> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Concepts

> Reference and concepts for identity and privileges in the XBOX Game Development Kit (XBOX Services). Includes concepts and API guidance.

Explore concepts topics for XBOX game development.

> [card] [XBOX services user privileges](https://docs.xbox.com/services/xbox-services/fundamentals/identity/privileges/concepts/live-privileges-concepts-nav.md)
>
> This section provides an overview of XBOX services user privileges that are handled by the client and server.

> [card] [Client-side use of XBOX services user](https://docs.xbox.com/services/xbox-services/fundamentals/identity/privileges/concepts/live-user-privileges-client.md)
>
> Use this topic to check and resolve user privileges that are available on XBOX services, and to determine the upsell system on an XBOX…

> [card] [Server-side handling of XBOX services](https://docs.xbox.com/services/xbox-services/fundamentals/identity/privileges/concepts/live-user-privileges-server.md)
>
> Use this topic to configure your single sign-on (SSO) services (also known as relying parties) to integrate with XBOX services privileges.

## See also

* [Config](https://docs.xbox.com/services/xbox-services/fundamentals/identity/privileges/config/index.md)


## Related topics

- [Concepts](https://docs.xbox.com/services/xbox-services/multiplayer/invites/concepts/index.md)