MusicDB

A remote MCP server that exposes the MusicBrainz API as tools for AI assistants. Runs on Cloudflare Workers.

Live Endpoint

https://musicdb-mcp.musicdb.workers.dev/mcp

Adding to Your AI Assistant

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "musicdb": {
      "url": "https://musicdb-mcp.musicdb.workers.dev/mcp"
    }
  }
}

Claude.ai

Go to Settings > Integrations > Add custom integration and enter:

https://musicdb-mcp.musicdb.workers.dev/mcp

Any MCP Client

Point your MCP client at the URL above using Streamable HTTP transport.

Tools

Core Tools

Tool	Description
musicbrainz_lookup	Look up any entity by its MusicBrainz ID (MBID)
musicbrainz_browse	Browse entities linked to another entity (e.g. all releases by an artist)
musicbrainz_search	Search using Lucene query syntax (e.g. artist:radiohead)
musicbrainz_lookup_by_resource	Look up by ISRC, ISWC, or disc ID

Convenience Tools

Tool	Description
musicbrainz_get_tracklist	Formatted tracklist for a release with durations and credits
musicbrainz_get_genres	Genres and community tags for an entity
musicbrainz_get_release_events	Release dates and countries worldwide
musicbrainz_url_lookup	Find MusicBrainz entities from Spotify, Wikipedia, Discogs links
musicbrainz_get_discography	Full artist discography organized by type
musicbrainz_get_credits	Production credits and relationships for a recording or release
musicbrainz_get_artist_relationships	Band members, collaborators, and external links
musicbrainz_find_covers	All recordings of a musical work (covers, live versions)
musicbrainz_compare_releases	Side-by-side comparison of two releases

Example Prompts

• "Who are the members of Radiohead?"
• "Find the tracklist for Abbey Road"
• "What genres is Kendrick Lamar tagged with?"
• "Compare the US and UK editions of this album"
• "Find cover versions of Hallelujah"
• "What MusicBrainz entry does this Spotify link point to?"

Development

npm install
npm run dev              # Start local dev server on port 8787
npm run deploy           # Deploy to Cloudflare Workers

Test locally with MCP Inspector:

npx @modelcontextprotocol/inspector
# Enter http://localhost:8787/mcp as the server URL

Tech Stack

• Runtime: Cloudflare Workers
• MCP SDK: @modelcontextprotocol/sdk + agents (Cloudflare transport)
• Validation: Zod
• Caching: Cloudflare Cache API (24h lookups, 6h browses, 1h searches)
• Rate Limiting: 1.05s minimum between upstream requests + retry on 503/429

License

MIT