Sure 🙂
https://clear.ml/docs/latest/docs/references/sdk/task#get_reported_scalars

is there a way that i can pull all scalars at once?

I guess you mean from multiple Tasks ? (if so then the answer is no, this is on a per Task basis)

Or, can i get experiments list and pull the data?

Yes, you can use Task.get_tasks to get a list of task objects, then iterate over them. Would that work for you?
https://clear.ml/docs/latest/docs/references/sdk/task/#taskget_tasks

I think so, let me give it a try, btw, I just found server API but not sure how to use it, for example /debug.ping, should i post request on “ http://localhost:8080/debug/ping ” or “ http://localhost:8080/debug.ping ”?

Oh you can definitely use the RestAPI, but in this specific case, I'm not sure there is something better.
(BTW: Look for APIClient it a pythonic interface for the RestAPI)

the method you said before solved my problem. I ask about the API because i think that could be another way to get all experiment list

Thank you! another question this method seems need to get the result one by one on the fly. Because i have lots of complete experiments, is there a way that i can pull all scalars at once? Or, can i get experiments list and pull the data?

Thanks, i’ll give it a try

based on this:
https://clear.ml/docs/latest/docs/references/api/endpoints#post-debugping
" http://localhost:8080/debug.ping ”
btw: What'd the usage scenario ?