# NWS Area Alerts

> NWS Area Alerts is a paid API for AI agents from fittings.sh, paid per call via x402, $0.00496/call, status unknown (last checked 2026-09-14).

Returns all active National Weather Service watches, warnings, and advisories for a US state, territory, marine area, or forecast zone, with counts by event type.

## Facts

- Endpoint: GET https://fittings.sh/v1/nws/area-alerts
- Price: $0.00496/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nws-area-alerts-cc223103
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s0ZGMNoiNp6ZLu0mv5OLI

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nws-area-alerts-cc223103
```

Example prompt: What NWS watches, warnings, and advisories are currently active in Texas? Show me up to 10, filtered to Severe and Extreme severity only.

## When to prefer this

Use this endpoint when you need a comprehensive snapshot of all active NWS weather alerts for an entire US state, territory, marine area, or specific forecast zone in a single call. It is especially useful for safety monitoring, travel planning, or alerting workflows where you need event counts by type and optional severity or event-type filtering. Prefer it over scraping NWS web pages or polling RSS feeds when you need structured, filterable JSON output.

## Known failure modes

- Invalid or unrecognized area/zone code returns an error or empty result set
- Both 'area' and 'zone' omitted may return an error requiring at least one
- Unrecognized event name filter returns empty results silently
- NWS upstream API outage causes service unavailability
- Limit out of range (outside 1-50) returns a validation error

## How this service works

Every active National Weather Service watch, warning and advisory for a whole US state, territory, marine area or forecast zone, with a count per event type.

## Output

A list of active NWS alerts for the requested area or zone, each including the event name, severity, urgency, affected zones, onset and expiration times, headline, and description, plus a summary count grouped by event type.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "area": {
       "type": "string",
       "description": "US state or territory postal code, or a marine area code such as GM. Use this or zone."
      },
      "zone": {
       "type": "string",
       "description": "NWS forecast zone id, e.g. TXZ096 or TXC201. Use this or area."
      },
      "event": {
       "type": "string",
       "description": "Optional exact event name filter, e.g. Tornado Warning"
      },
      "limit": {
       "type": "number",
       "description": "Maximum alerts returned, 1-50, default 20"
      },
      "severity": {
       "type": "string",
       "description": "Optional filter: Extreme, Severe, Moderate, Minor, Unknown"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nws-area-alerts-cc223103/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fittings.sh](https://www.zero.xyz/host/fittings.sh/llms.txt)