# Whatchuneed Tempest Signal Endpoint

> Whatchuneed Tempest Signal Endpoint is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-10-21).

Processes a free-text input string and returns a result object via the Tempest Signal API, likely for weather, signal, or environmental data lookups

## Facts

- Endpoint: POST https://whatchuneed.vercel.app/api/tempest/signal?utm_source=zero.xyz
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/whatchuneed-tempest-signal-endpoint-5b0eae69
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XXfUG2cEUk2AuyhvAIguQ

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 whatchuneed-tempest-signal-endpoint-5b0eae69 -d '<json body>'
```

Example prompt: Query the Tempest signal endpoint with 'current wind speed and direction at my station' and return the result data.

## When to prefer this

Use this endpoint when you need to query the Tempest signal service specifically with a free-text input and receive structured result data, particularly for weather or environmental signal data available through the whatchuneed platform's pay-per-call model.

## Known failure modes

- Vague or malformed input string may yield an empty or unhelpful result object
- Payment failure (402) if USDC balance is insufficient
- Endpoint may return a non-specific result if the input doesn't match Tempest's expected query format
- Service unavailability on the Vercel deployment could return a 500 error
- Unknown what specific signal domains or parameters are accepted, leading to null results

## How this service works

320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.

## Output

Returns a JSON object with a 'result' field containing the response data and a 'status' field indicating success or failure of the signal query.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "Request input"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "Response data"
  },
  "status": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/whatchuneed-tempest-signal-endpoint-5b0eae69/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from whatchuneed.vercel.app](https://www.zero.xyz/host/whatchuneed.vercel.app/llms.txt)