The application provides a Graphical User Interface (GUI) which members can supplement or even replace with proprietary or third-party applications. In all cases, the user interface screens are supported in terms of their data content through the functions offered by VALUES API (Virtual Access Link Using Exchange Services Application Programming Interface). VALUES API is a programmable interface, which provides the functionality, and flexibility needed to serve as a standard open interface between front-end applications and back-end Exchange services.

The VALUES API supports asynchronous data transfer (broadcasts) between front-end applications and the exchange central system. Synchronous processing may be built on top of the VALUES API, but it is not provided by the VALUES API.