the402 endpoint detail

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voice.forgemesh.io audio speech-long

https://voice.forgemesh.io/v1/audio/speech-long

payable

OpenAI-compatible text-to-speech endpoint (input, voice, response_format) for drop-in use with existing OpenAI TTS clients, 1 of 10 standard voices, for 501-2000 characters, WAV/FLAC/OGG output. Use it to: voice a longer OpenAI-formatted request without an API key, migrate an existing TTS integration to pay-per-call pricing, synthesize extended text through a familiar request shape. USDC on Base v

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.003
Network
base
Pay to
0x962794FB8aD92941fAf1ab446b9e30637B86F331
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
104 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:13:45.551Z (3d ago)
Category
media

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