Changelog

This changelog tracks all changes that are visible in our API.

2026-10-13

• Removed the client_credentials grant type from the /token endpoint of the auth API. Requests with grant_type=client_credentials are no longer accepted. Use the JWT Bearer grant instead: upload a public key to the entity client and authenticate with a self-signed JWT (see Authentication methods).
• Removed the client_secret field from the Entity Client resource.

2026-09-17

• Removed default limit on list endpoint This was previously transparently set to 2000.

2026-09-07

• Added created_at field to the Service Providing Group resource.
• Added created_at and complete_at fields to the Service Providing Group Product Application resource.

2026-06-08 · Initial release

• Initial public release of the Flexibility Information System API. All endpoints are available under Api-Version: 2026-06-08.