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Tool detail

markets

Lists prediction markets Quotient tracks across Polymarket International, Polymarket US, Kalshi and HL Outcomes, with venue odds, volume, resolution date and forecast recency.

Categories: Prediction markets, Market prices

Use when

  • find current odds for a prediction market on Polymarket, Kalshi or HL Outcomes
  • browse prediction markets by sport league or topic
  • check how fresh a prediction market's forecast data is
  • compare venue odds across prediction-market platforms

Not for

  • not for placing bets or trades - read-only market data
  • not a single-market lookup by ID - returns filtered lists

Inputs

GET query params (all optional): venue, league, topic, sort (enums), changed_within (int 1-168h), max_forecast_age (int, default 48).

Admitted input schema

{
  "type": "object",
  "properties": {
    "changed_within": {
      "type": "integer",
      "minimum": 1,
      "maximum": 168
    },
    "league": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "enum": [
        "atp",
        "wta",
        "cfb",
        "nfl",
        "mlb",
        "wnba",
        "nba",
        "nhl",
        "mls",
        "epl",
        "ufc",
        "pga",
        "dpwt",
        "lpga",
        "f1"
      ]
    },
    "max_forecast_age": {
      "type": "integer",
      "minimum": 1,
      "maximum": 9007199254740991,
      "default": 48
    },
    "sort": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "enum": [
        "updated_desc",
        "volume_desc",
        "signal_count_desc"
      ]
    },
    "topic": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096
    },
    "venue": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096,
      "enum": [
        "polymarket",
        "polymarket_us",
        "kalshi",
        "hl_outcomes"
      ],
      "description": "Prediction-market venue key: polymarket (Polymarket International), polymarket_us (Polymarket US), kalshi, or hl_outcomes (HL Outcomes, Hyperliquid's outcome markets; covered sports game-winner markets only). HL Outcomes marketKeys contain # (hl_outcomes:#<outcome id>); percent-encode it as %23 in paths and query strings."
    }
  },
  "required": [],
  "additionalProperties": false
}

Endpoint

Method
GET
URL
https://quotient-api-gateway.onrender.com/api/v1/markets

Payment

Protocol
x402
Listed price
0.005 USDC per request on Base
Payment method
exact
Network
eip155:8453
Asset
0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Record
GET https://quotient-api-gateway.onrender.com/api/v1/markets
Retrieved
2026-09-30T20:37:07.382Z
Catalog file SHA-256
6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built
2026-09-30T22:31:58.034Z