OpenSOSData is a business entity lookup API for United States Secretary of State records. It aggregates official corporate registration data — entity status, registered agents, officers, filing history, and UCC liens — from all 50 states, Washington D.C., Puerto Rico, and the U.S. Virgin Islands into a single REST API. It scrapes each state's official registry in real time and returns clean, consistent JSON, letting developers, compliance teams, and AI agents access business records across state lines without querying each registry individually.
Business entity data in the United States is scattered across 50+ Secretary of State websites. Each one has a different format, different search interface, different quirks — CAPTCHAs, rate limits, session timeouts, no API. If you need records from more than one state, you're writing and maintaining scrapers for each one.
OpenSOSData solves this with a single endpoint. Maintained scrapers cover every U.S. jurisdiction. You send a company name and state, and get back structured JSON — same schema whether the entity is in Delaware, California, or Puerto Rico. Over 23M+ entities are pre-indexed for instant search, with real-time lookups available for the freshest data.
Legal tech platforms, KYB and compliance teams, process servers, law firms, title companies, due diligence providers, and AI agents that need structured business entity data on demand.
Live lookups start at $0.10 and go as low as $0.0314 with volume. Cached lookups start at $0.01 and go as low as $0.00314 — up to 10x cheaper than live. Pay as you go. No subscription. Credits never expire.
"Government data is public. Access to it should cost cents, not dollars."
OpenSOSData is a product of OPENSOSDATA LLC, founded 2026.