About this API
The New York State Department of State keeps a record of every filing for every incorporated business in the state. The "Active Corporations: Beginning 1800" dataset lists entities active as of the last business day of a given month, and each record carries the DOS ID, current entity name, initial filing date, entity type, county and the process-service (registered-agent) name and address. The data is served by the Socrata (SODA) platform, so you filter it with SoQL parameters: $where, $q, $select and $limit. The endpoint returns a CORS header (Access-Control-Allow-Origin: *), so you can query it straight from browser code, with no key and no registration.
Frequently asked questions
Do I need an API key?
No. The endpoint is fully open — it works without an API key and without registration. Socrata lets you optionally add a free application token (App Token) for higher rate limits, but it is not required to use the data.
What data does this API return?
A list of active corporations registered with the New York State Department of State. For each entity it returns the DOS ID, current name, initial filing date, entity type (e.g. DOMESTIC BUSINESS CORPORATION), county, and the process-service name and address. The response is JSON and can be filtered with SoQL queries.
Can this API be called directly from a browser?
Yes. The endpoint returns a CORS header (Access-Control-Allow-Origin: *), so you can call it directly from front-end code with no server-side proxy. That is why the "Try it" button on this page works.
Who runs this API?
The New York State Department of State (Division of Corporations), which maintains the state's corporate register. It publishes the data on New York's open-data portal data.ny.gov, running on the Socrata platform.