Let's create or add ASP.NET Web API services to our My Todo application that we created in the last chapter. Our My Todo application was created using the Empty ASP.NET 5 template in Visual Studio 2015. When an empty project is created, it creates a lean web application. It does not include assemblies related to MVC or the Web API. So, we need to explicitly add the required assemblies or modules to implement the Web API in our application.