OpenAI's own transcription wire: POST multipart/form-data with a `file` part and get the transcript back. Point any Whisper-shaped SDK at this gateway and pay per call with USDC, no account and no API key. Same model and same four-minute cap as /api/transcribe, which takes a URL instead of an upload; /v1/pro/audio/transcriptions takes it to ten minutes.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.03 USDC | 0xaBF4...a9D0 |
| Polygon | exact | $0.03 USDC | 0xaBF4...a9D0 |
| Arbitrum One | exact | $0.03 USDC | 0xaBF4...a9D0 |
| eip155:143 | exact | 0.03 tokens | 0xaBF4...a9D0 |
| eip155:43114 | exact | 0.03 tokens | 0xaBF4...a9D0 |
| eip155:1329 | exact | 0.03 tokens | 0xaBF4...a9D0 |
| Optimism | exact | $0.03 USDC | 0xaBF4...a9D0 |
| eip155:4663 | exact | 0.03 tokens | 0xaBF4...a9D0 |
| Celo | exact | 0.03 tokens | 0xaBF4...a9D0 |
| Base | upto | $0.03 USDC | 0xaBF4...a9D0 |
| solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp | exact | 0.03 tokens | J7aN3P...3xwg |
| stellar:pubnet | exact | 0.30 tokens | GDNJXC...WWRL |
| algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= | exact | 0.03 tokens | C7IIHG...2XIE |