Is there a problem with api login, 2017-09-28?

I've been connecting to the api all morning with the humanity sdk for php, but about 2 hours ago I started getting a message that the login failed. This is happening in dev and in production. The code in production hasn't been changed for at least 4 months.

I noticed some transient problems yesterday, 2017-09-27 as well. But waiting 30 seconds fixed it.

I didn't see anything in the terms about number of logins per minute. Will the account eventually unlock on its own?