Custom MCP Server

Custom MCP Server

A custom Machine Conversation Protocol (MCP) server that integrates various tools for AI assistants:

• Brave Search - Web and local search capabilities
• Secure Filesystem - File operations with security controls
• GitHub Integration - Repository and code management
• Sequential Thinking - Step-by-step problem solving
• Download Utility - Download files from the internet

Quick Start

# Clone the repository
git clone https://github.com/degenhero/custom-mcp-server.git
cd custom-mcp-server

# Install dependencies and set up environment
npm run install:all

# Start both servers
npm run start:both

The servers will run at:

• MCP Server: http://localhost:3000
• MCP Protocol Server: http://localhost:3001

Usage with Claude

To use this custom MCP server with Claude, you need to install it as an MCP server:

npx @anthropic-ai/install-mcp custom-mcp-server http://localhost:3001

After installation, Claude will have access to all the functions provided by this server.

Architecture

This project consists of two main components:

1. Custom MCP Server (index.js) - The core server that implements all the tool functions
2. MCP Protocol Server (mcp-protocol.js) - Adapts the custom server to the MCP protocol standard

Available Functions

Brave Search

• brave_web_search - Perform web searches
• brave_local_search - Search for local businesses and places

Filesystem Operations

• read_file - Read file contents
• write_file - Create or update files
• edit_file - Make line-based edits
• create_directory - Create directories
• list_directory - List directory contents
• And more...

GitHub Integration

• create_repository - Create new repositories
• search_repositories - Search for repositories
• get_file_contents - Read files from repositories
• push_files - Push files to repositories
• And more...

Sequential Thinking

• sequentialthinking - Step-by-step problem solving

Download Utility

• download_file - Download files from URLs
• download_multiple_files - Download multiple files at once

Configuration

Configuration is managed through environment variables in a .env file:

PORT=3000                      # Port for the main server
MCP_PROTOCOL_PORT=3001         # Port for the MCP protocol server
BRAVE_API_KEY=your_key_here    # API key for Brave Search
GITHUB_TOKEN=your_token_here   # GitHub access token

Development

Adding New Functions

To add a new function:

1. Create a handler in the appropriate file in the functions directory
2. Add the function definition to mcp-schema.json
3. Update the routing in index.js

Testing

You can test functions directly against the MCP server:

curl -X POST http://localhost:3000/mcp \
  -H "Content-Type: application/json" \
  -d '{"functionName": "brave_web_search", "parameters": {"query": "test query"}}'

Documentation

For detailed documentation on all available functions, see documentation.md.

License

This project is licensed under the MIT License - see the LICENSE file for details.