The built.io Xamarin SDK allows you to integrate the built.io application backend with your Xamarin powered mobile application. You can integrate built.io with your application by following these steps: 1. Add the following statement before your class definition: using BuiltSDK; 2. You are now ready to set up your application. Use the initialize static method for the `Built` class as follows: Built.App("application_api_key"); Congratulations! You're all set to use built.io. You can learn more about this at https://docs.built.io/quick-start or http://xamarinsdk.builtapp.io.