IRSSI notifier - by pulling method

Is there an option in irssi to **get state about new unread private and public messages** by external application. If there is such option, i could periodically read that info from my bash script and do what i want with that, on any local or remote computer, when i want. notify.pl (irssi-libnotify) is great if you want to send notify to ONE X-server. It works for remote X-Server too. But impossible for multiple notify-clients, because it is EVENT-driven, when new message arrive, script must do something and information disappears (that is i think called PUSH strategy). for implementing PULLing (like mail pop or imap notifiers does for example), only thing that is needed is new-mesages-status... if it is available to external app, or at least to inside perl scripts (in documentation i only saw events - not status)