Effortless REST API Development with C#

A configuration-free alternative to ASP.NET Core for building REST APIs on .NET.

Fast Development

GenHTTP is designed for rapid web service development in .NET, supporting IDEs like Visual Studio or Rider.

100% Managed

Written in C# and provided as a .NET library package on nuget, with just a few dependencies. Spin up a local server with a single line of code.

Simple & Powerful

Provides a simple, yet powerful, fully object-oriented module system. Supports widely used standards such as Open API, WebSockets, Server Sent Events, or JWT authentication.

Flexible Hosting

Embed the tiny engine into your existing dotnet application (e.g. Windows Forms, WPF, MAUI, WinUI, UWP, Uno, Unity or console) or host it via Docker. No configuration files or other magic.

Minimal Footprint

Originally intended to run on a netbook with an Intel Atom processor, the server code is optimized to be fast and minimalistic, with low CPU and memory requirements.

Open Source

All sources are available on GitHub under the MIT license. Contributions welcome.