The item-based widgets such as Frequently bought together, Frequently viewed together, Similar products, Top picks for you, Bestseller and Experience-Driven Recommendations use the unique identifier of the item on your site to show relevant recommendations.

Endpoints

Production: https://pathways.dxpapi.com/api/v2/widgets/item/{widget_id}
Staging: https://pathways-staging.dxpapi.com/api/v2/widgets/item/{widget_id}

The widget_id can be found in the Widget Configurator in the Dashboard.