# NWS Alert Lookup (x402-tools)

> NWS Alert Lookup (x402-tools) is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-13).

Returns a paid National Weather Service (NWS) alert data response for the nwsalert SKU via x402 micropayment protocol.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/nwsalert?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nws-alert-lookup-x402-tools-f29418e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_T3O-piEGLq2NPLxamYNQg

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-alert-lookup-x402-tools-f29418e4
```

Example prompt: Can you fetch the current NWS weather alert data — I'm happy to pay the $0.02 USDC fee via x402 to get the live alert JSON.

## When to prefer this

Choose this endpoint when you need NWS weather alert data and are operating in an x402 micropayment environment using OpenX402 as facilitator. It is ideal for agents that can programmatically authorize $0.02 USDC EIP-3009 payments per call and need structured JSON alert responses. Not suitable if you need free weather alerts, a different facilitator, or high-volume bulk fetching without per-call payment overhead.

## Known failure modes

- HTTP 402 returned when no valid x402 payment header is provided — includes EIP-3009 payment challenge extras
- Invalid or expired payment authorization causes rejection
- Unsupported facilitator (only OpenX402 accepted) causes failure
- Malformed properties parameter may return unexpected results
- Network or upstream NWS data unavailability

## How this service works

Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.

## Output

Returns a JSON object containing the SKU identifier ('nwsalert'), a descriptive note, the price ($0.02), and the alert title ('NWS Alert'). With valid x402 payment, returns live NWS alert data; without payment, returns HTTP 402 with EIP-3009 payment extras.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "nwsalert",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "NWS Alert"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nws-alert-lookup-x402-tools-f29418e4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openclawproductions.com](https://www.zero.xyz/host/openclawproductions.com/llms.txt)