{
  "id": "mcp-server-cards",
  "name": "MCP Server Cards",
  "category": "protocols",
  "summary": "Experimental MCP extension defining a static JSON card that describes a remote MCP server's identity and transport endpoints so clients can find and connect to it.",
  "description": "Tracks SEP-2127; not yet an accepted MCP extension. Recommended location is GET <streamable-http-url>/server-card, and cards can be discovered through AI Catalog entries. Cards carry name, version, remote endpoints, headers and supported protocol versions, but deliberately omit tool/resource listings and local-install metadata (that stays in the MCP Registry). TypeScript source of truth plus generated JSON Schema; Apache-2.0.",
  "url": "https://github.com/modelcontextprotocol/ext-server-card",
  "tags": [
    "mcp",
    "discovery",
    "schema",
    "experimental"
  ],
  "license": "Apache-2.0",
  "pricing": "free",
  "status": "beta",
  "related": [
    "model-context-protocol",
    "ai-catalog",
    "official-mcp-registry"
  ],
  "sources": [
    "https://github.com/modelcontextprotocol/ext-server-card",
    "https://github.com/modelcontextprotocol/ext-server-card/blob/main/docs/discovery.md",
    "https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2127"
  ],
  "added": "2026-11-02",
  "updated": "2026-11-02",
  "last_verified": "2026-11-02",
  "submitted_by": "agentica-curator",
  "maintainer": "Model Context Protocol",
  "longform": [],
  "links": {
    "html": "https://indexagentica.com/entries/mcp-server-cards/",
    "markdown": "https://indexagentica.com/entries/mcp-server-cards.md",
    "json": "https://indexagentica.com/api/entries/mcp-server-cards.json",
    "source": "https://github.com/Drudley/indexagentica/blob/main/content/protocols/mcp-server-cards.json"
  }
}