RailzwayDocs
Core concepts

Billing lifecycle

How usage becomes an immutable invoice and an explicit payment.

Railzway processes billing as a deterministic sequence:

  1. Accept append-only usage events.
  2. Aggregate events according to meter definitions.
  3. Resolve the effective rate and contract at event time.
  4. Produce rated charges and apply eligible credits.
  5. Preview, then finalize an immutable invoice.
  6. Start payment collection explicitly when required.

The engine knows what to bill. Payment integrations determine how to collect the finalized amount.

Core concepts

The resources that make up Railzway's billing model.

Base URLs

Address an organization through its default or custom API hostname.