Fact-checking and claim verification API for AI agents. Verify whether a cited source supports a claim; check statistics, dates, units and populations in research reports before publication. Separate web research returns a verdict, linked evidence and sources. Source verification is model-assessed, not guaranteed correct. POST /v2/verify; x402 v2 on Base; 0.20 USDC. No signup or API key.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.20 USDC | 0xdfd6...C110 |