René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Implement SEP-990: Enterprise Managed Authorization (Extension)","articleBody":"This is a tracking issue for implementation of [SEP-990](https://github.com/modelcontextprotocol/modelcontextprotocol/issues/990).\n\n### Summary\n\nThis extension enables secure authorization of MCP clients within enterprise environments by leveraging existing enterprise Identity Provider (IdP) infrastructure. The Python SDK needs to implement client-side OAuth flows including OpenID Connect/SAML integration, RFC8693 Token Exchange to obtain Identity Assertion JWT Authorization Grants (ID-JAG), and RFC7523 JWT Bearer Grant flows. Server-side implementations need JWT validation including signature verification, claims validation, and replay prevention. This extension provides seamless single sign-on for users while enabling enterprise administrators to control which MCP servers can be accessed and enforce policies through existing IdP infrastructure.\n\n### Related Issues \u0026 PRs\n\n- **Implementation PRs**: n/a\n- **Related PRs**: n/a\n- **Related Issues**: n/a","author":{"url":"https://github.com/felixweinberger","@type":"Person","name":"felixweinberger"},"datePublished":"2025-11-07T18:32:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/1593/python-sdk/issues/1593"}