# Whatchuneed Tempest Expand

> Whatchuneed Tempest Expand is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-13).

Expands or processes a natural language input string through the Tempest AI endpoint, returning a structured result object

## Facts

- Endpoint: POST https://whatchuneed.vercel.app/api/tempest/expand
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/whatchuneed-tempest-expand-1c4be2dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vpjYNeqDEG5SkI1vxY5lH

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-expand-1c4be2dc -d '<json body>'
```

Example prompt: Can you use the Tempest expand endpoint to take this short description — 'renewable energy trends in 2025' — and expand it into a detailed, structured response?

## When to prefer this

Choose this endpoint when you need to expand, elaborate, or process a natural language input string via a pay-per-call AI model and want a structured result object back without managing your own LLM infrastructure. Ideal for agents that need lightweight, on-demand text expansion at $0.20 USDC per call via the x402 protocol.

## Known failure modes

- Missing required 'input' field returns a validation error
- Empty or malformed input string may produce an empty or low-quality result
- Payment failure via x402 protocol blocks the call before execution
- Upstream Tempest service unavailability returns a non-200 status
- Rate limiting or quota exceeded may return an error status

## 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 containing a 'result' field with the processed/expanded response data and a 'status' string indicating success or failure of the operation.

## 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-expand-1c4be2dc/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)