Screen a counterparty against public-domain watchlists: OFAC SDN (fuzzy match, daily cache) plus SEC and CFTC enforcement lists. POST /v1/counterparty with a {name} and get matches and the lists checked as one JSON object. Deterministic given the same cached lists. Pay per request in USDC; no account, no API key.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.005000 USDC | 0xF732...B829 |