# RevenueCat Documentation — Projects & Security

> Project settings, store connections, authentication, OAuth, SSO, and collaborators. Part of the RevenueCat documentation for building in-app purchases and subscriptions.

Each link below points to the Markdown version of a page in this section. For every other section, see the root index at [llms.txt](https://www.revenuecat.com/docs/llms.txt). For the complete documentation as a single Markdown file, see [llms-full.txt](https://www.revenuecat.com/docs/llms-full.txt).

## Projects & Security

- [API Keys](https://www.revenuecat.com/docs/projects/authentication.md): Manage your API keys to authenticate with RevenueCat
- [Collaboration](https://www.revenuecat.com/docs/projects/collaborators.md): Invite others to collaborate on your project
- [Configuring Products](https://www.revenuecat.com/docs/projects/configuring-products.md): Set up products, entitlements, and offerings to start testing purchases
- [Connect Apps & Web Providers](https://www.revenuecat.com/docs/projects/connect-a-store.md): Connect supported apps and web providers to your project
- [OAuth](https://www.revenuecat.com/docs/projects/oauth-overview.md): Connect a third-party client to your RevenueCat account, and revoke that access when you no longer need it.
- [Create an OAuth client](https://www.revenuecat.com/docs/projects/oauth-setup.md): Register an OAuth client and implement RevenueCat's authorization flow
- [Projects](https://www.revenuecat.com/docs/projects/overview.md): The top-level entity for RevenueCat
- [Restore Behavior](https://www.revenuecat.com/docs/projects/restore-behavior.md)
- [Sandbox Testing Access](https://www.revenuecat.com/docs/projects/sandbox-access.md)
- [Single Sign-On (SSO)](https://www.revenuecat.com/docs/projects/sso.md): Log into RevenueCat using Single Sign-On (SSO)