Unified MCP Server

A unified MCP server that mounts multiple MCP servers using a mcp.json configuration file, similar to Claude Desktop and Cursor.

Quick Start

1. Configure servers in mcp.json:

{
  "mcpServers": {
    "playwright": {
      "command": "npx",
      "args": ["@playwright/mcp@latest"]
    },
    "context7": {
      "command": "npx",
      "args": ["@upstash/context7-mcp"]
    },
    "filesystem": {
      "command": "npx",
      "args": ["@modelcontextprotocol/server-filesystem", "/tmp"],
      "disabled": true
    }
  }
}

2. Run with Docker:

docker-compose up --build

3. Or run locally:

uv run main.py

Related MCP server: mcpd-proxy

Features

• Single Endpoint: Access all MCP servers through http://localhost:8929/mcp

• Tool Prefixing: All tools are prefixed with server name (e.g., playwright_navigate)

• Dynamic Mounting: Add/remove servers by editing mcp.json and restarting

• Built-in Management: Use list_servers and list_tools to inspect configuration

• HTTP Streaming: Full MCP-over-HTTP support with streaming protocol

Configuration

mcp.json Format

{
  "mcpServers": {
    "server-name": {
      "command": "executable",
      "args": ["arg1", "arg2"],
      "env": {
        "ENV_VAR": "value"
      },
      "disabled": false
    }
  }
}

• command: Executable to run

• args: Command line arguments

• env: Environment variables (merged with system env)

• disabled: Set to true to disable the server

Available Official Servers

• @playwright/mcp@latest - Web automation (22 tools)

• @upstash/context7-mcp - Documentation queries (2 tools)

• @modelcontextprotocol/server-filesystem - File operations

• @modelcontextprotocol/server-brave-search - Web search

• @modelcontextprotocol/server-sqlite - SQLite database

• @modelcontextprotocol/server-github - GitHub integration

Tools

Built-in Tools

• list_servers - Show all configured servers and their status

• list_tools - Show all available tools from mounted servers

Mounted Server Tools

All tools from mounted servers are prefixed with the server name:

• playwright_navigate - Navigate to a URL

• playwright_click - Click on elements

• context7_query-docs - Query documentation

• context7_resolve-library-id - Resolve library IDs

Testing

Use the MCP Inspector to test your server:

npx @modelcontextprotocol/inspector \
  --transport http \
  --url http://localhost:8929/mcp

Environment Variables

• HOST - Server host (default: localhost)

• PORT - Server port (default: 8929)

• DEBUG - Enable debug logging (default: false)