MCP Aggregator

A universal aggregator that combines multiple MCP servers into a single endpoint.

GitHub

MCP Aggregator

A universal aggregator for combining multiple MCP (Model Context Protocol) servers into a single endpoint for AI assistants to access various tools and capabilities.

Features

  • 🔍 Auto-Discovery - Automatically finds installed MCP servers
  • 🚀 Zero Configuration - Works out of the box with sensible defaults
  • 🔧 Highly Configurable - Customize every aspect when needed
  • 🏗️ Multi-Server Support - Aggregate multiple MCP servers
  • 🔄 Hot Reload - Add/remove servers without restart
  • 📊 Health Monitoring - Automatic health checks and recovery
  • 🔒 Secure by Default - No hardcoded secrets or paths

Quick Start

# Install globally
npm install -g @mcp/aggregator

# Run setup
mcp-aggregator setup

# Start the aggregator
mcp-aggregator start

Installation

From npm

npm install -g @mcp/aggregator

From Source

git clone https://github.com/dwillitzer/mcp-aggregator.git
cd mcp-aggregator
npm install
npm run build
npm link

Using Docker

docker pull ghcr.io/dwillitzer/mcp-aggregator:latest
docker run -d -p 3000:3000 ghcr.io/dwillitzer/mcp-aggregator:latest

Configuration

The aggregator uses a flexible configuration system:

  1. Environment Variables - Override any setting
  2. Config File - ~/.mcp/aggregator/config.json
  3. Auto-Discovery - Finds servers automatically
  4. Defaults - Sensible defaults for everything

Basic Configuration

{
  "aggregator": {
    "port": 3000,
    "host": "localhost"
  },
  "servers": {
    "filesystem": {
      "enabled": true,
      "command": "mcp-server-filesystem"
    },
    "shell": {
      "enabled": true,
      "command": "mcp-server-shell"
    }
  }
}

Available MCP Servers

The aggregator can work with any MCP-compliant server. Common servers include:

  • filesystem - File operations (read, write, list)
  • shell - Command execution
  • git - Version control operations
  • browser - Web automation
  • slack - Slack integration
  • github - GitHub operations
  • 1password - Secret management

Usage with Claude

Claude Desktop

Add to your Claude Desktop configuration:

{
  "mcpServers": {
    "aggregator": {
      "command": "mcp-aggregator",
      "args": ["start", "--stdio"]
    }
  }
}

Claude Guard

The aggregator integrates seamlessly with Claude Guard:

# Auto-detected if installed
claude-guard --mcp-status

# Or specify custom path
claude-guard --mcp-aggregator /path/to/aggregator

Documentation

Development

# Clone repository
git clone https://github.com/dwillitzer/mcp-aggregator.git
cd mcp-aggregator

# Install dependencies
npm install

# Run in development mode
npm run dev

# Run tests
npm test

# Build for production
npm run build

Contributing

Contributions are welcome! Please read our Contributing Guide for details on our code of conduct and the process for submitting pull requests.

License

This software is proprietary to Daniel Willitzer with specific usage permissions.

Key points:

  • ✅ Free to use, modify, and distribute
  • ✅ Commercial use allowed
  • ⚠️ Derivative works MUST declare: "This is a derivative work based on MCP Aggregator by Daniel Willitzer"
  • ⚠️ Must indicate modifications made

See LICENSE for full details.

Security

For security issues, please email daniel@willitzer.com instead of using the issue tracker.

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