Model Context Protocol (MCP) Server

Model Context Protocol (MCP) Server

Model Context Protocol Server PoC Project

ellenfel

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Model Context Protocol (MCP) Server

A basic implementation of a Model Context Protocol server for educational purposes. This server demonstrates the core concepts of MCP and how to implement them in practice using Python.

Features

  • WebSocket-based communication using FastAPI and WebSockets
  • Basic MCP message handling with Pydantic models
  • Support for model context management
  • Simple client-server interaction
  • Async/await support for better performance

Getting Started

  1. Create a virtual environment (recommended):
python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate
  1. Install dependencies:
pip install -r requirements.txt
  1. Start the development server:
python -m src.server
  1. Run the example client:
python examples/basic_usage.py

Project Structure

src/
├── server.py          # Main server implementation
├── types/            # TypeScript type definitions
│   └── mcp.py        # MCP protocol types using Pydantic
└── examples/         # Example implementations
    └── basic_usage.py # Basic client example

MCP Protocol Overview

The Model Context Protocol (MCP) is a communication protocol designed for AI model interactions. This implementation includes:

  • Message format handling using Pydantic models
  • Context management
  • Basic protocol operations
  • Async/await support for better performance

Key Differences from TypeScript Version

  1. Uses FastAPI instead of Express
  2. Implements async/await for better performance
  3. Uses Pydantic for data validation and serialization
  4. More Pythonic code structure and patterns MIT

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