{
  "dataset": "state-of-the-agentic-web",
  "record": {
    "id": "mcp-spec-version",
    "metric": "MCP current spec revision",
    "metric_family": "protocol-maturity",
    "measures_pillar": "/protocols",
    "entity_measured": "MCP",
    "value": "2025-11-25",
    "unit": "spec date (JSON-RPC 2.0)",
    "date": "2025-11",
    "period": "2026-Q2",
    "figure_kind": "cited",
    "source": "https://modelcontextprotocol.io/specification/2025-11-25",
    "trend": "up",
    "last_verified": "2026-06-15"
  }
}