I was wondering if is possible to use API to display information, like account balance or website disk usage on our own custom panel.
christoschiotis all of that is getting added.
If you give me a list of what you want to see now I can get it added first.
Good news it's next in line and should be online within about a week or so. You will be able to ask the API for a list of your sites and it will also include stats or ask for a site specific by ID or your SSH username.