Using the API Flow modeler The API Flows modeler is comparable to other ION modelers, such as data flow and workflow. Open the menu by clicking the hamburger icon. Select Connect > API Flows. An overview of existing API flows is displayed. Click +Add to open the modeler. Specify a name for the API flow. Specify the API Flow properties. See API Flow Properties. Model the API calls by dragging items from the toolbox to the model line between the Start and the Endpoints. See API Flow elements.