Hi @<1573119955400921088:profile|CloudyPelican46> , what do you mean by active users? People who are currently logged on to the web UI or people who are running experiments currently or just all users registered to the server?

People who currently running experiments

Thanks. That's the route I took. Another question if I do /tasks.get_all_ex?last_update=>2023-06-13T11:34:33.064629 but if query projects with the same format I am getting validation error (Min and max values should be specified for range field last_update)"

I don't think there is a specific API call for that but you can fetch all the running experiments and then check which users are running them

I would suggest opening dev tools (F12) and then filtering in the UI and see what is sent there