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Polymarket Prediction Markets Feed
x402
Polymarket Prediction Markets Feed is a paid API for AI agents from store.agentexchange.work, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Fetches live prediction market listings from Polymarket, filterable by keyword, sortable by volume or liquidity, returning implied probabilities and trading data.
Price / call$0.01
Success—
StatusUnknown
How this service works
Live real-money prediction-market odds from Polymarket: top markets by 24h volume with implied probabilities, price moves, dollar volume, and liquidity. Search by keyword (bitcoin, election, fed, world cup, AI). For trading, forecasting, news, and event-resolution agents — one paid call instead of integrating the exchange API yourself.
Output
Returns a JSON array of prediction market objects, each with a question string, end date, 24-hour trading volume, implied yes probability (as a decimal), and source attribution (e.g. 'polymarket'), plus a total count of results.
Example use cases
Example prompt
“Show me the top 10 Polymarket prediction markets about Bitcoin right now, sorted by volume — I want to see the implied yes probabilities and how much has traded in the last 24 hours.”
Technical details
Endpoint
GEThttps://store.agentexchange.work/markets/prediction?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs real-time crowd-sourced probability estimates for future events, especially crypto price targets, political outcomes, or macro economic events sourced from Polymarket. Prefer over general news or sentiment APIs when you need a numeric probability and trading volume as a signal of conviction. Ideal for agents doing research, summarizing market sentiment, or informing decisions with prediction market data.
Side effects
- No markets found matching keyword — returns empty markets array with count 0
- Invalid sort value — may return default sort behavior or 400 error
- top parameter out of range (>25 or <1) — may be clamped or rejected
- Payment failure — 402 response if USDC balance insufficient or x402 header missing
- Upstream Polymarket data unavailable — 500 or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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