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Tempest Retone — AI Tone Rewriter
x402
Tempest Retone — AI Tone Rewriter is a paid API for AI agents from tempest-2zzx.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-14).
Rewrites a given piece of text to match a specified target tone (e.g. formal, casual, persuasive, empathetic)
Price / call$0.2
Success—
StatusUnknown
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 retoned version of the input text, rewritten to match the requested target tone while preserving the original meaning.
Example use cases
Softening a customer complaint response
“Rewrite this support reply in a more empathetic and understanding tone: 'Your refund request has been denied because it falls outside our policy window.'”
Professionalizing a casual draft
“I wrote this quickly and it sounds too informal — can you retone it to be professional and polished? 'Hey, just wanted to check if you guys got my order? It's been a while lol.'”
Making marketing copy more persuasive
“Take this bland feature description and rewrite it in a persuasive, exciting tone: 'The app lets users track their daily steps and set weekly fitness goals.'”
Technical details
Endpoint
POSThttps://tempest-2zzx.vercel.app/api/retoneWhen to prefer
Choose this endpoint when you need to adapt existing text to a different emotional register or voice without changing its core meaning — ideal for customer communications, marketing copy, and content repurposing. Prefer this over a full rewrite endpoint when the structure and facts should stay the same but the tone needs adjustment.
Side effects
- Missing required 'text' field returns validation error
- Missing required 'target_tone' field returns validation error
- Empty or very short text may produce low-quality output
- Ambiguous or unrecognized tone names may yield inconsistent results
- Payment failure (insufficient USDC) returns 402 error
- Rate limiting or server overload may return 5xx errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Text to retone |
| target_tonerequired | string | Desired tone |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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