# Tempest Retone — AI Tone Rewriter

> Tempest Retone — AI Tone Rewriter is a paid API for AI agents from tumpest.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-15).

Rewrites a given text in a specified target tone (e.g. professional, casual, empathetic) while preserving the original meaning

## Facts

- Endpoint: POST https://tumpest.vercel.app/api/retone
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tempest-retone-ai-tone-rewriter-03ae99d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Lv0LVrrExAe3Me69hjlwv

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-retone-ai-tone-rewriter-03ae99d4 -d '<json body>'
```

Example prompt: Rewrite the following paragraph in a warm and empathetic tone: 'We regret to inform you that your application has not been successful at this time. We appreciate your interest in our company.'

## When to prefer this

Use this endpoint when you need to adapt existing text to a different emotional register or communication style without changing the underlying message. Ideal for adjusting customer communications, marketing copy, emails, or social media posts to fit different audiences or brand voices. Prefer this over a general rewrite endpoint when tone-shifting is the primary transformation goal.

## Known failure modes

- Missing required 'text' field returns 400 error
- Missing required 'target_tone' field returns 400 error
- Empty or extremely short text may produce low-quality retoning
- Unrecognized or ambiguous tone descriptors may yield unexpected results
- Payment failure (USDC not delivered) returns 402 Payment Required
- Rate limiting or server overload may return 429 or 503

## How this service works

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

## Output

A JSON object with a 'success' boolean and a 'data' object containing the retoned version of the input text adjusted to match the specified target tone

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text",
  "target_tone"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text to retone"
  },
  "target_tone": {
   "type": "string",
   "description": "Desired tone"
  }
 }
}
```

## 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-retone-ai-tone-rewriter-03ae99d4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tumpest.vercel.app](https://www.zero.xyz/host/tumpest.vercel.app/llms.txt)