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Mux

Verified Integration
Author: @jasonwarta•Category: ServerApplication
GitHub Repository
JSON-RPC 2.0
Protocol Standard
Sub-second
Execution Latency
Active
Operational Status
Tags:#Claude#Search#Database#API#Git#Filesystem#AI#GitHub#Node.js

Client Configuration

— Connect Mux to Claude Desktop or Cursor in seconds
{
  "mcpServers": {
    "mux": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-mux"
      ],
      "env": {}
    }
  }
}
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).
Architecture & Capabilities

System Overview

Multiplexes stdio-based MCP servers, allowing Claude Code to share backend server processes across multiple sessions and significantly reduce process overhead.

Indexed Date

7/23/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Mux

Mux is designed for simple setup. You define your backend servers in a `.mcp-mux.json` file and point Claude Code to the Mux shim. The broker auto-starts on first use and auto-exits after inactivity, requiring no manual daemon management.

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