MCP DeepSeek Demo Project

中文文档

Certification

Overview

The MCP DeepSeek Demo is a client application built on the Model Context Protocol (MCP), designed to interact with the DeepSeek AI model. This project demonstrates how to integrate the MCP protocol with the DeepSeek API to enable tool calling and real-time communication.

The project follows a monorepo structure with two main components:

• mcp-client: A Next.js-based frontend application providing a user interface and DeepSeek API integration.
• mcp-sse-server: An MCP server using Server-Sent Events (SSE) for real-time tool execution.

Key Features

✅ Modern Chinese/English UI
✅ Real-time chat with AI assistant
✅ Supports multiple tool calls (product lookup, inventory management, etc.)
✅ SSE-based real-time communication
✅ Auto-reconnect mechanism
✅ Responsive design (mobile & desktop)

Getting Started

Prerequisites

• Node.js 16+ & npm/yarn/pnpm
• DeepSeek API Key

Installation

1. Clone the repository

git clone https://github.com/yourusername/mcp-deepseek-demo.git
cd mcp-deepseek-demo

2. Install dependencies

pnpm install

3. Configure environment variables

For mcp-client, create .env and add:

# MCP Server Config
MCP_SERVER_URL=http://localhost:8083/sse

# AI Provider
DEEPSEEK_API_KEY=sk-...
DEEPSEEK_API_URL=https://api.deepseek.com/v1/chat/completions
DEFAULT_MODEL=deepseek-chat

For mcp-sse-server, create .env and add:

# Server Config
PORT=8083
ALLOWED_ORIGINS=http://localhost:3000,https://yourdomain.com
LOG_LEVEL=info
HEARTBEAT_INTERVAL=30000

Running the Project

1. Start both MCP Server & Client

pnpm run dev

2. Open http://localhost:3000 in your browser

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Project Structure

mcp-deepseek-demo/
├── packages/
│   ├── mcp-client/         # Next.js Frontend
│   │   ├── app/            # Pages & Routing
│   │   ├── components/     # React Components
│   │   ├── lib/            # Utilities & Services
│   │   └── public/         # Static Assets
│   └── mcp-sse-server/     # MCP SSE Server
│       ├── src/            # Server Code
│       ├── services/       # Business Logic
│       └── files/          # File Operations
├── package.json           # Root Config
└── README.md              # Documentation

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User Guide

1. Connect to the Server

   • The client auto-connects on startup.
   • Connection status is shown at the top.

2. Chat with the AI Assistant

   • Type messages in the input box.
   • The AI will analyze and respond.

3. Use Tools

   • Available tools are listed in the left panel.
   • Request tools naturally (e.g., "Get all products" triggers getProducts).

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Available Tools

🔧 getProducts: Fetch product list (mock)
📦 getInventory: Check inventory (mock)
📝 getOrders: Retrieve orders (mock)
🛒 purchase: Create an order (mock)
📂 getFiles: List files in a directory

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Tech Stack

• Frontend: Next.js, React, TypeScript, Tailwind CSS
• Backend: Node.js, TypeScript
• Communication: Server-Sent Events (SSE)
• APIs: DeepSeek API, Model Context Protocol (MCP)

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Contributing

We welcome contributions!

1. Fork the repository
2. Create a branch (git checkout -b feature/your-feature)
3. Commit changes (git commit -m 'Add amazing feature')
4. Push to branch (git push origin feature/your-feature)
5. Open a Pull Request

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License

MIT