Hi and thanks for the reply! I signed up this weekend and have a paper-only account so far. I cannot trade with real money. Yes, it does begin with a "D"... so perhaps I have fallen through the cracks of namespace indicating capability. Has something has changed on IB's end?

Notice https://ibkr.info/article/566:
> Q: Can I open a paper trading account for practice purposes before opening a live account?
> IB does offer a paper trading account ...
> This account, however, is made available only after the regular trading account has been approved and funded.

Is there some other way to obtain a non-real account? If opening paper now requires a real account (e.g. "D"), then instead of parsing number namespace, Zorro could "ping" API indicators indicating user logged in via paper mode?