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Tempest Retone — AI Tone Adjustment Endpoint
x402
Tempest Retone — AI Tone Adjustment Endpoint is a paid API for AI agents from tempost.vercel.app, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-15).
Rewrites a piece of text to match a specified target tone (e.g. formal, casual, empathetic, confident) while preserving core meaning.
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 specified target tone while preserving the original meaning.
Example use cases
Professionalizing a casual draft
“I wrote this Slack message to a client but it sounds too casual: 'Hey, just checking in, did you get a chance to look at that doc?' Can you retone it to sound more formal and polished?”
Softening a blunt customer reply
“This support response sounds too harsh: 'That's not something we support and never will.' Can you rewrite it in an empathetic and helpful tone so it doesn't upset the customer?”
Making marketing copy sound more confident
“Can you take this product description — 'We think our tool might be useful for small teams' — and rewrite it with a bold, confident tone that really sells it?”
Technical details
Endpoint
POSThttps://tempost.vercel.app/api/retoneWhen to prefer
Choose this endpoint when you need to adjust the emotional register or formality level of existing text without changing its core content. Ideal for polishing drafts, adapting communications for different audiences, or standardizing tone across large volumes of text. Prefer this over a full rewrite endpoint when structure should be preserved but voice needs adjustment.
Side effects
- Missing required `text` or `target_tone` fields returns a validation error
- Ambiguous or unsupported tone values may produce unexpected output
- Very long texts may time out or be truncated
- Payment failure (insufficient USDC) will block the request
- Network or Vercel deployment downtime may cause 503 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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