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market-resolution
x402
market-resolution is a paid API for AI agents from x402.fenixfoundry.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Checks whether a prediction market event has settled on Polymarket or Kalshi and returns the resolved outcome, resolution time, source, and market URL.
Price / call$0.005
Success—
StatusUnknown
How this service works
Did it happen? Check whether a prediction market event has settled on Polymarket or Kalshi and get the resolved outcome, resolution time, source and market URL. A cheap oracle for agents that must verify a real-world outcome before acting.
Output
Returns a JSON object indicating whether the market is resolved (boolean), the settled outcome string (e.g. 'Yes' or 'No'), the ISO timestamp of resolution, the resolution source venue, the market URL, and a confidence score (0–1) that the returned market matches the queried event. Unresolved markets return resolved: false with a scheduled close time if available.
Example use cases
Conditional payout on election outcome
“Before releasing the escrow funds, check if the 2026 US midterm election winner market has resolved on Kalshi and tell me the settled outcome.”
Fact-check a news claim against markets
“Someone is claiming the Fed cut rates in March 2025 — has that Polymarket event actually resolved, and if so, what was the outcome?”
Automated agent decision gating
“I need to know if the 'SpaceX Starship orbital flight in 2025' market on Polymarket has settled yet — what was the result and when did it resolve?”
Technical details
Endpoint
GEThttps://x402.fenixfoundry.com/resolutionWhen to prefer
Use this endpoint when an agent needs to verify whether a real-world binary event has officially settled according to prediction market venues (Polymarket or Kalshi), especially as a cheap on-demand oracle before triggering conditional logic, payouts, or downstream actions. Prefer over generic web search when you need a structured, machine-readable resolution with a confidence score and canonical source URL rather than free-text news results.
Side effects
- No matching market found for the natural-language query — returns low or zero confidence score with null outcome
- Market exists but has not yet settled — resolved: false with closeTime instead of resolvedAt
- Ambiguous query matches multiple markets — returns best-guess with lower confidence score
- Invalid venue/id combination — 400-level error or null result
- Venue API unavailability — upstream timeout or service error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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