What's the difference between an SDK and an API? RapidAPI Comic cover.
SDK stands for software development kit. They contain a set of ready-to-use tools that allow developers to build applications for specific platforms. You can think about them as a toolbox shown in the image.
APIs are another 'tool' often included in SDKs. Image shows an open toolkit with the word API inside.
SDKs can contain several components that facilitate the application building process. Most will always contain a compiler, debugger, and APIs but may also contain documentation, testing tools, libraries, etc. Image shows puzzle pieces labeled as components that end up creating an application.
There are many SDKs available online such as Android, Facebook, and Java. Image shows three toolkits labeled as each one.