the402 endpoint detail

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agent402.tools audio speech

https://agent402.tools/v1/audio/speech

payable

OpenAI-compatible text-to-speech over x402 — point any OpenAI SDK's audio.speech.create() at base_url https://agent402.tools/v1 and pay $0.06 per call in USDC, no API key, no signup. Served by Voxtral Mini TTS behind a five-model failover chain (x...

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.06
Network
base
Pay to
0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
185 ms
Payment options
12 usable of 12
Last checked
2026-08-10T09:16:02.075Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.tools%2Fv1%2Faudio%2Fspeech"