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Polymarket Markets Feed
x402
Polymarket Markets Feed is a paid API for AI agents from mcp.gapup.io, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-18).
Returns live Polymarket prediction markets ranked by volume, with implied probability, liquidity, and end date, with optional free-text filtering.
Price / call$0.008
Success—
StatusUnknown
How this service works
Live Polymarket prediction markets ranked by volume, with implied probability, liquidity and end date. Optional free-text filter.
Output
A ranked list of live Polymarket prediction markets including the market question, implied probability (%), current liquidity, trading volume, and end date. Optionally includes Polymarket's original raw fields. Markets are sorted by volume descending, filtered by the query string if provided.
Example use cases
Track election prediction odds
“Pull up the top 20 Polymarket markets about the 2024 US election, ranked by volume — I want to see the current implied probabilities.”
Research crypto market sentiment
“What are the most liquid Polymarket prediction markets related to Bitcoin or Ethereum right now? Show me the implied probability and end dates.”
Monitor Fed rate cut probability
“Find any Polymarket markets about Federal Reserve interest rate decisions and tell me what probability the market is pricing in.”
Technical details
Endpoint
POSThttps://mcp.gapup.io/api/v1/call/polymarket_markets?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time prediction market data from Polymarket specifically, including implied probabilities and liquidity ranked by volume. Prefer this over general news or sentiment APIs when you want crowd-sourced probabilistic forecasts on specific events. Best when you need filterable, structured market data rather than raw blockchain queries.
Side effects
- No markets match the query filter — returns empty list
- Polymarket API unavailable — upstream error returned
- Limit parameter out of range (must be 1–100) — validation error
- Rate limit exceeded due to high call frequency
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| async | boolean | If true, returns a job_id immediately (<200ms) instead of waiting for the result. Poll the result with job_result(job_id). Use for slow tools to avoid client timeouts. |
| limit | integer | Maximum markets (default 20) |
| query | string | Free-text filter on the market question |
| includeRaw | boolean | Include Polymarket's original fields (default false) |
| includeClosed | boolean | Include settled markets (default false) |
Tags
x402
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