The BuildCraft official server is accessible from:

s394594430.onlinehome.fr
s15972928.onlinehome-server.info
spacetoad.mossycobble.com

It’s currently a 60-slots server, 24/7, monsters activated. Specification and offline discussions are open on http://www.mod-buildcraft.com/forums/forum/servers/official-buildcraft-server/.

Note that following major griefing problems, the server is not whitelisted. Please apply on http://www.mod-buildcraft.com/forums/forum/servers/official-buildcraft-server/.

It is currently free. I’m trying to keep it that way, financing it on BuildCraft donations only.