Zillow API: XML to JSON

Heads up, I am new to API calls and the data return structures. I am trying to make a Zillow API call (which is in XML format), then convert to a JSON object. I have tried to implement the ‘xml-js’ library, but I am getting an error. Could someone offer some guidance on how to convert this XML data to JSON? Here is the XML string that the API returns:

<?xml version=\"1.0\" encoding=\"utf-8\"?>8803 North Catham64154Request successfully processed069458619https://www.zillow.com/homedetails/8803-N-Chatham-Ave-Kansas-City-MO-64154/69458619_zpid/http://www.zillow.com/homedetails/8803-N-Chatham-Ave-Kansas-City-MO-64154/69458619_zpid/#charts-and-datahttp://www.zillow.com/homes/69458619_zpid/http://www.zillow.com/homes/comps/69458619_zpid/8803 N Chatham Ave64154KANSAS CITYMO39.256802-94.6402629165SingleFamily2017230000.020051014928003.041212/21/201829200029864803/31/201925402837163135800121,600http://www.zillow.com/local-info/MO-Kansas-City/r_18795/http://www.zillow.com/kansas-city-mo/fsbo/http://www.zillow.com/kansas-city-mo/

Anything helps! Thank you!!