We build open-source billing infrastructure for teams that want full control over how they charge their users.
- railzway — Self-hosted billing engine for usage-based SaaS. Handles subscriptions, metering, proration, and invoicing.
- railzway-auth — Authentication service for Railzway.
- railzway-landing — Landing page and marketing site.
Billing should be deterministic, auditable, and owned by you — not locked inside a third-party platform.
- Website: railzway.com
- Main repo: railzwaylabs/railzway