jQuery

var form = new FormData();

var settings = {
  "async": true,
  "crossDomain": true,
  "url": "http://blizzcmsv2.fixcore.fx/api/ApiAccount/user/5", //this is my website url
  "method": "GET", //method
  "headers": {
    "x-api-key": "MYCODE@123", //this is my Api key
    "authorization": "Basic MYCREDENTIAL" //this is my credential
  },
  "processData": false,
  "contentType": false,
  "mimeType": "multipart/form-data",
  "data": form
}

$.ajax(settings).done(function (response) {
  console.log(response);
});