WireMock.Net is a flexible product for stubbing and mocking web HTTP responses using advanced request matching and response templating. Based on WireMock Java, but extended and different functionality. Full documentation can be found at https://wiremock.org/dotnet/.
A suite of .NET libraries: extension methods, custom types, caching, EF Core, ASP.NET Core response filtering, source generation and .NET Aspire hosting integrations.
UnitTestEx provides .NET testing extensions to the most popular testing frameworks (MSTest, NUnit and Xunit) specifically to improve the testing experience with ASP.NET controller, and Azure Function, execution including underlying HttpClientFactory mocking.