> For the complete documentation index, see [llms.txt](https://navixy.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://navixy.com/docs/navixy-api/user-api/backend-api/resources/billing.md).

# Billing

- [Bill](https://navixy.com/docs/navixy-api/user-api/backend-api/resources/billing/bill.md): Bill object description and API calls for work with user's bills.
- [Payment system](https://navixy.com/docs/navixy-api/user-api/backend-api/resources/billing/payment_system.md): Payment system settings object and API calls for working with payment systems and make payments.
- [Subscription](https://navixy.com/docs/navixy-api/user-api/backend-api/resources/billing/subscription.md): API calls to interact with payment subscriptions
- [Transaction](https://navixy.com/docs/navixy-api/user-api/backend-api/resources/billing/transaction.md): Transaction object description and API call to get list of user's billing transactions for the specified period.
- [Tariff](https://navixy.com/docs/navixy-api/user-api/backend-api/resources/billing/tariff.md)
- [Plan](https://navixy.com/docs/navixy-api/user-api/backend-api/resources/billing/tariff/index.md): Tariff object description and API call to get the list of device's tariffs available to user.
- [Tracker plans](https://navixy.com/docs/navixy-api/user-api/backend-api/resources/billing/tariff/tariff_tracker.md): API calls on user's actions with tracker tariffs


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