JuniorNapier 

The ADP Client Connection Library is intended to simplify and aid the process of authenticating, authorizing and connecting to the ADP Marketplace API Gateway. see GitHub page... More information

The ADP UserInfo Product Library can be used to obtain basic information about the user that is logging-in to the ADP application. see GitHub page (https://github.com/adplabs/adp-userinfo-NET) for more