PlaceholderAPI

<crate> is the crate ID (file name) and <reward> is the reward ID (file name).

Placeholder	Description
%ecocrates_<crate>_keys%	The amount of virtual keys a player has for a given crate
%ecocrates_<crate>_opens%	The amount of times a player has opened a crate
%ecocrates_<reward>_wins%	The amount of times a player has won a given reward