How to check account ID without command line?

I need to find out the account ID (i.e. the number, not the name) of an account on my instance, but I’m on managed hosting so I don’t have access to the command line.

Is there some way of doing this through the GUI?

I tried editing an account in the admin settings and it showed a single number in the URL, is that the account ID? (A single number would make sense as I have fewer than 10 accounts on the instance.)

You can use the API.

Simply try to open this url in your browser (replacing the account name and the instance url by the actual values): https://instance.url/api/v1/accounts/account_name@instance.url

This will give you the ID in your instance database. It can be different when you are on another instance (compare the id for those 2 urls: https://videos.john-livingston.fr/api/v1/accounts/john@videos.john-livingston.fr and https://www.yiny.org/api/v1/accounts/john@videos.john-livingston.fr : same account, but different ID).