Disclosed are techniques to enable users to perform transactions such as purchasing items or receiving information regarding items depicted within a content stream, where the content stream may be received from a content provider and provided to an output device. Transactions may be performed by a user that may or may not be associated with a content provider or associated with an item offering service. In one example, a content stream may be analyzed to detect a depiction of an item, and a user may operate a user interface overlaid onto the displayed content stream to perform transactions such as initiating a purchase or requesting more information on the detected items.