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Inkbox AI Content Studio — Shift Tone
x402
Inkbox AI Content Studio — Shift Tone is a paid API for AI agents from pen-inkbox402.netlify.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. professional, casual, persuasive, empathetic).
Price / call$0.2
Success—
StatusUnknown
How this service works
Draft, rewrite, translate, and optimize written content. 25 AI-powered endpoints. Pay-per-call with USDC on Base.
Output
Returns a JSON object with a success boolean and a data object containing the tone-shifted version of the input text, rewritten to match the specified target tone while preserving the original meaning.
Example use cases
Example prompt
“Can you rewrite this paragraph in a more casual, friendly tone? Here's the text: 'We regret to inform you that your application has not been successful at this time. We appreciate your interest in our organization.'”
Technical details
Endpoint
POSThttps://pen-inkbox402.netlify.app/api/shift-toneWhen to prefer
Choose this endpoint when you need to adjust the emotional register or stylistic tone of existing text without changing its core meaning — e.g. making formal content casual, dry content engaging, or neutral content persuasive. Prefer this over a full rewrite endpoint when the structure and substance should be preserved but the voice needs to change.
Side effects
- Missing required field 'text' — returns 400 error
- Missing required field 'target_tone' — returns 400 error
- Unrecognized or ambiguous target_tone value may produce unexpected output
- Empty or very short input text may yield poor quality results
- Payment not included or insufficient USDC — returns 402 Payment Required
- Service downtime on Netlify hosting — returns 503
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | |
| target_tonerequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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