Note: Credits are only charged for nodes that actually execute during a flow run. If a flow stops or fails halfway through, you’ll only be charged for the nodes that ran before the stop point. Nodes that weren’t executed won’t consume any credits.
You can find the credit cost for each node on their tooltip.
There is a limit of double the amount of the plan you are on (eg. for regular starter plan this is 60,000), as a safeguard to ensure that users don’t accidentally blow through a bunch of credits.