OAuth Client ID Metadata Document

datatracker.ietf.org/doc/draft-ietf-oauth-client-id-metadata-document

The Client ID Metadata Document extension defines a mechanism for an OAuth client to host its metadata at a URL to be able to work with authorization servers without prior registration.

Implementations

Testing Tools

• client.dev
• example-app.com/client
• Local Authorization Server for Testing
• CIMD Reader

More resources

• Identerati Office Hours - Episode 149.5: OAuth Client ID Metadata Document (Oct 2025, youtube.com)
• What is a Client ID Metadata Document (CIMD)? (Oct 2025, descope.com)
• Evolving OAuth Client Registration in the Model Context Protocol (Aug 2025, modelcontextprotocol.io)
• OAuth for the Open Web (Jul 2018, aaronparecki.com)