Can I update the user field automatically via API or otherwise?

case: I’d like to change some users’ information in the user’s fields once every 1-2 week. What’s the easiest way to do that? Post request ?

Yes you can use the API for that. Check How to reverse engineer the Discourse API for details.


thx, what if i want the user field to be displayed in the post under the avatar? How to do it ?

I suggest reading Developer’s guide to Discourse Themes.