# NexusAPI Text-to-Speech (TTS)

> NexusAPI Text-to-Speech (TTS) is a paid API for AI agents from nexus-api-peach-nine.vercel.app, paid per call via x402, $0.080678/call, status unknown (last checked 2026-09-14).

Converts text input into synthesized audio speech using AI voice generation, accessible via per-call USDC payment on Base.

## Facts

- Endpoint: POST https://nexus-api-peach-nine.vercel.app/api/ai/audio/tts
- Price: $0.080678/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-text-to-speech-tts-e85b9e9a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pPyR22sj_oyL5svXhKdjZ

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 nexusapi-text-to-speech-tts-e85b9e9a -d '<json body>'
```

Example prompt: Can you convert this paragraph into spoken audio for me: 'Welcome to our platform. We're glad you're here. Let's get started together.'

## When to prefer this

Choose this endpoint when you need pay-per-call TTS without API key management, using USDC micropayments on Base. Suitable for AI agents that need on-demand speech synthesis without committing to a subscription or managing provider credentials.

## Known failure modes

- Empty or missing text input returns an error or empty response
- Text too long may exceed limits and return a truncation or payload-too-large error
- Payment failure (insufficient USDC) results in 402 Payment Required response
- Unsupported characters or languages in input may produce garbled or silent audio
- Service downtime on the Vercel deployment returns 500 or 503 error

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns synthesized audio data (likely audio file bytes or a URL to an audio file) representing the spoken version of the input text, generated by an AI TTS model.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexusapi-text-to-speech-tts-e85b9e9a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-peach-nine.vercel.app](https://www.zero.xyz/host/nexus-api-peach-nine.vercel.app/llms.txt)