Narrative: The "Technical view - Application API" viewpoint extends technical view application and provides a comprehensive framework for enabling seamless integration and interaction between digital public services. This view associates the Application API with Digital Public Services from the application layer. Within this view, Application API refers to the set of interfaces and protocols that allow different applications and services to communicate and exchange data in a standardized and efficient manner. It enables interoperability and integration between digital public services, facilitating seamless data exchange and functionality sharing. Digital Public Services leverage Application API to enable external applications or services to access and interact with their functionalities and data. By exposing well-defined APIs, organizations can enable integration, enhance service capabilities, and foster collaboration within the digital ecosystem. By associating Application API with Digital Public Services, the "Technical view - Application API" promotes standardized and reusable interfaces, facilitating interoperability and enabling the development of innovative applications that can interact with digital public services. The use of Application API allows for the creation of secure and controlled access points, ensuring that data and functionalities are shared selectively and according to predefined permissions. It enables organizations to expose specific functionalities or data to external systems, fostering integration and promoting the development of a broader digital ecosystem.