The X-Sharing Services Integrator (formerly known as Mobility Broker Adapter) implements the Interface for X-Sharing Information (IXSI). In a travel information system, it serves as the only communication point with car- and bikesharing services. Collecting station and vehicle information, tracking of their availability updates are some of its responsibilities. It is therefore the mediator between x-sharing services and remote components of the travel information system (the communication with the latter is achieved via RESTful interfaces) about such information and operations related to booking of vehicles.