If you want to add code yourself, you can use our PHP class to communicate with NOC-PS:
<?php
require_once ('/path/to/modules/servers/dedicated/autoload.php');
$handler = new nocps_Handler ('$pid', 'pid'); // replace $pid with tblhosting.id
$NocpsLoginDetails = $handler->getInstance()->login;
$api = $handler->getInstance()->api;
// https://www.noc-ps.com/downloads/PXE_API.html
// Execute API call like:
// $api->getAvailableBandwidthData($mac);