Central OIN Consultancy (COR)
The Central OIN Consultancy Service provides an overview of all issued Public Organisation Identification Numbers (OIN). Organisations that want to exchange information digitally with or within the government on the basis of the Digilink Standard can receive an OIN. This is a unique identifying number that is used in digital communication and is included in PKIO certificates, among other things. The COR API allows the retrieval of OINs from registered organisations and the retrieval of organisation names from existing OINs. The COR API offers the following services: Request OIN and organization names without parameters Request OIN and organizations with parameters Request some organization Request latest change on the COR database To request organizations can be filtered on: OIN, name, status, organization code, organization Type and Chamber of Commerce number. These filters can be combined. The license is set to "Unknown" because it is not explicitly defined by the data owner. The data is publicly available.
Trust score
How is this computed?Composite of 5 axes from our methodology (proof-based officialness, live verification, metadata completeness, license clarity, agent readiness).
- Officialnessweight 25%50/100
Not public-sector → neutral score; not subject to the proof checker.
- Availabilityweight 25%0/100
Verification has failed 4 consecutive times.
- Metadata completenessweight 20%50/100
3 of 6 recommended metadata fields populated.
- License clarityweight 15%50/100
License info not yet tracked for APIs (datasets only).
- Agent readinessweight 15%10/100
Topic tags assigned
Data access
This entry links to a dataset, file download, or documentation page rather than a self-describing API, so there's no field schema to display.