And remove the login requirement on the API as per bug 820614 comment 1.
I think this is done.
Verified as fixed in https://marketplace-dev.allizom.org/developers/validator on FF22 (Win 7) Attaching postfix screenshot. Closing bug.
That's a different validator which sadly doesn't use the API. This is about the API: http://zamboni.readthedocs.org/en/latest/topics/api/submission.html#validate