# Inkbox AI Content Studio — Shift Tone

> Inkbox AI Content Studio — Shift Tone is a paid API for AI agents from inkinbox402.netlify.app, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-14).

Rewrites a piece of text to match a specified target tone (e.g. formal, casual, playful, professional)

## Facts

- Endpoint: POST https://inkinbox402.netlify.app/api/shift-tone
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/inkbox-ai-content-studio-shift-tone-be22c15d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KeFTaFQbFeR70mFi8d6TJ

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 inkbox-ai-content-studio-shift-tone-be22c15d -d '<json body>'
```

Example prompt: Can you shift the tone of this paragraph to sound more casual and friendly: 'We regret to inform you that your application did not meet our current requirements and has not been approved at this time.'

## When to prefer this

Use this endpoint when you need to adapt existing text to a different register or tone without changing the core meaning — ideal for repurposing content for different audiences (e.g. formal to casual, dry to playful, aggressive to empathetic). Prefer this over a full rewrite endpoint when the content is largely good but the voice or register needs adjusting.

## Known failure modes

- Missing required 'text' field returns a validation error
- Missing required 'target_tone' field returns a validation error
- Unrecognized or unsupported tone value may produce unexpected output or an error
- Payment of 0.08 USDC on Base not provided results in 402 Payment Required
- Empty text string may return an error or empty result
- Overly long text input may be truncated or rejected

## How this service works

Draft, rewrite, translate, and optimize written content. 25 AI-powered endpoints. Pay-per-call with USDC on Base.

## Output

A JSON object containing a success boolean and a data object with the rewritten text adjusted to match the requested target tone.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text",
  "target_tone"
 ],
 "properties": {
  "text": {
   "type": "string"
  },
  "target_tone": {
   "type": "string"
  }
 }
}
```

## 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/inkbox-ai-content-studio-shift-tone-be22c15d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from inkinbox402.netlify.app](https://www.zero.xyz/host/inkinbox402.netlify.app/llms.txt)