imdb-mcp-server

Instructions

Implementation Reference

• src/imdb_mcp_server/tools.py:116-128 (handler)

  The core handler implementation for the 'get_cast' MCP tool. It fetches the cast list from the IMDb API using the provided imdb_id and returns JSON-formatted data. Registered via @mcp.tool() decorator.

  @mcp.tool()
  async def get_cast(imdb_id: str, ctx: Context) -> str:
      """Get the cast of a movie from IMDb.
      Args:
          imdbId: The IMDb ID of the movie to get cast for.
      Returns:
          JSON object containing the cast of the movie.
      """
      cast_url = f"{BASE_URL}/{imdb_id}/cast"
      cast_data = await make_imdb_request(cast_url, {}, ctx)
      if not cast_data:
          return "Unable to fetch cast data for this movie or movie not found."
      return json.dumps(cast_data, indent=4)

• src/imdb_mcp_server/main.py:22-23 (registration)

  The call to register_tools(server) in the MCP server initialization, which registers all tools including 'get_cast'.

  # Register all tools with the server
  register_tools(server)

• src/imdb_mcp_server/api.py:14-56 (helper)

  Key helper function called by get_cast to perform the actual HTTP request to the IMDb RapidAPI, handling authentication, caching, and error management.

  async def make_imdb_request(url: str, querystring: dict[str, Any], ctx: Optional[Context] = None) -> Optional[Dict[str, Any]]:
      """Make a request to the IMDb API with proper error handling and caching."""
      
      # Check if it's time to clean the cache
      cache_manager.cleanup_if_needed()
      
      # Create a cache key from the URL and querystring
      cache_key = f"{url}_{str(querystring)}"
      
      # Try to get from cache first
      cached_data = cache_manager.cache.get(cache_key)
      if cached_data:
          return cached_data
      
      # Get API key from session config or fallback to environment variable
      api_key = None
      if ctx and hasattr(ctx, 'session_config') and ctx.session_config:
          api_key = ctx.session_config.rapidApiKeyImdb
      
      if not api_key:
          api_key = os.getenv("RAPID_API_KEY_IMDB")
      
      # Not in cache, make the request
      headers = {
          "x-rapidapi-key": api_key,
          "x-rapidapi-host": "imdb236.p.rapidapi.com",
      }
      
      if not api_key:
          raise ValueError("API key not found. Please set the RAPID_API_KEY_IMDB environment variable or provide rapidApiKeyImdb in the request.")
      
      try:
          response = requests.get(url, headers=headers, params=querystring, timeout=30.0)
          response.raise_for_status()
          data = response.json()
          
          # Cache the response
          cache_manager.cache.set(cache_key, data)
              
          return data
      except Exception as e:
          raise ValueError(f"Unable to fetch data from IMDb. Please try again later. Error: {e}")

• src/imdb_mcp_server/api.py:11-11 (helper)

  The base URL constant used to construct the cast API endpoint in get_cast: f'{BASE_URL}/{imdb_id}/cast'.

  BASE_URL = "https://imdb236.p.rapidapi.com/api/imdb"

• src/imdb_mcp_server/main.py:61-61 (registration)

  Alternative registration call in stdio transport mode.

  register_tools(server)