Central OIN Consultancy (COR)

The Central OIN Consultation provides an overview of all issued Public Organisation Identification Numbers (OIN). Organisations that wish to exchange digital information with or within the government on the basis of the Digilink Standard can receive an OIN. This is a unique identifying number used in digital communication and included in PKIO certificates. With the COR API, the OINs of registered organisations can be requested and the organisation names can be searched from existing OINs. The COR API offers the following services: Request OIN and organisation names without parameters Request OIN and organisations with parameters Request a single organisation Request last change to the COR database For retrieval of organisations can be filtered by: OIN, name, status, organisation code, organisation Type and Chamber of Commerce number. These filters can be combined. The license is on “Unknown” because it is not explicitly defined by the data owner. The data is publicly available.