# Tempest AI Content Engine — Pulse Endpoint

> Tempest AI Content Engine — Pulse Endpoint is a paid API for AI agents from trempest.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Analyzes or processes a text input through one of Tempest's AI-powered content operations (compose, rewrite, translate, or refine) and returns structured results.

## Facts

- Endpoint: POST https://trempest.vercel.app/api/pulse
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tempest-ai-content-engine-pulse-endpoint-6872bc7d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nhqSp7oUmohpkHX-IMegm

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 tempest-ai-content-engine-pulse-endpoint-6872bc7d -d '<json body>'
```

Example prompt: Run this draft blog intro through Tempest's AI pulse endpoint and give me the improved version: 'AI is changing how we work, but most people don't know where to start.'

## When to prefer this

Choose this endpoint when you need a pay-per-call AI content transformation on a per-text basis, especially if your workflow benefits from a USDC micropayment model via x402 and you want access to a suite of 25 AI content operations without a subscription commitment.

## Known failure modes

- Missing required `text` field returns a validation error
- Empty or very short text may yield low-quality or empty output
- Payment not completed in USDC causes 402 Payment Required response
- Rate limits or quota exhaustion may cause 429 errors
- Malformed JSON body returns 400 Bad Request
- Service unavailability on Vercel hosting causes 503 errors

## How this service works

Compose, rewrite, translate, and refine content at scale. 25 AI-powered endpoints. Pay-per-call with USDC on Tempo.

## Output

Returns a JSON object with a `success` boolean and a `data` object containing the AI-processed result of the submitted text — likely refined, analyzed, rewritten, or translated content depending on the endpoint's active mode.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text to analyze"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tempest-ai-content-engine-pulse-endpoint-6872bc7d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from trempest.vercel.app](https://www.zero.xyz/host/trempest.vercel.app/llms.txt)