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Prediction Market Event (Multi-Outcome) – Polymarket
x402
Prediction Market Event (Multi-Outcome) – Polymarket is a paid API for AI agents from www.x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns a ranked probability list of all outcomes for a multi-outcome Polymarket event (e.g. all candidates in an election) given the event slug.
Price / call$0.01
Success—
StatusUnknown
How this service works
A full multi-outcome Polymarket event (e.g. every candidate in an election) as one ranked probability list, by exact event slug -- instead of stitching together each candidate's individual binary market via /prediction-markets search. Polymarket-only. $0.01/call.
Output
A ranked list of all outcomes for the specified Polymarket event, each with its current implied probability, ordered from most to least likely. Includes event-level metadata such as the event title and slug. Replaces the need to call individual binary markets and stitch them together manually.
Example use cases
Election odds overview for research
“Give me the current Polymarket probabilities for every candidate in the 2024 US presidential election — I need the full ranked list from the event slug 'presidential-election-winner-2024'.”
Monitoring a multi-outcome policy vote
“What are the odds on each possible outcome for the next Fed interest rate decision on Polymarket? Fetch the full ranked list from the event slug 'fed-rate-decision-march-2025'.”
Comparing candidates in a foreign election
“Show me all the ranked probabilities for who becomes the next UK Prime Minister on Polymarket using the event slug 'next-uk-prime-minister'.”
Technical details
Endpoint
GEThttps://www.x402financialdata.com/prediction-market-event/:slugWhen to prefer
Use this endpoint when you need a single, unified probability ranking across all outcomes of a multi-outcome Polymarket event — such as elections with many candidates — and want to avoid manually fetching and aggregating individual binary markets via a search endpoint. Prefer this over the /prediction-markets search route when you already know the exact event slug and need a clean ranked list in one call.
Side effects
- Invalid or misspelled event slug returns a 404 or empty result
- Event slug refers to a binary market rather than a multi-outcome event, returning incomplete data
- Polymarket event has been resolved or delisted, returning stale or no data
- Rate limiting or payment failure results in a 402 or 429 error
- Slug format mismatch (e.g. using spaces instead of hyphens) causes lookup failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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