Server aggregator of messengers?

Question

Skype

Are there any ready-made messenger aggregators that work as a server?
The task is to launch an aggregator on the server that would receive / transmit messages via several protocols (mainly Skype and Vkontakte), working as a gateway under the control of the client (say, via jabber).
There are many aggregators working on the client side - the same Pidgin or Miranda. There are enough Jabber servers too.
But for some reason, I did not find systems that combine these functions - although, it would seem, the task is important and lying on the surface.
If there is something ready - please tell me.
If there are any reasons why there is no ready-made one, please explain why they are not there. Because it's very surprising.

Answer 1

There are currently no reliable developments for Skype.
Because proprietary and client and server and protocol. Reverse engineering is lagging behind.
The purple-skypeweb plugin seems to be unstable.
And the bottom line is that Skype has not been #1 for a long time.
And therefore, those who need convenient notifications have given up on reverse engineering and quite easily switched to messengers with a normal and convenient API from developers (telegram, whatsapp, etc).

Answer 2

And what a surprise. The Skype protocol is closed, Microsoft protects it, there are no third-party clients for it, even the integration API has been curtailed. So somehow without it :)