BattlePlace.io is in a very early stage. There's no stable API versions yet. Data (i.e. project settings, statistics, user ratings) may be wiped out at any moment. Don't use it in serious projects yet!
BattlePlace is a flexible managed backend service for developing session-based multiplayer games, aimed at indie developers. For indie demands it's free to use indefinitely. Depending on your use case, when fully using our service you may not need to manage any server infrastructure at all.