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Claude Desktop

Gradus Notation for Claude Desktop

com.gradusmusic/notation

Gradus Notation + Harmonic Analyzer + Engraver: music tools for any AI agent. Free, no auth.

client:Claude Desktop transport:stdio runtime:npm

Install Gradus Notation in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "notation": {
      "command": "npx",
      "args": [
        "-y",
        "@gradusmusic/notation-mcp"
      ],
      "env": {
        "GRADUS_NOTATION_API_BASE": "<GRADUS_NOTATION_API_BASE>",
        "GRADUS_AGENT_NAME": "<GRADUS_AGENT_NAME>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

Gradus Notation in other clients

Gradus Notation MCP server