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Prediction Market Detail
x402
Prediction Market Detail is a paid API for AI agents from www.x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Fetches current odds, volume, and close date for a single prediction market by exact ID from Polymarket or Kalshi
Price / call$0.01
Success—
StatusUnknown
How this service works
A single prediction market's current odds, volume, and close date by exact ID -- from Polymarket (slug) or Kalshi (ticker), whichever you pass as `source`. Pairs with /prediction-markets: search there first to find an ID, then re-fetch it here for the freshest odds without re-searching. $0.01/call.
Output
Returns the current odds (probabilities for each outcome), total trading volume, market close date, and other details for the specified prediction market from either Polymarket (by slug) or Kalshi (by ticker).
Example use cases
Track Fed rate decision odds
“What are the current odds on the Kalshi market KXFEDDECISION-27DEC-H26? I want the latest probability and close date.”
Monitor election prediction market
“Fetch the freshest odds and volume for the Polymarket market 'us-presidential-election-winner-2024' — I need to know the current yes probability.”
Pre-trade odds check
“I found a Kalshi ticker earlier — KXBITCOIN-25JAN-50K — can you pull the current odds and how much volume it has before I decide whether to trade?”
Technical details
Endpoint
GEThttps://www.x402financialdata.com/prediction-market/:source/:market_idWhen to prefer
Use this endpoint when you already have a specific Polymarket slug or Kalshi ticker and need the freshest odds without re-running a search. Prefer this over the search endpoint when you want to avoid paying for search again or need a quick real-time refresh of a known market's data.
Side effects
- Invalid or unknown market_id returns a 404 or error response
- Wrong source enum for the given ID (e.g. passing a Kalshi ticker with source=polymarket) returns no data or error
- Market has closed and data may be stale or unavailable
- Network/API downtime from underlying Polymarket or Kalshi data feeds
- Malformed slug or ticker format causes a bad request error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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