Stephen Toub

MidiSharp. C# library for reading, writing, and manipulating MIDI (*.mid) files.

corefxlab. This repo is for experimentation and exploring new ideas that may or may not make it into the main corefx repo.

eShop. A reference .NET application implementing an eCommerce site

performance. This repo contains benchmarks used for testing the performance of .NET Frameworks.

extensions. This repository contains a suite of libraries that provide facilities commonly needed when creating production-ready applications.

runtime. .NET is a cross-platform runtime and libraries, for cloud, IoT and desktop apps. It includes a garbage collector, JIT compiler, primitive data types and class libraries.

DataStructures.Algorithms. DataStructures and algorithms

mcp. The official C# SDK for Model Context Protocol servers and clients, maintained by Microsoft

corefx. This repository contains the foundational libraries that make up the .NET Core development stack.

Humanizer. Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities

eShopOnContainers. Cross-platform .NET sample microservices and container based application that runs on Linux Windows and macOS. Powered by .NET 7, Docker Containers and Azure Kubernetes Services. Supports Visual Studio, VS for Mac and CLI based environments with Docker CLI, dotnet CLI, VS Code or any other code editor.

aspnetcore. ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.

roslyn. The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs.

reverse-proxy. A toolkit for developing high-performance HTTP reverse proxy applications.

roslyn-analyzers. C#

semantic-kernel. Integrate cutting-edge LLM technology quickly and easily into your apps

kernel-memory. RAG architecture: index and query any data using LLM and natural language, track sources, show citations, asynchronous memory patterns.

DeepSeek-NET. A modern .NET wrapper for the DeepSeek AI API

google-cloud-dotnet. Google Cloud Client Libraries for .NET

vs-threading. The Microsoft.VisualStudio.Threading is a xplat library that provides many threading and synchronization primitives used in Visual Studio and other applications.

Mistral.SDK. An unofficial C#/.NET SDK for accessing the Mistral AI API

modelcontextprotocol. Specification and documentation for the Model Context Protocol

autogen. A programming framework for agentic AI 🤖 PyPi: autogen-agentchat Discord: https://aka.ms/autogen-discord Office Hour: https://aka.ms/autogen-officehour

openai-dotnet. The official .NET library for the OpenAI API

Rystem.OpenAi. .Net wrapper for OpenAI with Dependency injection integration, factory integration: you may inject more than one endpoint, azure integration: you may swap among openai endpoint and any azure endpoint quickly and easily. You can calculate tokens and cost for each request (before the request) and for each response.

microsoft_mcp. Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration

grpc-dotnet. gRPC for .NET

Google_GenerativeAI. Unofficial C# Google Generative AI SDK (Google Gemini) with function calls support

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

SourceBrowser. Source browser website generator that powers http://referencesource.microsoft.com and http://source.roslyn.io

wpf. WPF is a .NET Core UI framework for building Windows desktop applications.

dotnet-api-docs. .NET API reference documentation (.NET Framework, .NET Core, .NET Standard and Xamarin)

eShopSupport. A reference .NET application using AI for a customer support ticketing system

TransformersSharp. A little wrapper for hugging face transformers in C#

Rystem. Rystem is an add-on to .Net functionalities like Dependency Injection (with Factory, Scan, Decoration). Repository Framework to have an easier integration for your DDD or CQRS pattern, and many many others fancy stuff.

aspire. Tools, templates, and packages to accelerate building observable, production-ready apps

mcpdotnet. .NET implementation of the Model Context Protocol (MCP)

diagnostics. This repository contains the source code for various .NET Core runtime diagnostic tools and documents.

botbuilder-dotnet. Welcome to the Bot Framework SDK for .NET repository, which is the home for the libraries and packages that enable developers to build sophisticated bot applications using .NET.

BotSharp. The AI Agent Framework in .NET

Pyrolite. Java and .NET interface to Python's pickle and Pyro protocols

benchmarks. Benchmarks for ASP.NET Core

corert. This repo contains CoreRT, a .NET Core runtime optimized for AOT (ahead of time compilation) scenarios, with the accompanying .NET Native compiler toolchain.

source-indexer. This repo contains the code for building http://source.dot.net

Primes. Prime Number Projects in C#/C++/Python

playground. C#