CTX7-884: OAuth Support for MCP #1176
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enesgules
reviewed
Jan 7, 2026
enesgules
reviewed
Jan 7, 2026
enesgules
reviewed
Jan 7, 2026
enesgules
reviewed
Jan 7, 2026
enesgules
reviewed
Jan 7, 2026
enesgules
reviewed
Jan 7, 2026
enesgules
reviewed
Jan 7, 2026
enesgules
approved these changes
Jan 8, 2026
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This PR adds OAuth 2.0 authentication support to the MCP server, enabling secure access control for MCP clients.
Changes
New OAuth-protected endpoint (/mcp/oauth) - Requires authentication via JWT tokens
JWT validation - Validates tokens against the authorization server's JWKS endpoint with caching (1 hour TTL)
OAuth Protected Resource Metadata - Implements RFC 9728 discovery endpoint at /.well-known/oauth-protected-resource
WWW-Authenticate header - Returns resource metadata URL to help clients discover the authorization server
Backward compatibility - The existing /mcp endpoint remains available for anonymous access
New Files
packages/mcp/src/lib/jwt.ts- JWT validation utilities using jose libraryConfiguration
AUTH_SERVER_URL- Authorization server URL (default: https://context7.com)RESOURCE_URL- Resource server URL for metadata