Trading is a feature in Monkey Quest.
You can trade items and bananas with other monkeys. You can trade up to nine different items and an unlimited amount of bananas.
You can only trade items that are marked as "Unbound", meaning that they are not bound to you and you can trade them away. Items are untradable if they are marked as "Bound", meaning that they are strictly bound to your character and you cannot give them away. Bananas are always unbound, meaning that you can always trade any amount of bananas with others.