What type of API is designed for scalability and reusability across multiple applications?

The type of API designed for scalability and reusability across multiple applications is known as a system API. System APIs serve as a bridge to back-end services and data, encapsulating the underlying complexity of various systems or databases and providing a stable, standardized interface for other services to consume.

By focusing on the core functionality and data provision, system APIs are inherently reusable across different applications, enabling developers to create a more modular and scalable architecture. This allows multiple applications to interact with a system API without needing to know the internal workings of the back-end systems, thus promoting efficiency and reducing redundancy.

While experience APIs and process APIs have their own specific roles, they are typically tailored to specific use cases or user experiences, making them less reusable across various applications compared to system APIs. Experience APIs are particularly focused on catering to specific consumer needs, while process APIs facilitate orchestration of various services. Provider APIs, on the other hand, are more aligned with the overall infrastructure rather than the reusable service nature seen in system APIs.