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Polyform Weather Travel Risk
x402
Polyform Weather Travel Risk is a paid API for AI agents from api.polyform.org, paid per call via x402, $0.015/call, status unknown (last checked 2026-10-10).
Returns a LOW/MODERATE/HIGH/SEVERE weather risk judgment for a US coordinate on a given date (within 7 days), with reasons, derived from NWS forecasts and active alerts
Price / call$0.015
Success—
StatusUnknown
How this service works
Judgment call for a US coordinate and date (within 7 days): LOW/MODERATE/HIGH/SEVERE weather risk with reasons, built from NWS forecast plus active alerts. JSON.
Output
A JSON object containing the requested date, a risk classification (LOW, MODERATE, HIGH, or SEVERE), and an array of human-readable reasons explaining the rating, such as active severe thunderstorm watches or high precipitation probability.
Example use cases
Road trip route safety check
“I'm driving to Denver, Colorado (39.7392° N, 104.9903° W) on Thursday — can you pull the weather risk level and tell me if it's HIGH or SEVERE so I know whether to postpone?”
Outdoor event go/no-go decision
“We're hosting an outdoor concert in Austin, Texas (30.2672° N, 97.7431° W) next Sunday. What's the weather risk rating — LOW through SEVERE — and what are the main reasons?”
Field crew deployment safety
“Before we send the crew to the job site near Baton Rouge, Louisiana (30.4515° N, 91.1871° W) on Wednesday, what's the NWS-based weather risk level and why?”
Technical details
Endpoint
GEThttps://api.polyform.org/v1/weather/travel-risk?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a single, pre-interpreted risk verdict (not raw forecast data) for a specific US location and date within the next 7 days. It synthesizes NWS forecast data and active alerts into one actionable signal, saving agents the work of parsing multiple NWS endpoints and applying judgment logic. Prefer it over raw weather APIs when the agent needs to make a go/no-go or risk-tier decision rather than display detailed meteorological data.
Side effects
- Coordinate outside the US — NWS only covers US territories
- Date more than 7 days in the future — beyond supported forecast window
- Invalid or malformed lat/lon values — bad request error
- NWS data temporarily unavailable — upstream outage may cause service errors
- Missing required query parameters (lat, lon, date) — returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"date": "2026-08-27",
"risk": "HIGH",
"reasons": [
"Severe Thunderstorm Watch active",
"80% precip"
]
}
}Tags
x402
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