[dragonwriter]

Are you just saying "Gmail has an API, and it is possible to authorize apps to access your Gmail via the API", which will be listed (along with every other app with access to your Google Account in any way) in your account permissions page @ https://myaccount.google.com/permissions

Or something else?

[wizzwizz4]

It would be very embarrassing if I were. I vaguely remember it being something Bad, but I didn't make notes on it.