feat(ai-gateway): draft update for MCP 2026-07-28 support

[gperanich]

Description

Fixes #7082

Preview Links

• https://deploy-preview-7083--kongdeveloper.netlify.app/ai-gateway/entities/ai-mcp-server/
• https://deploy-preview-7083--kongdeveloper.netlify.app/ai-gateway/mcp-version-support/

Checklist

• Tested how-to docs. If not, note why here.
• All pages contain metadata.
• Any new docs link to existing docs.
• All autogenerated instructions render correctly (API, decK, Konnect, Kong Manager).
• Style guide (capitalized gateway entities, placeholder URLs) implemented correctly.
• Every page has a description entry in frontmatter.
• Add new pages to the product documentation index (if applicable).

[netlify]

✅ Deploy Preview for kongdeveloper ready!

Name	Link
🔨 Latest commit	39c7696
🔍 Latest deploy log	https://app.netlify.com/projects/kongdeveloper/deploys/6a9983b72257a200074541d9
😎 Deploy Preview	https://deploy-preview-7083--kongdeveloper.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
🤖 Make changes	Run an agent on this branch

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[lmilan]

@gperanich I reviewed this and pushed some changes, mainly:

• Renamed the new file to MCP version support, in case we need to document more versions in the future
• Changed occurrences of MCP protocol to just MCP
• Combined the “What changed in the spec” and “How AI Gateway supports 2026-07-28” sections to focus how the changes impact AI Gateway (I removed the areas that didn’t seem to have a direct impact on AI Gateway users, let me know if I should add them back)
• Removed an FAQ that duplicated content in the body of the page

Can you take a look and let me know if that looks OK to you? Thanks!