API

If you are a developer and want to use the API methods, you first must create a PerWorldInventoryAPI object. You can do that like this:

PerWorldInventory pwi = (PerWorldInventory) Bukkit.getServer().getPluginManager().getPlugin("PerWorldInventory");
PerWorldInventoryAPI api = pwi.getAPI();
From there, just call what method you want from the API, for example:
Code (Text):
boolean canShare = api.canWorldsShare("world", "anotherWorld");

You can view the full API class here.