Convert text to speech using OpenAI TTS-1: returns audio (the base64-encoded file in the format asked for: mp3, opus, aac, flac, wav or pcm) with model, voice, format and chars (the characters spoken). 10 voices available. No API key needed; pay per call over x402 or MPP. Text capped at 2000 chars. Model-backed. For high-volume speech where timbre matters less, /api/tts-lite is the same interface on Kokoro-82M at $0.005.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.05 USDC | 0xaBF4...a9D0 |
| Polygon | exact | $0.05 USDC | 0xaBF4...a9D0 |
| Arbitrum One | exact | $0.05 USDC | 0xaBF4...a9D0 |
| eip155:143 | exact | 0.05 tokens | 0xaBF4...a9D0 |
| eip155:43114 | exact | 0.05 tokens | 0xaBF4...a9D0 |
| eip155:1329 | exact | 0.05 tokens | 0xaBF4...a9D0 |
| Optimism | exact | $0.05 USDC | 0xaBF4...a9D0 |
| eip155:4663 | exact | 0.05 tokens | 0xaBF4...a9D0 |
| Celo | exact | 0.05 tokens | 0xaBF4...a9D0 |
| Base | upto | $0.05 USDC | 0xaBF4...a9D0 |
| solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp | exact | 0.05 tokens | J7aN3P...3xwg |
| stellar:pubnet | exact | 0.50 tokens | GDNJXC...WWRL |
| algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= | exact | 0.05 tokens | C7IIHG...2XIE |