# WhatChuNeed Shift Tone

> WhatChuNeed Shift Tone is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Rewrites or transforms text input to adopt a different tone or style

## Facts

- Endpoint: POST https://whatchuneed.vercel.app/api/content/shift-tone
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/whatchuneed-shift-tone-201ae23c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GYUgkpsyT-Jhv0Err8U0D

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 whatchuneed-shift-tone-201ae23c -d '<json body>'
```

Example prompt: Can you rewrite this draft email to sound more professional and authoritative? Here's the text: 'hey just checking if you got my last message, lol, we really need this done soon thx'

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call tone transformation without setting up a full LLM pipeline. Ideal for agents that occasionally need to rewrite text for different audiences (formal vs. casual, empathetic vs. assertive) without managing prompt engineering or model selection. The flat $0.10 USDC per-call pricing makes it cost-predictable for low-to-medium volume use cases.

## Known failure modes

- Empty input string returns an error
- Ambiguous tone instruction may produce inconsistent output
- Very long text inputs may be truncated or produce degraded results
- Malformed JSON body returns a 400 error
- Payment failure via x402 protocol results in a 402 response before processing

## How this service works

320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.

## Output

Returns a rewritten version of the submitted text with the tone adjusted according to the instructions provided in the input field, wrapped in a result object with a status indicator.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "Request input"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "Response data"
  },
  "status": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/whatchuneed-shift-tone-201ae23c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from whatchuneed.vercel.app](https://www.zero.xyz/host/whatchuneed.vercel.app/llms.txt)