Search any Secretary of State business registry through a single REST endpoint — entity status, registered agent, formation date, and filing history. Real-time, and cached for speed.
No credit card required · 100 free lookups
Stop stitching together fifty government websites. Get clean, queryable Secretary of State data behind one key.
A single POST call covers every state. No per-state integrations, no scrapers to babysit.
Fresh lookups when you need them, millisecond responses from cache when you don’t.
Status, entity type, formation date, registered agent, and principal address — normalized.
Full national coverage from one consistent schema. The state is just a parameter.
Go beyond entities with UCC filings and officer / person search.
Predictable JSON, clear errors, and pricing that scales linearly with you.
One endpoint, predictable JSON. Authenticate with a secret key from your server, pass a name and a state, and get a normalized entity record back.
GET https://api.sosfinder.com/search
?state=WY
&business_name=Acme LLC
x-api-key: sk_live_••••••••••••Start free, then pay for what you look up. Every result is cached, so you’re never billed twice for the same record.
For prototypes and evaluation.
For production apps getting started.
For high-traffic products.
For volume & compliance needs.
Grab a key, make your first call in minutes, and scale when you’re ready. 100 free lookups, no credit card.