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

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.

price-ascending: candidates are ordered by the listed price of the operation, with no managed-first preference applied. Unlike /v1/apis, this surface does not rank Apiosk-settled listings above federated ones — a comparison that reorders on commercial grounds is not a comparison. Pass sort=managed_first for the catalog's ordering.

Compared: listed price, settlement rail and input compatibility. Not measured yet: latency, reliability, result quality, and provider terms such as rate limits, jurisdiction and licensing.