What’s the Difference Between an API vs an SDK?

  • An API establishes communication between two applications. SDK is the toolbox and all you need to build applications from scratch.
  • An SDK may contain APIs, but APIs cannot contain SDKs.
  • SDKs use APIs to make communication between two applications possible. APIs cannot build an application.
  • An API is essentially an interface for applications. SDKs are tools used to build applications.
  • SDKs are easy to use and faster to integrate. APIs do not have code libraries and are easy to modify.
  • APIs deliver a request from one app to another software and deliver a response back to the requesting app. SDKs contain all you need to communicate with another software and all you need to build software.
  • Devs always use an SDK to build apps. APIs only come in when there is a need to have external communication with other platforms.

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