Learn about the differences between API vs SDK and how they are used in software development ... A typical interaction with an API involves making a REST API request and receiving a response.

The key difference between the terms REST versus RESTful is that REST refers to a philosophy about the architecture and design of web services, while the term RESTful refers to any API that properly ...

For an SDK, in terms of software, the target may be an API, middleware, or an operating system. Of course, middleware and operating systems can have many APIs for different functional areas.