https://eauth.us.to/ - Your #1 Free and Powerful Software Authentication Solution, Ultimately providing you with the most secure features and easy to use on an authentication system.
Navigate to eauth/eauth.go, and fill these lines of code:
// Required configuration
const accountKey string = "" /* Your account key goes here */
const applicationKey string = "" /* Your application key goes here */
const applicationID string = "" /* Your application ID goes here */
const applicationVersion string = "1.0" /* Your application version goes here */