ClearMarket

{
  "protocolVersion": "0.3.0",
  "name": "ClearMarket",
  "description": "Reference layer for prediction markets. Judges whether a Kalshi or Polymarket price can be trusted: every market carries a Resolution Clarity Grade (A/B/C), the committed resolution source is named with provenance where one exists (the absence is graded too \u2014 that gap is the point), and the same question across venues is linked by a venue-independent question_id with live cross-venue prices (also_on). Read-only reference data; not trading advice.",
  "url": "https://api.clearmarket.fyi/a2a",
  "preferredTransport": "JSONRPC",
  "additionalInterfaces": [
    {
      "url": "https://api.clearmarket.fyi/a2a",
      "transport": "JSONRPC"
    }
  ],
  "provider": {
    "organization": "ClearMarket",
    "url": "https://clearmarket.fyi"
  },
  "version": "1.0.0",
  "documentationUrl": "https://clearmarket.fyi/for-data/",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "securitySchemes": {},
  "security": [],
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "market_trust_lookup",
      "name": "Market trust lookup",
      "description": "Given a market id (CM-MKT-\u2026), a Kalshi ticker, or a market URL (Kalshi URLs resolve; for Polymarket pass the conditionId): the Resolution Clarity Grade, the committed resolution source and its provenance, settlement status, latest price, and cross-venue twins.",
      "tags": [
        "prediction-markets",
        "resolution",
        "provenance",
        "reference-data"
      ],
      "examples": [
        "KXFED-27APR-T3.50",
        "What is the resolution source for CM-MKT-DWQBW1ZTC5?"
      ]
    },
    {
      "id": "event_search",
      "name": "Graded event search",
      "description": "Free-text search across graded prediction-market events on Kalshi and Polymarket. Returns per-event grade mix, venues, prices, and the canonical CM ids to cite.",
      "tags": [
        "prediction-markets",
        "search",
        "events"
      ],
      "examples": [
        "fed rate decision",
        "iran nuclear deal"
      ]
    }
  ]
}