mcx

mcx

CLI for running mcp servers with mathom.

Installation

npm install -g mcx

Build from source

git clone https://github.com/stephenlacy/mathom.git
cd mathom/mcx
npm install
npm run build
npm link

Configuration

mcx requires connection to your mathom instance. Set the environment variable or use the default:

export MATHOM_URL=http://localhost:5050

Authentication

Authenticate with your Mathom instance:

mcx auth login

Usage

Launch an MCP server by name or package:

mcx my-mcp-server

mcx @modelcontextprotocol/server-filesystem

mcx my-server -- --custom-arg value

You can also use the inspector:

npx @modelcontextprotocol/inspector mcx @modelcontextprotocol/server-everything

Claude/Cursor

~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "myServer": {
      "command": "mcx",
      "args": ["-y", "my-mcp-server"],
      "env": {
        "MATHOM_URL": "http://localhost:5050"
      }
    }
  }
}

Troubleshooting

Connection refused

• Verify Mathom instance is running
• Check MATHOM_URL environment variable
• Ensure Docker is running

Authentication failed

• Run mcx auth login to refresh tokens
• Verify Mathom dashboard is responding

Container startup timeout

• Ensure Docker images are available (check if you built the local images)
• Check system resource availability
• Review logs with docker logs

License

MIT License

Contributing

Contributions are welcome!