Widget Endpoint: The <ROOT_URL> will depend on the environment where we are working. 

ROOT_URL QLY   

https://api-qly.sibspayments.com

ROOT_URL PRD 

https://api.sibspayments.com 

To be a valid Merchant on SIBS Gateway V02.00 it will be necessary to have an authorisation token (<AuthToken>), <terminalId>.