All Xignite APIs support both JSON and JSONP formats. To return data using the JSON format, use "json" as the extension for the service on the URL call.

JSONP or "JSON with padding" is a communication technique used in JavaScript programs that run in Web browsers. It provides a method to request data from a server in a different domain, something prohibited by typical web browsers because of the same-origin policy. To implement JSONP for any API call, you may add the following value pair to your querystring: "&_callback=yourFunction"

For more information on JSONP, check http://www.w3resource.com/JSON/JSONP.php