Oauth 2 0 Authorization Server With Pkce Support

via “oauth 2.0 authorization server with pkce support”

A hosted version of the Everything server - for demonstration and testing purposes, hosted at https://example-server.modelcontextprotocol.io/mcp

Unique: Implements OAuth as a separate architectural module (AuthModule) that can run in-process or remotely, with explicit token validator abstraction (InternalTokenValidator vs ExternalTokenValidator) enabling zero-downtime auth server upgrades and horizontal scaling via Redis-backed session storage without coupling auth logic to MCP protocol implementation.

Decouples authentication from MCP protocol handling (unlike monolithic implementations), enabling independent scaling and security updates while supporting both development convenience (internal mode) and production isolation (external mode).