# Klymax402 Text-to-Speech API

> Klymax402 Text-to-Speech API is a paid API for AI agents from text-to-speech.api.klymax402.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Converts text into spoken audio, supporting multiple languages including English, French, Spanish, Japanese, and more

## Facts

- Endpoint: GET https://text-to-speech.api.klymax402.com/api/speak
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/text-to-speech-api-klymax402-com-dbb19f1a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7fM2zOyay4VKsdmeLXkGC

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 text-to-speech-api-klymax402-com-dbb19f1a
```

Example prompt: Can you convert this sentence into spoken audio in Spanish: 'Buenos días, bienvenido a nuestra tienda'?

## When to prefer this

Choose this endpoint when you need to quickly synthesize short text (up to 200 characters) into speech audio in one of many supported languages, especially in a pay-per-call agentic workflow where per-request micropayment via x402 is acceptable. Well-suited for small-scale or ad-hoc TTS needs without a subscription.

## Known failure modes

- Text exceeds 200 character limit — request rejected or truncated
- Unsupported language code provided — fallback to English or error returned
- Empty text input — error response
- Payment not processed (x402 payment required before response is served)
- Network timeout or service unavailability

## How this service works

Convert text to speech audio

## Output

The endpoint returns synthesized speech audio derived from the input text, spoken in the specified language. The response is an audio file or stream ready for playback.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "The text to convert to speech (max 200 characters per request)"
  },
  "language": {
   "type": "string",
   "description": "Language code: en, fr, es, de, it, pt, ja, ko, zh, ar, ru, hi, etc. (default: en)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/text-to-speech-api-klymax402-com-dbb19f1a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from text-to-speech.api.klymax402.com](https://www.zero.xyz/host/text-to-speech.api.klymax402.com/llms.txt)