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x402-factory Market Resolution Lookup
x402
x402-factory Market Resolution Lookup is a paid API for AI agents from x402-factory.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns the final outcome, per-venue settlement details, source link, and blended probability 24h before resolution for a resolved prediction market; returns 404 for unresolved markets.
Price / call$0.01
Success—
StatusUnknown
How this service works
Final outcome and settlement details for a resolved market — Outcome, per-venue settlement, source link where available, and the blended probability 24h before resolution (calibration signal). Unresolved markets return 404 with a pointer to the live probability endpoint.
Output
A JSON object containing: outcome (YES, NO, or numeric string), resolved_at timestamp, an array of per-venue settlement objects (each with venue name from kalshi/polymarket, outcome, and resolved_at), an optional source_url linking to resolution evidence, and final_p_24h_before (blended probability 0–1 from 24 hours before resolution as a calibration signal). Unresolved markets return a 404 error with a pointer to the live probability endpoint.
Example use cases
Verify political event market resolution
“Did the prediction market for 'us-presidential-election-2024' resolve YES or NO, and how did it settle on Kalshi vs Polymarket?”
Calibration check for forecasting model
“I'm evaluating my forecasting model — can you pull the final resolution and the 24-hour-before blended probability for the market slug 'fed-rate-cut-march-2025' so I can compare my model's prediction to the market's calibration signal?”
Confirm weather event market outcome
“Did the 'hurricane-landfall-florida-2024' market resolve YES? I want the settled outcome, the source link if there is one, and which venues confirmed it.”
Technical details
Endpoint
GEThttps://x402-factory.com/v1/resolution/:slugWhen to prefer
Use this endpoint when you need the definitive, settled outcome of a prediction market — including cross-venue settlement verification and a calibration benchmark (final_p_24h_before). Prefer this over the live probability endpoint when the market is already resolved and you need a ground-truth record for backtesting, auditing, or verification workflows. If the market is still open, this endpoint will 404 and redirect you to the live probability endpoint.
Side effects
- 404 if the market slug is unresolved (with pointer to live probability endpoint)
- 404 if the market slug does not exist
- Invalid slug format returns validation error (slug must match ^[a-z0-9]+(?:-[a-z0-9]+)*$)
- Partial per_venue data if one venue (e.g. Polymarket) did not list the market
- Missing source_url if no authoritative resolution link was available
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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