FrePPLe provides a state of the art REST API (see https://en.wikipedia.org/wiki/Representational_state_transfer) for data exchange with other applications.
Fast and efficient.
Supports multiple formats.
Open and extendible architecture, leveraging the excellent django REST framework from Tom Christie: see http://www.django-rest-framework.org/
When you access Help in the navigation Menu, you will find a API Help entry. This page allows you to test and experiment with the API from your browser. It shows all URLs and HTTP methods supported by the API.