Responds to a GET request to /recommendWithContext/[userID]/([itemID1(=value1)]/...)(?howMany=n)(&offset=o)(&considerKnownItems=c)(&rescorerParams=...) This endpoint operates like a combination of /recommend and /recommendToAnonymous . It creates recommendations for a user, but modifies the recommendation as if the user also interacted with a given set of items. This creates no model updates. It's useful for recommending in the context of some possibly temporary interactions, like products in a basket. howMany , considerKnownItems and offset behavior, and output, are as in Recommend .