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modelmux MCP server

pure-maple/modelmux

Model multiplexer — route tasks to Codex, Gemini, and Claude CLIs with smart routing.

Install modelmux in Claude Code

Claude Code
claude mcp add modelmux -- uvx modelmux
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "modelmux": {
      "command": "uvx",
      "args": [
        "modelmux"
      ]
    }
  }
}

Frequently asked questions

What does the modelmux MCP server do?

Model multiplexer — route tasks to Codex, Gemini, and Claude CLIs with smart routing.

Is the modelmux MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does modelmux run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add modelmux to Claude Code?

Run: claude mcp add modelmux -- uvx modelmux

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