MCPLow riskUnclaimed

PlayByKey Music Theory

Chords, scales, progressions, transposition, and MIDI tools for music theory AI agents.

playbykey.complaybykey.com/theory-mcp★ 1Updated Jul 28, 2026

server.json

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "com.playbykey/theory-mcp",
  "description": "Chords, scales, progressions, transposition, and MIDI tools for music theory AI agents.",
  "title": "PlayByKey Music Theory",
  "repository": {
    "url": "https://github.com/DigitalBrewLLC/playbykey-dev-tools",
    "source": "github",
    "subfolder": "packages/theory-mcp"
  },
  "version": "1.6.0",
  "packages": [
    {
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "identifier": "@playbykey/theory-mcp",
      "version": "1.6.0",
      "runtimeHint": "npx",
      "transport": {
        "type": "stdio"
      },
      "runtimeArguments": [
        {
          "value": "-y",
          "type": "positional"
        }
      ]
    }
  ]
}

Permissions

DeclaredDetected
Runs code—node
Installs—npm:@playbykey/theory-mcp@1.6.0
Runs install scripts—None
NetworkNoneNone
Needs credentialsNoneNone
Outside the workspace—None
Agent tools—None

Checks

Low risk · Nothing worth a warning was found.

Not reviewed by a person · Checked by rules; the model review is not switched on yet.

Versions

  1. #11.6.0latestOct 7, 2026