In the “Create New ASP.NET Core Web Application” window, select .NET Core as the runtime and ASP.NET Core 3.1 (or later) from the drop-down list at the top. I’ll be using ASP.NET Core 3.1 here.

In this article, we’ll examine how to implement API key authentication in ASP.NET Core 7. To use the code examples provided below, you should have Visual Studio 2022 installed in your system.