Model Context Protocol (MCP) Server in C#

Model Context Protocol (MCP) Server in C#

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This MCP example demonstrates creating a C# server that defines tools, allowing interaction through command line or other apps, facilitating automation and integration.
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Apr 18 2025
Model Context Protocol (MCP) Server in C#
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What is Model Context Protocol (MCP) Server in C#?

The MCP server in C# provides a framework for defining tools that can be invoked from command line or applications. It supports creating tools with declarative attributes, such as descriptions, and manages server setup via .NET SDK and Visual Studio Code. The server allows for custom tool implementation, such as echo functions that respond with messages or reversed strings. Configuration files specify server transport methods like stdio, and commands can be tested in an environment with proper dependencies installed. It enhances automation workflows by rich tool definitions and supports local development and testing.

Who will use Model Context Protocol (MCP) Server in C#?

  • Developers creating command-line tools in C#
  • Automation engineers integrating tools into workflows
  • Software developers building custom MCP servers
  • Technical users performing application automation

How to use the Model Context Protocol (MCP) Server in C#?

  • Step 1: Create a new .NET console project using 'dotnet new console -n ProjectName'.
  • Step 2: Add necessary dependencies with 'dotnet add package ModelContextProtocol --prerelease'.
  • Step 3: Implement tools in C# with attributes like [McpServerTool] in source files.
  • Step 4: Configure 'mcp.json' with server settings and command parameters.
  • Step 5: Build the project using 'dotnet build'.
  • Step 6: Launch the MCP server via the configuration, e.g., using VSCode tasks or command line.
  • Step 7: Interact with the server using command inputs and verify responses.

Model Context Protocol (MCP) Server in C#'s Core Features & Benefits

The Core Features
  • Define tools with annotations
  • Run MCP server via stdio or other transports
  • Support custom command implementations
The Benefits
  • Enables automation of C# tools
  • Easy integration with command-line workflows
  • Flexible tool definition with attributes

Model Context Protocol (MCP) Server in C#'s Main Use Cases & Applications

  • Developing custom command-line utilities in C#
  • Automating workflows with embedded C# tools
  • Testing server interactions through scripts
  • Building local prototypes of MCP-based services

FAQs of Model Context Protocol (MCP) Server in C#

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