env (not hardcoded); skip if absent. +const TESTNET_URL = process.env.X402_TESTNET_URL; -// Requires a Base-Sepolia wallet funded with test USDC. Skipped unless the key is provided. -describe.skipIf(!KEY)('x402 testnet integration', () => { +// Requires a Base-Sepolia wallet funded with test USDC + the testnet endpoint URL. +describe.skipIf(!KEY || !TESTNET_URL)('x402 testnet integration', () => { it('pays for a metric on the testnet endpoint and returns validated data', async () => { const account = privateKeyToAccount(KEY as `0x${string}`); const api = new GlassnodeAPI({ x402: true, - apiUrl: X402_TESTNET_API_URL, + apiUrl: TESTNET_URL, fetch: await createX402Fetch({ account, maxPaymentPerCall: '0.06' }), }); From fab8ea356df3112c4d393ee314c19c5cd2938507 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 19:12:24 +0200 Subject: [PATCH 22/25] fix(errors): don't append raw JSON body when it has no message/error MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A 402 body of literal "null" (the x402 challenge lives in a header, body is null) was being appended to the error as "— null". readErrorDetail now only uses a string message/error field from valid JSON, and falls back to raw text only for non-JSON bodies. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- src/glassnode-api.ts | 10 +++++----- test/glassnode-api.spec.ts | 14 ++++++++++++++ 2 files changed, 19 insertions(+), 5 deletions(-) diff --git a/src/glassnode-api.ts b/src/glassnode-api.ts index a271182..65f8b08 100644 --- a/src/glassnode-api.ts +++ b/src/glassnode-api.ts @@ -115,16 +115,16 @@ export class GlassnodeAPI { private async readErrorDetail(response: Response): Promise { try { const text = await response.text(); - if (!text) return undefined; + if (!text.trim()) return undefined; try { const parsed = JSON.parse(text); const message = parsed?.message ?? parsed?.error; - if (typeof message === 'string' && message.trim()) return message.trim(); + // Valid JSON: only use a string message/error — never dump the raw JSON (e.g. "null"). + return typeof message === 'string' && message.trim() ? message.trim() : undefined; } catch { - // Body is not JSON — fall through to the raw text. + // Non-JSON body — return the raw text. + return text.trim().slice(0, 300); } - const trimmed = text.trim(); - return trimmed ? trimmed.slice(0, 300) : undefined; } catch { return undefined; } diff --git a/test/glassnode-api.spec.ts b/test/glassnode-api.spec.ts index 97f1b8f..5033516 100644 --- a/test/glassnode-api.spec.ts +++ b/test/glassnode-api.spec.ts @@ -383,6 +383,20 @@ describe('GlassnodeAPI', () => { await expect(api.getMetricList()).rejects.toThrow('unexpected parameter "foo"'); }); + it('does not append raw JSON when the body has no message/error field', async () => { + const fetchFn = vi.fn().mockResolvedValue({ + ok: false, + status: 402, + statusText: 'Payment Required', + text: vi.fn().mockResolvedValue('null'), + }); + const api = createApi(fetchFn); + + const err = (await api.callMetric('/market/mvrv', { a: 'BTC' }).catch((e) => e)) as Error; + expect(err.message).toContain('Payment required'); + expect(err.message).not.toContain('null'); + }); + it('should handle network errors', async () => { const fetchFn = vi.fn().mockRejectedValue(new TypeError('Failed to fetch')); const api = createApi(fetchFn); From d94812694ca5a30f04093396ddac900339f47b9c Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 19:15:35 +0200 Subject: [PATCH 23/25] docs(examples): default x402 asset to BTC; drop X402_ASSET from .env.example/docs X402_ASSET is an example-only override, so keep it in the script (default BTC) but remove it from .env.example and the README. .env.example documents X402_API_URL (mainnet) with a valid https URL and drops the contradictory "not shown" comment. Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- examples/.env.example | 5 ++--- examples/README.md | 14 ++++++-------- examples/ex.x402.active-addresses.ts | 4 ++-- 3 files changed, 10 insertions(+), 13 deletions(-) diff --git a/examples/.env.example b/examples/.env.example index 17a8946..0902fc5 100644 --- a/examples/.env.example +++ b/examples/.env.example @@ -3,8 +3,7 @@ GLASSNODE_API_KEY=your_api_key_here # --- x402 paid-API example (ex.x402.active-addresses.ts) --- -# No API key needed — you pay per call in USDC on Base (mainnet by default). -# To target a non-default x402 endpoint, set X402_API_URL yourself (not shown here). -X402_ASSET=ETH # optional, asset symbol (default ETH) +# No API key needed — you pay per call in USDC on Base. X402_PRIVATE_KEY=0xyour_funded_wallet_private_key X402_MAX_PAYMENT=0.06 # per-call USDC ceiling (metrics cost $0.05, metadata $0.01) +X402_API_URL=https://x402.glassnode.com # x402 endpoint (mainnet); point elsewhere to use another \ No newline at end of file diff --git a/examples/README.md b/examples/README.md index a4057e4..4cefd22 100644 --- a/examples/README.md +++ b/examples/README.md @@ -54,20 +54,18 @@ Demonstrates the **x402 paid API** (no API key — you pay per call in USDC on B - Build a payment-capable `fetch` from a funded Base wallet (`createX402Fetch`) - Hit the **metadata** endpoint ($0.01) to confirm the asset + resolution are supported -- Fetch **active addresses** for the asset, last 1 month at `24h` resolution ($0.05) -- Defaults to **mainnet**; point at a different x402 endpoint by setting `X402_API_URL` yourself +- Fetch **active addresses** for the asset (default **BTC**), last 1 month at `24h` ($0.05) +- Defaults to **mainnet**; point at a different x402 endpoint by setting `X402_API_URL` -Defaults to **ETH** at `24h` (`active_count` rejects `1h`). Override the metric/asset/resolution -with `X402_METRIC` / `X402_ASSET` / `X402_RESOLUTION`; the metadata check skips the paid query if -the asset isn't supported. +Defaults to BTC at `24h` (`active_count` rejects `1h`). The metric/asset/resolution are overridable +via env — see the script header; the metadata check skips the paid query if the asset isn't supported. Set these in `.env` (see `.env.example`): ``` -X402_ASSET=ETH # optional, asset symbol (default ETH) X402_PRIVATE_KEY=0xyour_funded_wallet_private_key -X402_MAX_PAYMENT=0.06 # optional, per-call USDC ceiling -# X402_API_URL= # optional endpoint override (supply yourself; not committed) +X402_MAX_PAYMENT=0.06 # optional, per-call USDC ceiling +X402_API_URL=https://x402.glassnode.com # x402 endpoint (mainnet); point elsewhere to use another ``` > **Wallet safety:** use a dedicated, funded-but-limited wallet — never a primary key. On mainnet it diff --git a/examples/ex.x402.active-addresses.ts b/examples/ex.x402.active-addresses.ts index a950674..90a4354 100644 --- a/examples/ex.x402.active-addresses.ts +++ b/examples/ex.x402.active-addresses.ts @@ -21,7 +21,7 @@ * Env (examples/.env): * X402_API_URL optional x402 endpoint override (default: built-in mainnet) * X402_METRIC metric path (default: /addresses/active_count) - * X402_ASSET asset symbol (default: ETH) + * X402_ASSET asset symbol (default: BTC) * X402_RESOLUTION 24h | 1w | 1month (default: 24h; 1h is not allowed) * X402_SKIP_METADATA 1 to skip the metadata call (default: 0) * X402_PRIVATE_KEY 0x-prefixed key of a funded Base wallet (required) @@ -38,7 +38,7 @@ const PRIVATE_KEY = process.env.X402_PRIVATE_KEY; const API_URL = process.env.X402_API_URL; // optional endpoint override; unset → built-in mainnet const MAX_PAYMENT = process.env.X402_MAX_PAYMENT ?? '0.06'; const METRIC = process.env.X402_METRIC ?? '/addresses/active_count'; -const ASSET = (process.env.X402_ASSET ?? 