I get an error while trying to signup using
$ op signin my.1password.com [email protected] A3-555555-RESTOFMYKEY
[LOG] 2017/10/12 17:33:33 (ERROR) 401: Authentication required.
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided
The only way that I'm able to get this to happen locally is if I typo the email address or secret key. Can you double check those?