Listening for an event shouldn't cost money. Yet most platforms bill you the moment a webhook fires, whether or not anything useful happens.
Pay for work, not for waiting
In NodeGraph, trigger nodes are always free. You only spend credits when the flow does real work — an AI call, an email send, an API write.
Predictable bills
This makes your automation spend track actual value delivered, not background noise. No surprise invoices because a webhook got chatty.