Skip to main content
Korint looks up French company information in the official INSEE Sirene registry. A company can be identified either by its SIRET (the 14-digit establishment identifier) or its SIREN (the 9-digit company identifier)—it is the same registry; the number is simply the key used to query it.

​
What We Fetch

Using a SIRET or SIREN, Korint retrieves:
  • Company Legal Name: Official registered business name
  • Business Activity: NAF/APE code indicating the type of business activity
  • Legal Structure: Company type (SARL, SAS, etc.)
  • Company Address: Registered business address
  • Company Status: Whether the company—and the specific establishment—is active or closed
  • Registration Date: When the company was registered
This information auto-populates company details during quoting and helps verify business eligibility for commercial insurance products.

​
Looking a company up directly

GET /siren queries the registry without touching a contract. Pass at least one of siren, siret or name as a query parameter — all three are optional individually, and a name search returns several matches:
This route is tenant-agnostic and takes no tenant header. The response carries total and a data array of formatted company records — use it to let a user pick their company before you create anything. A malformed identifier returns INVALID_CUSTOMER_SIRET or INVALID_CUSTOMER_SIREN, and a call with no query parameter at all returns REQUEST_VALIDATION_FAILED.

​
How enrichment overwrites what you send

You do not copy those values onto the customer yourself. Enrichment is automatic and authoritative: supplying the field whose integration key is siret triggers the lookup, and every other customer field mapped to a company-registry key is overwritten with the registry’s value — regardless of what you sent. Underwriting depends on the registry being the source of truth for company identity. Send the SIRET, then read the customer back. The registry key list, what happens to legal statuses the registry omits, and why an invalid SIRET discards the rest of your request are in Fields the platform owns.

​
Use in fraud detection

The same registry lookup supports document fraud detection. When a document carries a company identifier, Korint can confirm the company existed and was active on the document’s date, and that the name on the document matches the registry. Companies whose data is legally restricted (non-diffusible) are not assessed.