WHMCS 8 Vultr Module Note: Merged from PR to create function WHMCS Vultr 8 Addon System Requirements WHMCS version 8.x or newer PHP version 7.1.x or newer MySQL 5.6, MariaDB 5.6, MariaDB 10.0, or MariaDB 10.1 ionCube Loader Prerequisites Vultr API Key Your WHMCS Server IPs being whitelisted for API Access Installation & Configuration See the WHMCS Module documentation.