As far as I know, it is not. And, in opposite to MP1, it is not necessary at all. In MP2 you don't need external stuff like Trakt to keep all clients in sync. They are always in sync. This is guaranteed by the concept of MP2 with the centralized server.Is the sync two way for watched flags? Trakt -> MP2.
Why do this external? There is a tool to backup and restore all watched flags and also an automated tool to backup the whole database. If I need to set up the server from scratch I'm done in a few minutes, as long as I can use the backup- database (means no compatibility breaking changes in new version). If I can not use the stored DB, the server need some hours to import all media again (without me doing anything so it can be done over night or so) but I still have all watched flags as before...MP2-server crashes?