TIDAL MCP Server

Instructions

Implementation Reference

• src/tidal_mcp/server.py:992-1045 (handler)

  The handler function implementing the get_artist_albums tool. It authenticates, fetches the artist, retrieves their albums via tidalapi, constructs Album objects, and returns an AlbumList.

  @mcp.tool()
  async def get_artist_albums(artist_id: str, limit: int = 20) -> AlbumList:
      """
      Get albums by an artist (discography).
  
      Args:
          artist_id: ID of the artist
          limit: Maximum albums to return (default: 20, max: 50)
  
      Returns:
          List of albums by the artist
      """
      if not await ensure_authenticated():
          raise ToolError("Not authenticated. Please run the 'login' tool first.")
  
      try:
          limit = min(max(1, limit), 50)
  
          artist = await anyio.to_thread.run_sync(session.artist, artist_id)
          if not artist:
              raise ToolError(f"Artist with ID '{artist_id}' not found")
  
          artist_albums = await anyio.to_thread.run_sync(
              lambda: artist.get_albums(limit=limit)
          )
  
          albums = []
          for album in artist_albums:
              release_date = None
              if hasattr(album, "release_date") and album.release_date:
                  release_date = str(album.release_date)
  
              albums.append(
                  Album(
                      id=str(album.id),
                      title=album.name,
                      artist=album.artist.name if album.artist else artist.name,
                      release_date=release_date,
                      num_tracks=getattr(album, "num_tracks", 0),
                      duration_seconds=getattr(album, "duration", 0),
                      url=f"https://tidal.com/browse/album/{album.id}",
                  )
              )
  
          return AlbumList(
              status="success",
              count=len(albums),
              albums=albums,
          )
      except ToolError:
          raise
      except Exception as e:
          raise ToolError(f"Failed to get artist albums: {str(e)}")

• src/tidal_mcp/models.py:71-77 (schema)

  Pydantic BaseModel defining the output structure AlbumList for the get_artist_albums tool response.

  class AlbumList(BaseModel):
      """List of albums with metadata."""
  
      status: str = Field(description="Operation status (success/error)")
      query: Optional[str] = Field(None, description="Search query used (for search results)")
      count: int = Field(description="Number of albums returned")
      albums: List[Album] = Field(description="List of album objects")

• src/tidal_mcp/models.py:27-37 (schema)

  Pydantic BaseModel defining the Album entity used within the AlbumList output of get_artist_albums.

  class Album(BaseModel):
      """Structured representation of a TIDAL album."""
  
      id: str = Field(description="Unique TIDAL album ID")
      title: str = Field(description="Album title")
      artist: str = Field(description="Primary artist name")
      release_date: Optional[str] = Field(None, description="Release date (YYYY-MM-DD)")
      num_tracks: int = Field(description="Number of tracks in album")
      duration_seconds: int = Field(description="Total album duration in seconds")
      url: str = Field(description="TIDAL web URL for the album")

• src/tidal_mcp/server.py:120-151 (helper)

  Helper function used by get_artist_albums to ensure user authentication before API calls.

  async def ensure_authenticated() -> bool:
      """
      Check if user is authenticated with TIDAL.
      Automatically loads persisted session if available.
      """
      if await anyio.Path(SESSION_FILE).exists():
          try:
              async with await anyio.open_file(SESSION_FILE, "r") as f:
                  content = await f.read()
                  data = json.loads(content)
  
              # Load OAuth session
              result = await anyio.to_thread.run_sync(
                  session.load_oauth_session,
                  data["token_type"]["data"],
                  data["access_token"]["data"],
                  data["refresh_token"]["data"],
                  None,  # expiry time
              )
  
              if result:
                  is_valid = await anyio.to_thread.run_sync(session.check_login)
                  if not is_valid:
                      await anyio.Path(SESSION_FILE).unlink()
                  return is_valid
              return False
          except Exception:
              await anyio.Path(SESSION_FILE).unlink()
              return False
  
      return await anyio.to_thread.run_sync(session.check_login)