Concepts

These pages explain how Driptab models billing. Read them before writing integration code — the mental model here drives every API decision.

Billing model	Plans, charges, metrics, catalog, add-ons — the vocabulary of Driptab billing
Subscriptions	How a customer is placed on a plan, period management, status transitions
Invoices	How invoices are generated, what determines their timing, how payment flows
Events and metering	What happens when you POST an event; how usage is counted and closed
Audit trail	Every write is recorded; how to query what changed and who did it
Webhooks	How Driptab notifies your system; HMAC signing; the dunning pattern
driptab.yaml	How to define your billing configuration as code and apply it with dtab sync