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Weather Station Lookup for Prediction Market Temperature Contracts
x402
Weather Station Lookup for Prediction Market Temperature Contracts is a paid API for AI agents from weather-x402.linholiday.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).
Resolves a Kalshi or Polymarket temperature prediction-market ticker or event slug to the correct weather station, strike details, and settlement window needed to trade or settle the contract.
Price / call$0.01
Success—
StatusUnknown
How this service works
Paid calls cost 0.01-0.02 USDC on eip155:8453 via x402 (exact scheme). Free: /stations, /preview/*, /health, /, /openapi.json, /llms.txt, /.well-known/x402.
Output
A JSON object containing the matched market details: city, date, temperature kind (high/low), units, venue (kalshi/polymarket), strike value and bracket range in °F, the settlement ICAO station name and timezone, CLI code for NOAA data retrieval, the precise UTC day window for settlement, and a 'station_trap' warning if Kalshi and Polymarket use different stations for the same city.
Example use cases
Kalshi temperature contract station resolution
“I'm trading KXHIGHNY-26OCT21-B88.5 on Kalshi — can you find me the exact ICAO weather station that settles this contract, the temperature bracket range, and the local day window it covers?”
Polymarket vs Kalshi station discrepancy check
“I'm looking at the highest-temperature-in-chicago Polymarket event — does it settle on the same weather station as the equivalent Kalshi contract, or are they different? I need both station codes.”
City-name temperature market lookup
“Find the Kalshi settlement weather station and strike details for high temperature markets in Miami — I just have the city name, not the ticker.”
Technical details
Endpoint
GEThttps://weather-x402.linholiday.workers.dev/market-station?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to programmatically resolve Kalshi or Polymarket temperature contract identifiers to the authoritative weather station used for settlement — especially when avoiding the 'station trap' of Kalshi and Polymarket referencing different stations for the same city. Prefer this over generic weather APIs when the goal is prediction-market accuracy rather than general forecasting.
Side effects
- Unrecognized ticker or slug returns zero matches
- City name ambiguity without venue filter may return multiple or wrong results
- Unsupported market types (non-temperature contracts) return no results
- Payment failure (insufficient USDC balance on Base/eip155:8453) blocks the paid call
- Malformed query string returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"query": "KXHIGHCHI-26OCT21-B58.5",
"matches": 1,
"results": [
{
"city": "Chicago",
"date": "2026-10-21",
"kind": "high",
"units": "F (whole degrees)",
"venue": "kalshi",
"strike": {
"type": "bracket",
"value": 58.5,
"range_f": [
58,
59
]
},
"station": {
"tz": "America/Chicago",
"icao": "KMDW",
"name": "Chicago/Midway Intl"
},
"cli_code": "CLIMDW",
"day_window": {
"end": "2026-10-22T06:00:00.000Z",
"basis": "local_standard_time_day",
"start": "2026-10-21T06:00:00.000Z"
},
"station_trap": "The Polymarket market for Chicago settles on a different station: KORD."
}
]
}
}Tags
x402
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