get https://externalapi.retailrocket.net/api/3.0/productRecommendations/accessories
The algorithm returns related products from accessories categories that are most likely to be purchased along with the product that the user is viewing or that is contained in his cart.
Link
linkconsists 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.