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US Weather Alerts by State (NWS)
x402
US Weather Alerts by State (NWS) is a paid API for AI agents from agent-evidence.thx93.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).
Returns active National Weather Service alerts for a given US state, including event type, affected area, severity level, and official instructions.
Price / call$0.01
Success—
StatusUnknown
How this service works
Verify a claim or fact check a statement against public web sources: send a question and up to 5 URLs, get cited evidence - passages that support, contradict or fail to settle it. Claim verification with a citation for every excerpt: source URL, retrieval time, content hash. Never charges when nothing is retrieved. Free to evaluate: the `sample` tool returns one real response at no cost, so you can judge the output before paying for your own question.
Output
Returns a JSON object containing the state code, total alert count, and an array of active alerts each with: event name (e.g. Flood Advisory), affected area name, severity level (e.g. Minor, Moderate, Severe, Extreme), a description of the event, and official NWS instructions for the public.
Example use cases
Emergency travel safety check
“Before I drive through Texas tomorrow, can you pull up any active NWS weather alerts for the state so I know if there are severe storms, floods, or anything dangerous on the roads?”
Real estate risk monitoring
“Can you check if there are any active weather alerts in Louisiana? I want to know the severity and what areas are affected before we make a decision on that property.”
Event planning weather safety
“We have an outdoor event in California this weekend — can you check the current National Weather Service alerts for CA and tell me how serious they are and what the official guidance says?”
Technical details
Endpoint
POSThttps://agent-evidence.thx93.dev/v1/weather/alerts?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time, official NWS weather alert data scoped to a specific US state, including structured severity and instructions. Prefer this over generic weather APIs when you need official emergency alerts rather than forecasts or current conditions, or when you need actionable public-safety instructions tied to a specific weather event.
Side effects
- Invalid or unrecognized state code returns empty alerts array or error
- No active alerts for a state returns count of 0 with empty alerts array
- NWS data source unavailable may cause upstream fetch failure
- Malformed request body (missing required fields) returns 4xx error
- Payment failure (x402) returns 402 Payment Required before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"state": "CA",
"alerts": [
{
"area": "San Francisco",
"event": "Flood Advisory",
"severity": "Minor",
"description": "Minor flooding expected.",
"instructions": "Do not drive through flooded roadways."
}
]
}
}Tags
x402
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