# Documentation

- [API Reference](/docs/api-reference): Server-side API methods
- [Basic Usage](/docs/basic-usage): Getting started with BillSDK
- [Configuration](/docs/configuration): All configuration options for BillSDK
- [Introduction](/docs): Introduction to BillSDK
- [Installation](/docs/installation): Learn how to configure BillSDK in your project.
- [Drizzle](/docs/adapters/drizzle): Database adapter for Drizzle ORM
- [Memory](/docs/adapters/memory): In-memory adapter for testing
- [Stripe](/docs/adapters/stripe): Payment processing with Stripe
- [Behaviors](/docs/concepts/behaviors): Override default billing logic
- [CLI](/docs/concepts/cli): Generate schemas and manage your billing configuration
- [Subscription Lifecycle](/docs/concepts/subscription-lifecycle): States and transitions
- [Next.js](/docs/integrations/nextjs): Next.js App Router integration
- [React](/docs/integrations/react): React hooks for billing UI
- [Time Travel](/docs/plugins/time-travel): Test subscription cycles in development