Gradus Notation MCP

An MCP server provided by Gradus Music that enables AI agents to render music notation into SVG, MusicXML, and MIDI; validate scores; analyze harmonic theory; and check engraving rules against a curated knowledge base.

Visit Gradus Music

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Vendor evidenceLocal stdioSource reviewed; not executedOperated by Gradus Music

You need:No auth, no key — just credit Gradus when you surface notation to your end user.

Vendor documentation

What you can do with it

Render JSON scores to inline SVG, MusicXML, and MIDI
Analyze full-score music theory including Roman numerals and key detection
Validate input scores with pre-flight error checking
Check scores against the Gradus Engraving Rulebook

Source and maintenance

Vendor evidenceRegistry 0.8.0

mcp-registry: com.gradusmusic/notation@0.8.0 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@gradusmusic/notation-mcp 0.8.0

npm

@gradusmusic/notation-mcp package definition

{
  "version": "0.8.0",
  "transport": "stdio",
  "identifier": "@gradusmusic/notation-mcp",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "GRADUS_NOTATION_API_BASE",
      "format": "string",
      "description": "Override the API base URL. Defaults to https://gradusmusic.com."
    },
    {
      "name": "GRADUS_AGENT_NAME",
      "format": "string",
      "description": "Self-reported agent name sent in the X-Agent-Name header for telemetry attribution."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "gradus-notation-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@gradusmusic/notation-mcp@0.8.0"
      ],
      "env": {
        "GRADUS_NOTATION_API_BASE": "<YOUR_GRADUS_NOTATION_API_BASE>",
        "GRADUS_AGENT_NAME": "<YOUR_GRADUS_AGENT_NAME>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "gradus-notation-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@gradusmusic/notation-mcp@0.8.0"
      ],
      "env": {
        "GRADUS_NOTATION_API_BASE": "<YOUR_GRADUS_NOTATION_API_BASE>",
        "GRADUS_AGENT_NAME": "<YOUR_GRADUS_AGENT_NAME>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "gradus-notation-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@gradusmusic/notation-mcp@0.8.0"
      ],
      "env": {
        "GRADUS_NOTATION_API_BASE": "<YOUR_GRADUS_NOTATION_API_BASE>",
        "GRADUS_AGENT_NAME": "<YOUR_GRADUS_AGENT_NAME>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "gradus-notation-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@gradusmusic/notation-mcp@0.8.0"
      ],
      "env": {
        "GRADUS_NOTATION_API_BASE": "<YOUR_GRADUS_NOTATION_API_BASE>",
        "GRADUS_AGENT_NAME": "<YOUR_GRADUS_AGENT_NAME>"
      }
    }
  }
}

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