Verify one or more US businesses against official, keyless state business-registry sources (currently NY, CO, CT). Each business may be a bare name string ("Palantir Technologies") or an object {name, state}. Returns one record per input with a scored match_confidence, the official entity_name, entity_id, status (+ normalized status), entity_type, formation_date, jurisdiction, registered_agent and principal_address — plus the exact source_url and retrieved_at timestamp. On a Colorado match it attaches a UCC-lien profile (active liens, secured parties, dates). By default every match is also screened against the OFAC SDN sanctions list. No-matches return a defensible audit record (no_match_reason + candidates), never a bare false. Keyless, public-domain sources, no API key.

Screen one or more names directly against the live OFAC SDN (Specially Designated Nationals) sanctions list — no state lookup. Returns per-name verdict (clear | potential_match | match), matched program(s), the alias or primary name that matched, a confidence score, and the exact OFAC source URL. The list is downloaded live per call (freshness: delisted entities correctly return clear). Matching uses distinctiveness learned from the list itself (IDF-weighted contiguous-phrase containment), not a naive substring, to suppress false positives.

List the US states currently verifiable through this server (keyless, public-domain official registries) and how each is addressed. No network call.

Describe the hosted batch verification rail available beyond this free server: the same core run managed at high volume with per-match metered billing (pay-per-event, USD, billed only on a verified match). Returns the rail URL, price, and what it adds. No network call, no payment.