Cost and billing
Metered billing
What is metered billing?
Metered billing charges for measured consumption rather than a fixed subscription. Each unit of usage is recorded as an event with a unique identifier, so replaying the same event cannot double-charge.
Idempotency is what makes it trustworthy. Usage events cross network boundaries and get retried; without a stable identifier per event, a retry becomes a second charge.
The gap between usage occurring and appearing on an invoice is real. Reporting pending events separately from settled ones is more honest than a single figure that pretends the lag does not exist.
Related terms
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