When it comes to connecting applications or devices on the Internet, APIs are the way. If someone needs to use data or services from another application or platform, he has to communicate with these APIs. In order to do so, he has to write & maintain code on the client side responsible for managing all aspects of that communication.This is a time consuming, repetitive work that often requires specific programmers dedicated to this task alone, especially in enterprises where interoperating with external APIs is part of the core business (e.g. online travel agencies). We built a set of tools that significantly minimizes the time and effort required to perform this task by making it possible to modify all necessary data and services so that they can automatically be obtained in an appropriate form. Through our platform, users will be able to modify existing private or public APIs and services on different levels using an intuitive graphical interface in no time.