I was looking at the docs and I couldn't find anything regarding certificate (trust) when it comes to API. Is this not available in latest version and if it's not, is there any plans for the certificate management via API for the near future?
there is some movement towards the MVC.
https://github.com/opnsense/core/pull/5483
but there is no api call for cert issue (yet?). imho task does not look so trivial, starting with the creation of the csr. (trying to use a firewall as a certification authority? ;) )