tracktag-mcp

TrackTag MCP Server

Let AI agents (Claude Desktop, Claude Code, Cursor, and any MCP-capable client) analyze music with TrackTag: drop an MP3 into your agent, say "analyze this track", and get BPM, key, genres, moods, instruments, energy and 35+ metadata fields back.

Runs locally over stdio — nothing is hosted, the server only lives while your agent app is open. Analyses are billed from your TrackTag credit balance (1 credit per track with the core model, 2 with ultra); failed analyses are refunded automatically.

Setup

• Get an API key: tracktag.me/studio → API & MCP → Create key (tt_live_…).
• Add the server to your agent's MCP config:

Claude Desktop (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "tracktag": {
      "command": "npx",
      "args": ["-y", "tracktag-mcp"],
      "env": { "TRACKTAG_API_KEY": "tt_live_YOUR_KEY" }
    }
  }
}

Claude Code:

claude mcp add tracktag -e TRACKTAG_API_KEY=tt_live_YOUR_KEY -- npx -y tracktag-mcp

Cursor (~/.cursor/mcp.json): same JSON block as Claude Desktop.

Tools

Tool	What it does	Cost
analyze_track	Analyze a local audio file (mp3/wav/flac/aiff/m4a/ogg, ≤15 MB)	1–2 credits
analyze_url	Analyze audio from any https URL (≤60 MB)	1–2 credits
get_credits	Remaining credit balance and limits	free
list_recent_jobs	Recent API analyses	free

Docs

Full API reference: tracktag.me/developers