QGISMCP

Instructions

Implementation Reference

• src/qgis_mcp/qgis_mcp_server.py:201-206 (handler)

  MCP tool handler for 'get_layers': proxies the command to the underlying QGIS socket server via get_qgis_connection().
  @mcp.tool() def get_layers(ctx: Context) -> str: """Retrieve all layers in the current project.""" qgis = get_qgis_connection() result = qgis.send_command("get_layers") return json.dumps(result, indent=2)
• qgis_mcp_plugin/qgis_mcp_plugin.py:284-311 (handler)

  Core implementation of get_layers command in QGIS plugin: iterates over project layers, collects detailed info including type-specific details, visibility, etc.
  def get_layers(self, **kwargs): """Get all layers in the project""" project = QgsProject.instance() layers = [] for layer_id, layer in project.mapLayers().items(): layer_info = { "id": layer_id, "name": layer.name(), "type": self._get_layer_type(layer), "visible": project.layerTreeRoot().findLayer(layer_id).isVisible() } # Add type-specific information if layer.type() == QgsMapLayer.VectorLayer: layer_info.update({ "feature_count": layer.featureCount(), "geometry_type": layer.geometryType() }) elif layer.type() == QgsMapLayer.RasterLayer: layer_info.update({ "width": layer.width(), "height": layer.height() }) layers.append(layer_info) return layers
• qgis_mcp_plugin/qgis_mcp_plugin.py:133-149 (registration)

  Registration of the 'get_layers' handler in the QGIS socket server's command handlers dictionary.
  handlers = { "ping": self.ping, "get_qgis_info": self.get_qgis_info, "load_project": self.load_project, "get_project_info": self.get_project_info, "execute_code": self.execute_code, "add_vector_layer": self.add_vector_layer, "add_raster_layer": self.add_raster_layer, "get_layers": self.get_layers, "remove_layer": self.remove_layer, "zoom_to_layer": self.zoom_to_layer, "get_layer_features": self.get_layer_features, "execute_processing": self.execute_processing, "save_project": self.save_project, "render_map": self.render_map, "create_new_project": self.create_new_project, }
• qgis_mcp_plugin/qgis_mcp_plugin.py:212-219 (helper)

  Helper function used by get_layers to determine and format layer type string.
  def _get_layer_type(self, layer): """Helper to get layer type as string""" if layer.type() == QgsMapLayer.VectorLayer: return f"vector_{layer.geometryType()}" elif layer.type() == QgsMapLayer.RasterLayer: return "raster" else: return str(layer.type())