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ArgonautWorks US Weather API
x402
ArgonautWorks US Weather API is a paid API for AI agents from argonaut-us-weather-api.vercel.app, paid per call via x402, $0.0012/call, status unknown (last checked 2026-09-14).
Returns a seven-day NWS forecast and active weather alerts for a given U.S. latitude/longitude coordinate
Price / call$0.0012
Success—
StatusUnknown
How this service works
A compact authoritative U.S. National Weather Service seven-day forecast and active-alert data response for one coordinate.
Output
A JSON object containing a forecast array of named time periods (e.g. Tonight, Thursday, Thursday Night) each with a short forecast description, the echoed back location coordinates, and an array of any active NWS weather alerts for that area. The forecast spans approximately seven days of periods.
Example use cases
Outdoor event weather planning
“I'm organizing an outdoor concert in Chicago at 41.8827 latitude and -87.6233 longitude — can you pull the NWS 7-day forecast and check if there are any active weather alerts for that area this week?”
Severe weather alert monitoring
“Check the current NWS active weather alerts for Miami at 25.7617 latitude and -80.1918 longitude — I need to know if there are any warnings or watches in effect right now.”
Construction site daily briefing
“Pull the 7-day National Weather Service forecast for our job site at 40.7128 latitude, -74.0060 longitude in New York — we need to know which days look clear enough for outdoor work.”
Technical details
Endpoint
POSThttps://argonaut-us-weather-api.vercel.app/api/v1/forecastWhen to prefer
Choose this endpoint when you need official, authoritative U.S. government (NWS) weather forecast data for a specific coordinate within the United States, especially when active severe weather alerts are also needed in the same call. It is ideal for US-only use cases requiring a compact 7-day outlook without needing to chain multiple API calls. Prefer it over commercial weather APIs when official NWS data is required for compliance, emergency planning, or government-aligned workflows.
Side effects
- Coordinates outside the contiguous US or US territories may return no data or an error
- Invalid latitude/longitude values will result in a failed lookup
- NWS upstream API outages may cause timeouts or empty responses
- Coordinates over open ocean with no NWS grid coverage will fail
- Malformed POST body missing required lat/lon fields will return an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"forecast": {
"periods": [
{
"name": "Tonight",
"short_forecast": "Mostly Clear"
}
]
},
"location": {
"latitude": 38.8895,
"longitude": -77.0353
},
"active_alerts": []
}
}Tags
x402
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