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# @voltro/plugin-billing

**Billing on the official Stripe SDK — subscriptions, plans, entitlements and usage metering. Proration, failed-payment retries, tax, promotion codes, trials and the checkout seat stepper are Stripe's own; the plugin adds the entitlement engine, the enforce interceptor, typed BillingError/EntitlementExceeded, the /billing/webhook mount with Stripe's signature verification, the BillingService Tag, requireEntitlement(), and a browser-safe useStartCheckout() hook. Money is integer minor units end-to-end.**

[📖 Documentation](https://docs.voltro.dev/docs/plugins/billing) · [voltro.dev](https://voltro.dev) · [Voltro Cloud](https://voltro.cloud)

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```sh
npm install @voltro/plugin-billing
```

> ### [→ Read the documentation for @voltro/plugin-billing](https://docs.voltro.dev/docs/plugins/billing)

Installation, guides, the full API reference, and examples all live in the
**[Voltro documentation](https://docs.voltro.dev/docs/intro/getting-started)** — the single source of truth. This README is
deliberately short so there is nothing here to drift out of date.

## License

Proprietary. © 2026 Voltro UG. Your use is governed by the
[Terms of Service](https://voltro.cloud/legal/terms). See the bundled `LICENSE`.