# Ledger

> Credit billing and usage enforcement for your application

- [Ledger documentation](https://docs.integrateledger.com/index.md): Build a sandbox credit billing flow with Ledger and Stripe.
- [Integrate Ledger](https://docs.integrateledger.com/quickstart.md): Publish a sandbox catalog, start Checkout, and enforce credit limits.
- [Authentication](https://docs.integrateledger.com/authentication.md): Use your organization-scoped Ledger key from a trusted backend.
- [Credits and usage](https://docs.integrateledger.com/credits.md): Check availability and record each successful feature use.
- [Sandbox billing](https://docs.integrateledger.com/billing.md): Connect Stripe test mode and start plan or credit-pack Checkout.
- [Privacy policy](https://docs.integrateledger.com/privacy.md): How Ledger handles account, workspace, and sandbox billing information.
- [Publish an organization's catalog](https://docs.integrateledger.com/api-reference/publish-an-organizations-catalog.md)
- [Check a customer's available credits](https://docs.integrateledger.com/api-reference/check-a-customers-available-credits.md)
- [Create or get a customer](https://docs.integrateledger.com/api-reference/create-or-get-a-customer.md)
- [Record feature usage](https://docs.integrateledger.com/api-reference/record-feature-usage.md)
- [Attach a plan or add-on to a customer](https://docs.integrateledger.com/api-reference/attach-a-plan-or-add-on-to-a-customer.md)
- [Upgrade a paid plan](https://docs.integrateledger.com/api-reference/upgrade-a-paid-plan.md)

## OpenAPI Specs

- [openapi](/openapi.json)


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