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
- Directory
- Coinbase x402 Bazaar
- 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