//-- Intent: Delete the contact list with ListCode of 123456 --// $.ajax({ type: "DELETE", contentType: "application/json; charset=utf-8", headers: {"SwiftAPI-Key": "12345"}, url: "http://api.v4.swiftreach.com/api/ContactLists/Delete/123456", dataType: "json" success: function(result) { // Do something with the result } }); <!-- example return value --> 0