Félix Malfait
4f4f723ed0
## Summary Adding `https://api.twenty.com/mcp` as an MCP server in Claude fails with `Couldn't reach the MCP server` before OAuth can start. Two independent bugs cause this: 1. **Missing path-aware well-known route.** The latest MCP spec instructs clients to probe `/.well-known/oauth-protected-resource/mcp` before `/.well-known/oauth-protected-resource`. Only the root path was registered, so the path-aware request fell through to `ServeStaticModule` and returned the SPA's `index.html` with HTTP 200. Strict clients (Claude.ai) tried to parse it as JSON and gave up. Fixed by registering both paths on the same handler. 2. **Stale protocol version.** Server advertised `2024-11-05`, which predates Streamable HTTP. We've implemented Streamable HTTP (SSE response format was added in #19528), so bumped to `2025-06-18`. Reproduction before the fix: ``` $ curl -s -o /dev/null -w "%{http_code} %{content_type}\n" https://api.twenty.com/.well-known/oauth-protected-resource/mcp 200 text/html; charset=UTF-8 ``` After the fix this returns `application/json` with the RFC 9728 metadata document. Note: this is separate from #19755 (host-aware resource URL for multi-host deployments). ## Test plan - [x] `npx jest oauth-discovery.controller` — 2/2 tests pass, including one asserting both routes are registered - [x] `npx nx lint:diff-with-main twenty-server` passes - [ ] After deploy, `curl https://api.twenty.com/.well-known/oauth-protected-resource/mcp` returns JSON (not HTML) - [ ] Adding `https://api.twenty.com/mcp` in Claude reaches the OAuth authorization screen 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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Why Twenty
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CRMs are too expensive, and users are trapped. Companies use locked-in customer data to hike prices. It shouldn't be that way.
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Personalize layouts with filters, sort, group by, kanban and table views
Customize your objects and fields
Create and manage permissions with custom roles
Automate workflow with triggers and actions
Emails, calendar events, files, and more
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