LLM chat completion with no API key or signup (Claude Sonnet class, anthropic/claude-sonnet-5.5). OpenAI-compatible: set your SDK base URL to https://keyless-theta.vercel.app/best/v1. Flat $0.05 per call, up to 1500 output tokens. Charged only on success.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.05 USDC | 0xa6fA...513f |