cURL

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "http://blizzcmsv2.fixcore.fx/api/ApiAccount/user/5", //this is my website url
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET", //method
  CURLOPT_POSTFIELDS => "",
  CURLOPT_HTTPHEADER => array(
    "authorization: Basic MYCREDENTIAL", //this is my credential
    "content-type: multipart/form-data; boundary=---011000010111000001101001",
    "x-api-key: MYCODE@123" //this is my Api key
  ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}