DeepSeek MCP Server

A Model Context Protocol (MCP) server for the DeepSeek API, allowing seamless integration of DeepSeek's powerful language models with MCP-compatible applications like Claude Desktop.

Installation

npm install -g deepseek-mcp-server

Configuration

1. Get your DeepSeek API key from DeepSeek Platform

2. Set up your environment:

   export DEEPSEEK_API_KEY=your-api-key

   Or create a .env file:

   DEEPSEEK_API_KEY=your-api-key
   

Usage with Claude Desktop

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "deepseek": {
      "command": "npx",
      "args": [
        "-y",
        "deepseek-mcp-server"
      ],
      "env": {
        "DEEPSEEK_API_KEY": "your-api-key"
      }
    }
  }
}

Features

• Chat completion tool with support for:
  • Custom model selection
  • Temperature control
  • Max tokens limit
  • Top P sampling
  • Presence penalty
  • Frequency penalty

Testing with MCP Inspector

You can test the server locally using the MCP Inspector tool:

1. Build the server:

   npm run build

2. Run the server with MCP Inspector:

   # Make sure to specify the full path to the built server
   npx @modelcontextprotocol/inspector node ./build/index.js

The inspector will open in your browser and connect to the server via stdio transport. You can:

• View available tools
• Test chat completions with different parameters
• Debug server responses
• Monitor server performance

Note: The server uses DeepSeek's R1 model (deepseek-reasoner) by default, which provides state-of-the-art performance for reasoning and general tasks.

License

MIT