Version 1.17.4.0 - Release date: August 26, 2026

Create and update non-member companies

A new endpoint is available for creating and updating non-member companies: POST /v1/company

You can use this endpoint to:

  • Create or update a non-member company.
  • Create a company link for a non-member company.

This update helps you manage non-member companies directly through the Onix API and maintain company links for integrations.

Create company links for member companies

You can also use POST /v1/company to create company links for member companies.

For member companies, the endpoint only supports creating the company link. It does not create or update company information.

Create and update locations for non-member companies

A new endpoint is available for creating and updating locations for non-member companies: POST /v1/company/locations

You can use this endpoint to:

  • Update an existing non-member company location by locationExternalId.
  • Create a new location under an non-member company identified by companyExternalId.
  • Create a location link in Settings > External linking > Company links.

The endpoint doesn’t support location creation or updates for member companies.

Affected endpoints

  • POST /v1/company
  • POST /v1/company/locations