Is there a forge event for successful trading with a villager?

I searched but did not find anything similar

no, what do you try to achieve?

@Luis_ST I want that when a player buys my item from a merchant, the villager is destroyed

 a idea not sure if it's work but you can register an AdvancementListerner to the Player in PlayerLoggedInEvent to the villager_trade AdvancementTrigger, then you need a bit logic inside the Listener to get the Villager with which the player trades (you can get from the World all Villager in a area then check if the trading player which is store in the Villager is the same player) and a you need to check if the player was trading with your trade after a successful tests you can remove the Villager 

Hmm, ok,

thanks!