get https://externalapi.retailrocket.net/api/3.0/productRecommendations/relatedWithoutCurrentCategoryForLastAddedToBasketProducts/
The algorithm returns related products to the last items added to the cart. Products belonging to the same category as the current product are removed from the recommendations of related products.
Link
link
consists of a name and a value, in the query string the name and value are separated by a comma, example: link=card,12345, where card is the name and 12345 is the value.