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FiatDock Polymarket Prediction Markets Feed
x402
FiatDock Polymarket Prediction Markets Feed is a paid API for AI agents from fiatdock.com, paid per call via x402, $0.0045/call, status unknown (last checked 2026-10-11).
Returns live Polymarket prediction market data — outcome prices (implied probabilities), 24h and total volume, liquidity, closing dates, and links — searchable by topic or ranked by 24h volume.
Price / call$0.0045
Success—
StatusUnknown
How this service works
Live Polymarket markets: each outcome's price (the market's implied probability), 24h and total volume, liquidity, closing date and link. Search by topic (bitcoin, fed rates, election…) or send {} for the markets with the most 24h volume. A search with no open market is 404 and not charged. Pay-per-call via x402.
Output
A list of open Polymarket markets matching the query (or top by 24h volume if no query), each including: outcome names with their current prices (implied probabilities 0–1), 24h volume, total volume, available liquidity, market closing/resolution date, and a direct link to the market on Polymarket.
Example use cases
Election odds research
“What are the current Polymarket odds on the US presidential election? Show me the top 5 markets by 24h volume with their implied probabilities and closing dates.”
Fed rate decision tracking
“Find me open Polymarket prediction markets about Fed interest rate decisions — I want to see the implied probabilities and how liquid those markets are.”
Top active markets dashboard
“Give me the 10 most traded Polymarket markets in the last 24 hours — whatever topics are hottest — with their outcome prices and total volume.”
Technical details
Endpoint
GEThttps://fiatdock.com/v1/markets/prediction?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time Polymarket prediction market data — current implied probabilities, volume, and liquidity — for any topic. Ideal for agents doing event probability research, market sentiment analysis, or tracking what traders are betting on. Prefer this over general news APIs when you want crowd-sourced probability estimates with financial skin in the game. The 404-is-free guarantee makes broad topic searches risk-free.
Side effects
- 404 returned (and not charged) when a search query matches no open Polymarket markets
- Query too long (>120 characters) returns a validation error
- Limit out of range (not 1–50) returns a validation error
- Payment failure via x402 if USDC balance is insufficient
- Polymarket data temporarily unavailable causing upstream errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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