How pipedream credits work?

does each execution cost 1 credit ?

I don’t get, I had 19 executions all about between 3,000 ms and 3,999 ms but the system took me 15 credits, why ? shouldn’t it take 19 credits ?

in your docs you stated:
“Pipedream charges one credit per 30 seconds of compute time at 256 megabytes of memory (the default) per workflow execution.”
Most workflow executions use a single credit, regardless of the number of steps (unlike some other platforms, Pipedream does not charge for usage based on the number of steps).”