The API strategy consists of a core — a generic set of rules for all government APIs — and various extensions that only pertain to a specific application or that are not maure enough for the core set.

These extensions are described in this document. It is indicated whether an extension is stable or in development.

Compared to the previous version of the API Designrules Extensions (2021-06-28) the extension API-security has been changed, and 2 extensions have been added: Hypermedia and Naming Conventions. After a public consultation round, held in the summer of 2021, these extensions have been finalized and released as stable.