MCP Aggregator MCP Server

Universal MCP server aggregator for combining multiple MCP servers into a single endpoint

Local serverstdio

What is the MCP Aggregator MCP server?

MCP Aggregator MCP server exists for a simple reason — assistants are far more useful when they can act on MCP Aggregator directly instead of describing what you should do. Universal MCP server aggregator for combining multiple MCP servers into a single endpoint.

What you get

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

  • 🔍 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

Setting it up

The server ships on npm as @mcp/aggregator, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Choosing this one

This sits in the monitoring and observability group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. It is maintained by dwillitzer; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against MCP Aggregator's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the mcp aggregator mcp server does with a few real requests.

How to install the MCP Aggregator MCP server

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

Configuration as documented by the project. Restart the client after saving.

Frequently asked questions

It connects MCP Aggregator to MCP-compatible AI assistants such as Claude and Cursor. Instead of copying data back and forth by hand, the assistant works with MCP Aggregator directly.