'ETH').toUpperCase(); +const ASSET = (process.env.X402_ASSET ?? 'BTC').toUpperCase(); const RESOLUTION = process.env.X402_RESOLUTION ?? '24h'; const SKIP_METADATA = process.env.X402_SKIP_METADATA === '1'; const ONE_MONTH_SECONDS = 30 * 24 * 60 * 60; From b645cffa965a1115fe1a95c68f250054e5029673 Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 19:23:05 +0200 Subject: [PATCH 24/25] docs(readme): document x402 config option and error-detail surfacing Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- README.md | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/README.md b/README.md index 08749ac..2783125 100644 --- a/README.md +++ b/README.md @@ -90,16 +90,17 @@ const data = await api.callMetric('/market/price_usd_close', { `new GlassnodeAPI(config)` -| Option | Type | Default | Description | -| ------------ | ----------------------------------------------- | --------------------------- | ------------------------------------------------------- | -| `apiKey` | `string` | — (**required**) | Your Glassnode API key | -| `apiUrl` | `string` | `https://api.glassnode.com` | Base URL for the API | -| `logger` | `(message: string, ...args: unknown[]) => void` | — | Callback for debug logging (e.g. `console.log`) | -| `fetch` | `typeof fetch` | `globalThis.fetch` | Custom fetch implementation (custom headers, testing…) | -| `maxRetries` | `number` | `0` | Retries for retryable errors (`429`, `5xx`) | -| `retryDelay` | `number` | `1000` | Base delay in ms between retries (doubles each attempt) | - -The config is validated at construction time with Zod — an invalid config (e.g. an empty `apiKey`) throws immediately. +| Option | Type | Default | Description | +| ------------ | ----------------------------------------------- | --------------------------- | ---------------------------------------------------------------------------------------- | +| `apiKey` | `string` | — (required unless `x402`) | Your Glassnode API key | +| `apiUrl` | `string` | `https://api.glassnode.com` | Base URL for the API | +| `x402` | `boolean` | `false` | Route through the paid x402 endpoint (see [Paid calls with x402](#paid-calls-with-x402)) | +| `logger` | `(message: string, ...args: unknown[]) => void` | — | Callback for debug logging (e.g. `console.log`) | +| `fetch` | `typeof fetch` | `globalThis.fetch` | Custom fetch implementation (or an x402-wrapped fetch) | +| `maxRetries` | `number` | `0` | Retries for retryable errors (`429`, `5xx`) | +| `retryDelay` | `number` | `1000` | Base delay in ms between retries (doubles each attempt) | + +The config is validated at construction time with Zod — an invalid config (e.g. an empty `apiKey`) throws immediately. When `x402` is enabled, `apiKey` is optional but a payment-capable `fetch` is required. Failed requests throw a `GlassnodeApiError` whose message includes the server's error detail (also on `.detail`). ## Methods From 72875ed9e0a741823cc581738705a0818ebddd1b Mon Sep 17 00:00:00 2001 From: planadecu Date: Wed, 15 Jul 2026 19:33:25 +0200 Subject: [PATCH 25/25] chore(deps): pin optional x402 peer deps to the v2 major (^2.18.0) Per PR review: >=2.18.0 would allow a breaking @x402/* v3; ^2.18.0 pins to the v2 API the helper targets (matches viem's ^2.48.11). Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_011Cf2DgwfRTWWuKtEhUeuZq --- package.json | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/package.json b/package.json index 873e195..9487d37 100644 --- a/package.json +++ b/package.json @@ -86,8 +86,8 @@ "zod": "^4.4.3" }, "peerDependencies": { - "@x402/fetch": ">=2.18.0", - "@x402/evm": ">=2.18.0", + "@x402/fetch": "^2.18.0", + "@x402/evm": "^2.18.0", "viem": "^2.48.11" }, "peerDependenciesMeta": {