GeoServer MCP Server

Instructions

Args:
    workspace: Optional workspace to filter layers

Returns:
    List of layer information dictionaries

Implementation Reference

• src/geoserver_mcp/main.py:198-222 (handler)

  The handler function for the 'list_layers' MCP tool. It connects to GeoServer via the Geoserver client, lists layers (optionally filtered by workspace), and returns a list of layer dictionaries. The @mcp.tool() decorator registers it as an MCP tool.

  @mcp.tool()
  def list_layers(workspace: Optional[str] = None) -> List[Dict[str, Any]]:
      """List layers in GeoServer, optionally filtered by workspace.
      
      Args:
          workspace: Optional workspace to filter layers
      
      Returns:
          List of layer information dictionaries
      """
      geo = get_geoserver()
      if geo is None:
          raise ValueError("Not connected to GeoServer")
      
      try:
          # Use the actual GeoServer REST API to list layers
          if workspace:
              layers = geo.get_layers(workspace)
          else:
              layers = geo.get_layers()
          
          return layers
      except Exception as e:
          logger.error(f"Error listing layers: {str(e)}")
          raise ValueError(f"Failed to list layers: {str(e)}")