| STABLE
                Overview | The overview of various aspects and requirements of openEHR REST APIs. | 
            
            | STABLE
                EHR API | This specification describes service endpoints, resources, functions and operations as well as details of requests and responses that interacts with an openEHR EHR API in a RESTful manner. | 
            
            | STABLE
                Query API | This specification describes service endpoints, resources, functions and operations as well as details of requests and responses that interacts with an openEHR Query API in a RESTful manner. | 
            
            | STABLE
                Definition API | This specification describes service endpoints, resources, functions and operations as well as details of requests and responses that interacts with the openEHR Definition API in a RESTful manner. Definitions includes Archetypes, Templates and Operational Templates (OPTs). | 
            
            | DEVELOPMENT
                SDT | Simplified Data Template specification - a simplified data representation for committing data to the openEHR EHR. | 
            
            | TRIAL
                OAS 3.0 | The openEHR REST API specifications as OpenAPI Specification v3.0 files in YAML format. |