My account at "http://www.codeivate.com/users/alex-lamson" doesn't have a working signature or 7 days page.
My guess is the space in the name.
EDIT: The beta API isn't working for me either.
the space seems to be the problem I will fix it today.
Fixed! You will need to code for a minute or so for data to go through system and make the .json page work. Signature page should work right now.
Customer support service by UserEcho