> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.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.

<CardGroup cols={2}>
  <Card title="XBOX services user privileges" icon="right-to-bracket" href="/services/xbox-services/fundamentals/identity/privileges/concepts/live-privileges-concepts-nav">
    This section provides an overview of XBOX services user privileges that are handled by the client and server.
  </Card>

  <Card title="Client-side use of XBOX services user" icon="user" href="/services/xbox-services/fundamentals/identity/privileges/concepts/live-user-privileges-client">
    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>

  <Card title="Server-side handling of XBOX services" icon="database" href="/services/xbox-services/fundamentals/identity/privileges/concepts/live-user-privileges-server">
    Use this topic to configure your single sign-on (SSO) services (also known as relying parties) to integrate with XBOX services privileges.
  </Card>
</CardGroup>

## See also

* [Config](/services/xbox-services/fundamentals/identity/privileges/config/index)


## Related topics

- [Concepts](/services/xbox-services/multiplayer/invites/concepts/index.md)
- [Matchmaking concepts](/services/xbox-services/multiplayer/matchmaking/concepts/live-matchmaking-concepts-nav.md)
- [Multiplayer concepts](/services/xbox-services/multiplayer/concepts/live-multiplayer-concepts-nav.md)
- [Reputation concepts](/services/xbox-services/community/reputation/concepts/live-reputation-concepts-nav.md)
- [Invites concepts](/services/xbox-services/multiplayer/invites/concepts/live-invites-concepts-nav.md)