.NET is a cross-platform runtime for cloud, IoT, and desktop apps.

The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.

.NET APIs for commonly used programming patterns and utilities, such as dependency injection, logging, and configuration.

Home of .NET's Virtual Monolithic Repository which includes all the code needed to build the .NET SDK from source

Scans your project to determine what components you use

Tools that provide common build infrastructure for multiple .NET Foundation projects.

Static site generator for .NET API documentation.

Repository that hosts packages from the .NET platform whose original home/branch is not building any longer.

Core functionality needed to create .NET Core projects, that is shared between Visual Studio and CLI

Various tools and helpers to read assembly metadata.

Fast Inversion of Control Tool and Successor to StructureMap

ML.NET is an open source and cross-platform machine learning framework for .NET.

A fast, distributed, high performance gradient boosting (GBT, GBDT, GBRT, GBM or MART) framework based on decision tree algorithms, used for ranking, classification and many other machine learning …

Semantic Kernel (SK) is a lightweight SDK enabling integration of AI Large Language Models (LLMs) with conventional programming languages.

Command line parsing, invocation, and rendering of terminal output.

Unity.WebAPI is a library that allows the simple integration of Microsoft's Unity IoC container with ASP.NET Web API.

Google Cloud Client Libraries for .NET

.NET API reference documentation (.NET 5+, .NET Core, .NET Framework)

Most complete C# .Net SDK for Google Generative AI and Vertex AI (Google Gemini), featuring function calling, easiest JSON Mode, multi-modal live streaming, chat sessions, and more!

A logger for MSBuild that records a structured representation of executed targets, tasks, property and item values.

.NET news, announcements, release notes, and more!

Gemini SDK for .NET and ASP.NET Core enables developers to use Google's state-of-the-art generative AI models to build AI-powered features and applications.