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MCPSharp

Createdafrise

Enables building Model Context Protocol (MCP) servers and clients in .NET for AI assistant integration.

Github Repo

About

MCPSharp is a .NET library designed to streamline the creation of MCP-compliant tools and functions, allowing developers to seamlessly integrate .NET applications with AI assistants and models. It simplifies the process of building MCP servers and clients by offering an easy-to-use, attribute-based API, built-in JSON-RPC support, and automatic parameter validation. MCPSharp facilitates exposing .NET methods as MCP endpoints, dynamic tool registration, and integration with Microsoft.Extensions.AI and Semantic Kernel, making it a powerful tool for adding AI capabilities to applications through standardized interfaces.

Key Features

  • Built-in JSON-RPC support for seamless communication
  • Integration with Microsoft.Extensions.AI as AIFunctions
  • Attribute-based API for easy tool and resource definition
  • 237 GitHub stars
  • Automatic parameter validation and type conversion
  • Semantic Kernel support via KernelFunctionAttribute

Use Cases

  • Create tools for AI assistants like Anthropic's Claude Desktop
  • Integrate with Microsoft.Extensions.AI and Semantic Kernel
  • Expose existing .NET code as MCP endpoints