# Lockerverse SDK > Internal developer reference and live examples for the Lockerverse SDK. ## Docs - [Getting started](https://sdk.lockerverse.com/getting-started): Install the React package and connect a host site to a Lockerverse widget. - [React SDK playground](https://sdk.lockerverse.com/playground): Inspect the React SDK with live DEV widgets and Stripe test mode. ## Agent - [Lovable integration context](https://sdk.lockerverse.com/agent/lovable): Find version-matched Lockerverse integration instructions in the installed SDK. - [Installed SDK integration guides](https://sdk.lockerverse.com/agent/integration): Shared rules for integrating a saved Lockerverse resource into an existing website. - [Payment widget host integration](https://sdk.lockerverse.com/agent/payment-widgets): Preserve hosted checkout or native SDK payment mode in an existing website. ## Concepts - [Integration model](https://sdk.lockerverse.com/concepts/integration-model): The ownership boundary between a custom host site and Lockerverse commerce. ## React - [Catalog hook](https://sdk.lockerverse.com/react/catalog): Load complete Lockerverse widget data without loading Stripe or payment UI. - [Payment component](https://sdk.lockerverse.com/react/payment): Render native Lockerverse checkout for a catalog selection. - [Loading and preloading](https://sdk.lockerverse.com/react/loading): Keep catalog and payment interactions fast without losing package code splitting. - [Signup component](https://sdk.lockerverse.com/react/signup): Render a native signup form from a Lockerverse signup definition. - [Theming](https://sdk.lockerverse.com/react/theming): Style every Lockerverse React component with one token set. - [Auctions](https://sdk.lockerverse.com/react/auctions): Browse auction items, submit bids, and buy items with optional React components. - [Payment primitives](https://sdk.lockerverse.com/react/payment-primitives): Use shared checkout UI with your own Core SDK payment flow. - [Public event listings](https://sdk.lockerverse.com/react/events): Add saved public Events to an existing site with the Lockerverse SDK.