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agent402.tools api tts
https://agent402.tools/api/tts
payable
Convert text to speech using OpenAI TTS-1. Returns base64-encoded audio (mp3/opus/aac/flac/wav/pcm). 10 voices available. No API key needed; pay per call via x402. Text capped at 2000 chars.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.05
- Network
- base
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 87 ms
- Payment options
- 12 usable of 12
- Last checked
- 2026-08-10T09:09:25.748Z (1d ago)
- Category
- media
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.tools%2Fapi%2Ftts"