Zerista is a data-management service for event planners. It provides a suite of tools for organizers and exhibitors to organize their planning and maximize the value of the information in those stages. Its features include directories and profiles for the eventâ€™s participants, social and private communication channels, scheduling, social media integration, and more. The Zerista API exposes functionalities to all of those categories. It is a RESTful API that returns JSON and XML data.