djmount is a UPnP AV client. It mounts as a Linux filesystem (using FUSE) the media content of compatible UPnP AV devices : the Audio and Video content on the network is automatically discovered, and can be browsed as a standard directory tree.
Exactly what I was looking for. Easy to use interactively, well suited for automation and scripting. Thx! Unfortunately not actively developed, but some forks are available on github.com.
works fine with mediatomb