This paper describes design and empirically study of a communication interface in molecular communication. The communication interface hides the characteristics of the molecules during the propagation from the sender to a receiver to allow a generic transport of molecules independent of the characteristics. The authors of this paper propose a communication interface that uses a vesicle embedded with channel forming proteins. The channel forming proteins embedded with the vesicle form communication channels between the vesicle itself and a sender/receiver. The proposed molecular communication interface uses vesicle to hide the characteristics of the molecules and the communication channels to encapsulate/decapsulate the molecules into/from the vesicle. The vesicle receives the molecules from the sender through the communication channels formed between the vesicle itself and the sender. The molecules are encapsulated in the vesicle, and their characteristics are hidden by the vesicle structure during the propagation to a receiver. At the receiver, the molecules are transferred into the receiver through the communication channels formed between the vesicle itself and the receiver. The authors of this paper constructed the vesicles embedded with channel forming proteins and the molecules were successfully encapsulated into the vesicle. It was also demonstrated that molecules were transferred through the communication channels.