Hello,
now I can reply comments using “parent” parameter. But was needed to make a little change in plugin source code:
Version: 1.1.1
File: wp-content/plugins/json-api/models/comment.php
Line number: 52
Old Line: $_POST[‘parent’] = $_REQUEST[‘parent’];
New Line: $_POST[‘comment_parent’] = $_REQUEST[‘parent’];
Do you can try this solution?