About this API
The e-Business Register (Ariregister) is the Estonian equivalent of the KRS — the register of all Estonian companies and organisations, run by RIK. Estonia is one of the most digital countries in the EU, and the register exposes data by registry code (registrikood) or name, including status, address and name history.
Frequently asked questions
Do I need an API key?
No, the search is fully public and free — no registration, no key required. Full downloadable datasets are also available as open data.
What data does this API return?
Registry data for an Estonian company by registry code or name — name, registry code, status, address and name history.
Can this API be called directly from a browser?
Yes — the API returns a CORS header allowing calls from any domain, so it works directly from frontend code (hence the live "Try it" button above).
Who runs this API?
RIK (Centre of Registers and Information Systems, Registrite ja Infosüsteemide Keskus). Full documentation and open-data files are available at rik.ee.