{
 "acronym": "MCP Registry",
 "adoption": {
  "level": "unmeasured",
  "by": null,
  "probe_run": null
 },
 "aliases": [
  "MCP Registry"
 ],
 "analog": "a package registry (npm) for tool servers",
 "audience": [
  "agent-builder",
  "platform"
 ],
 "collisions": [],
 "discovery": {
  "mechanism": "Registry API listing endpoint",
  "path": "GET /v0.1/servers"
 },
 "dispute": null,
 "evidence": [
  {
   "claim": "The MCP Registry working group charter describes the official MCP Registry as in preview with its API frozen at v0.1 and lists 'Registry API v1 GA: Ideating, no target date'; the server listing endpoint is GET /v0.1/servers, and the server.json schema is being aligned with the Server Card (charter changelog entry 2026-07-30).",
   "label": "VERIFIED",
   "url": "https://modelcontextprotocol.io/community/working-groups/registry",
   "date": "2026-07-30",
   "retrieved_at": "2026-10-15T22:21:19Z",
   "source_type": "issuer",
   "http_status": 200,
   "content_sha256": "ed322054636ca39e9828acb238d5fa99fb59f3bb05122679893b7fe70b4a213c",
   "detector": "phase-a@2026-10-15"
  },
  {
   "claim": "The registry source is published in the modelcontextprotocol/registry repository (checked 2026-10-15).",
   "label": "VERIFIED",
   "url": "https://github.com/modelcontextprotocol/registry/",
   "date": "2026-10-15",
   "retrieved_at": "2026-10-15T22:21:21Z",
   "source_type": "standards-body",
   "http_status": 200,
   "content_sha256": "9ac1aadeb8ae4412681c2468229217565eb6c792282ba4669d72692dca118641",
   "detector": "phase-a@2026-10-15"
  },
  {
   "claim": "v1.8.1 released 2026-08-06",
   "label": "VERIFIED",
   "url": "https://github.com/modelcontextprotocol/registry/releases/tag/v1.8.1",
   "date": "2026-08-06",
   "retrieved_at": "2026-10-16T00:32:32Z",
   "source_type": "issuer",
   "http_status": 200,
   "content_sha256": "c08fbeb8dbc4fafb4184c24ede91d2b9fcf0a46d1f0066d90837a36985da1764",
   "detector": "github@1.0"
  }
 ],
 "form": "endpoint",
 "governance": "MCP Registry Working Group",
 "group": null,
 "history": [
  {
   "date": "2026-10-15",
   "note": "curated update 2026-10-15"
  },
  {
   "date": "2026-10-16",
   "note": "use-case tags (auto)"
  },
  {
   "date": "2026-10-16",
   "note": "version v1.8.1 (watcher)"
  },
  {
   "date": "2026-10-16",
   "note": "version label restored to 'API v0.1 (frozen, preview)'; the repository tag v1.8.1 is the registry server software release, not the Registry API version, so the GitHub watch no longer drives version"
  }
 ],
 "id": "mcp-registry",
 "implementation": "developer-trial",
 "last_verified": "2026-10-19",
 "name": "Official MCP Registry",
 "native_status": "Preview; API frozen at v0.1; \"Registry API v1 GA: Ideating, no target date\"",
 "origin": {
  "org": "Model Context Protocol project (MCP Registry Working Group)",
  "date": null
 },
 "pairs_with": [
  "mcp",
  "mcp-server-cards",
  "oasf",
  "ai-catalog-well-known-file"
 ],
 "part_of": null,
 "parties": [
  "agent-registry",
  "agent-agent"
 ],
 "phase": "candidate",
 "probe": {
  "method": "GET",
  "path": "{registry_origin}/v0.1/servers",
  "parse": "A JSON response listing MCP servers (server.json entries) indicates a registry implementing the v0.1 API",
  "on_absent": "404 or a non-JSON response means the origin does not host a v0.1 MCP Registry API"
 },
 "question": "Where can an agent or client find a catalogue of public MCP servers, and how do sub-registries mirror it?",
 "scope": "general",
 "spec_url": "https://modelcontextprotocol.io/community/working-groups/registry",
 "step": "discover",
 "summary_md": "The Official MCP Registry is the catalogue and API of public MCP servers run by the MCP Registry Working Group; sub-registries can mirror it [1]. Clients list servers with `GET /v0.1/servers`, and the registry's server.json schema is being aligned with the MCP Server Card [1].\n\nThe charter marks the registry as a preview with the API frozen at v0.1. It states `Registry API v1 GA: Ideating, no target date`, so no general-availability date exists [1]. The code lives in the modelcontextprotocol/registry repository [2].\n\nThe registry does not describe how an individual server behaves; that is the job of the Server Card and the MCP specification itself. This record was added on 2026-10-15 and has not yet been probed.",
 "track": "linux-foundation",
 "use_cases": [
  "discover-my-api",
  "expose-tools-to-agents",
  "describe-agent-capabilities"
 ],
 "version": {
  "label": "API v0.1 (frozen, preview)",
  "date": null
 },
 "watch": [
  {
   "type": "github",
   "repo": "modelcontextprotocol/registry",
   "mode": "release",
   "version": false
  },
  {
   "type": "page",
   "url": "https://modelcontextprotocol.io/community/working-groups/registry",
   "selector": "main",
   "cadence": "weekly"
  }
 ],
 "prerequisites": [
  "mcp"
 ],
 "freshness": "current"
}