To access the APIs, the listening port must be allowed, and connections must be made over HTTP to that port.Sometimes, to validate a specific path, it's useful to have a command-line client available.
This feature is available on Artica v4.50 Service Pack 3 or Artica v4.50 Service Pack 2 HotFix 20250515-18
The command line
/usr/share/artica-postfix/bin/articarest -rest-api /harmp/status
simulate a GET query to the REST API using the unix socket of the REST API service and /harmp/status is the API path to perform the GET