API Evangelist enhancements for the Official MCP Registry API

overlay: 1.0.0
info:
  title: API Evangelist enhancements for the Official MCP Registry API
  version: 1.0.0
extends: ../openapi/agentic-ai-foundation-mcp-registry-openapi.yaml
x-provenance:
  generated: '2026-08-30'
  method: derived
  source: openapi/agentic-ai-foundation-mcp-registry-openapi.yaml + live probes of registry.modelcontextprotocol.io
  note: >-
    The upstream specification at https://registry.modelcontextprotocol.io/openapi.yaml is stored verbatim
    and never mutated. Every correction below is expressed as an overlay action so the original stays
    byte-identical to what the provider serves.
actions:
  - target: $
    description: >-
      The published document declares no servers[] block at all, so a generated client has no base URL.
      The live host that serves this document is the base URL.
    update:
      servers:
        - url: https://registry.modelcontextprotocol.io
          description: Official MCP Registry, production (observed serving this document, HTTP 200, 2026-08-30)
  - target: $.components
    description: >-
      Eight operations declare security [{bearer: []}] but components.securitySchemes is absent from the
      document, so the scheme name resolves to nothing. Declare it as the HTTP bearer JWT the registry's
      /auth/* token-exchange endpoints actually issue.
    update:
      securitySchemes:
        bearer:
          type: http
          scheme: bearer
          bearerFormat: JWT
          description: >-
            Registry JWT obtained from one of the /v0/auth/* or /v0.1/auth/* token-exchange endpoints
            (GitHub OAuth access token, GitHub OIDC token, generic OIDC ID token, DNS signature, or HTTP
            signature).
  - target: $.info
    description: Add contact and licence metadata the published info block omits.
    update:
      contact:
        name: Model Context Protocol registry maintainers
        url: https://github.com/modelcontextprotocol/registry/issues
      x-governance:
        hosted-by: Agentic AI Foundation (Linux Foundation)
        project: Model Context Protocol
  - target: $.paths['/v0/servers']
    description: >-
      The /v0 path family duplicates the /v0.1 family operation-for-operation. Mark the older prefix so
      consumers can tell which of the two identical surfaces is current.
    update:
      x-api-evangelist-note: >-
        Duplicate of /v0.1/servers. Both prefixes are live; /v0.1 is the newer of the two version
        families published in the same document. The provider's own documentation is the authority on
        which is preferred — this overlay makes no deprecation claim.