Citation check: takes a claim and a cited source (URL or DOI) and returns supported, contradicted or not_addressed with the verbatim passage as evidence. The source is fetched with a full browser render. Dead, paywalled or PDF-only sources return source_unavailable, never a false contradicted.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.03 USDC | 0x0FAD...2767 |
| solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp | exact | 0.03 tokens | EjwKsa...8vPN |