# WhatChuNeed LLM Text-to-Speech

> WhatChuNeed LLM Text-to-Speech 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).

Converts text to speech audio using an AI voice synthesis model, returning a URL to the generated audio file

## Facts

- Endpoint: POST https://whatchuneed.vercel.app/api/llm/tts
- 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-llm-text-to-speech-f3844c63
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KQPQZHmFvcvu91ZpCXmAC

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-llm-text-to-speech-f3844c63 -d '<json body>'
```

Example prompt: Can you read this text aloud for me: 'Welcome to our platform, we're glad you're here.' — use a friendly female voice and give me the audio file URL.

## When to prefer this

Choose this endpoint when you need a simple pay-per-call text-to-speech conversion without a subscription, especially in an agentic workflow using the x402 payment protocol. Suitable for one-off narration, accessibility audio, or dynamic voice output where you don't want to maintain a TTS provider account. Best when cost per call ($0.10 USDC) is acceptable and you need a URL-based audio output.

## Known failure modes

- Empty or missing text field returns a validation error
- Text too long may exceed model limits and return an error or truncated audio
- Invalid voice name may fall back to default or return an error
- Service unavailable returns a non-200 response with no audio URL
- Payment failure via x402 protocol prevents the call from completing

## 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 JSON object containing the audio file URL (audio_url), the audio format (e.g. mp3), and the duration of the generated speech in seconds. The agent can use the audio_url to stream or download the synthesized speech.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "type": "string"
  },
  "audio_url": {
   "type": "string"
  },
  "duration_seconds": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/whatchuneed-llm-text-to-speech-f3844c63/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)