This module is a good helper module for those modules which builds extra functionalities over the Gitlab module in Drupal (ex.: Gitlab File Field). With this module the administrators could store Gitlab accounts in the Drupal and the developers could work with these accounts in their modules.
Module amoCRM API is designed for developers. Install it only if you want to use dependent modules. The module provides amoCRM interaction interface with the help of simple functions and allows to extend the capabilities of integration.