Low-cost OpenAI-compatible GPT-5.5 chat completion for AI agents, apps, and scripts. Pay up to $0.004 per request with x402 USDC on Base. Exact fixed-price and upto usage-based payment are both accepted when clients support them. Public paid calls are limited to 1500 input characters and 128 output tokens for predictable cost.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.004000 USDC | 0x1f01...9a2f |
| Base | upto | $0.004000 USDC | 0x1f01...9a2f |