MusicBrainz MCP Server

Instructions

Implementation Reference

• mcp_musicbrainz/server.py:516-534 (handler)

  The `get_album_tracks` tool implementation, which fetches tracks for a release group from MusicBrainz.

  @mcp.tool()
  @cached_tool()
  def get_album_tracks(release_group_id: str) -> str:
      """Fetches the tracklist with durations for a release group (album/EP/single).
      Takes a release_group_id (NOT a release_id). For a specific release's tracklist,
      use get_release_details instead."""
      rg_result = musicbrainzngs.get_release_group_by_id(
          release_group_id, includes=["releases"]
      )
      releases = rg_result["release-group"].get("release-list", [])
      if not releases:
          return "No releases found for this release group."
  
      release_id = releases[0]["id"]
      release_details = musicbrainzngs.get_release_by_id(
          release_id, includes=["recordings"]
      )
      tracks = _format_tracks(release_details["release"].get("medium-list", []))
      return "\n".join(tracks) if tracks else "No tracks found."