Last updated: 9 Jun 2025

collections: Collections API

Collections serves the organisations API. This used to be served by Whitehall but it was migrated with organisation pages.

Endpoints

/api/organisations (client)

Lists organisations. Includes title, status and relationships to other orgs.

/api/organisations/:slug (client)

Shows the details for a single organisation.

Consumers

Please add your application to this list if you're using the API.

/api/organisations

• Government organisations on GOV.UK register
• GOV.UK Forms Admin
• Manuals publisher
• Short URL manager
• Signon
• Support API
• Transition
• Knowledge graph