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agents.withzero.xyz speech gemini-3.1-flash-tts
https://agents.withzero.xyz/api/v1/audio/speech/gemini-3.1-flash-tts
answers 402
Convert text to natural-sounding speech with Google Gemini 3.1 Flash TTS and return a hosted audio URL.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.16
- Network
- base
- Pay to
- 0x0a5ff12349ad38e492edf5eb888213d040fd9786
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 1180 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:31:32.792Z (1h ago)
- Category
- media
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagents.withzero.xyz%2Fapi%2Fv1%2Faudio%2Fspeech%2Fgemini-3.1-flash-tts"