I haven't used 1Password before, but I know LastPass offers multifactor authentication via your mobile app of choice[0], which comes to essentially the same thing.
Once you've set it up, you require two passwords to log in: one you memorise; the other you read off your mobile app, and is regenerated every 30 seconds.
[0] https://helpdesk.lastpass.com/security-options/#Multifactor+...