> ## 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.

# XBOX services authentication (contents)

> Contents index for XBOX Live authentication topics: XSTS security tokens, title service auth, website sign-in, and background on token flows.

This section provides information about XBOX services authentication and tokens.

## In this section

[XBOX services authentication](/services/xbox-services/fundamentals/s2s-auth-calls/service-authentication/live-xbox-live-authentication)
Provides background information about XBOX services call authentication.

[XBOX services authentication for title services](/services/xbox-services/fundamentals/s2s-auth-calls/service-authentication/live-title-service-authentication)
Describes how to use XBOX services authentication with a custom title service.

[XBOX services security tokens](/services/xbox-services/fundamentals/s2s-auth-calls/service-authentication/security-tokens/live-security-token-nav)
Provides information about XBOX Live security tokens.

[XBOX services sign-in for title websites](/services/xbox-services/fundamentals/s2s-auth-calls/service-authentication/live-website-authentication)
Supporting XBOX services sign-in on custom title websites.


## Related topics

- [Service authentication](/services/xbox-services/fundamentals/s2s-auth-calls/service-authentication/index.md)
- [XBOX services authentication](/services/xbox-services/fundamentals/s2s-auth-calls/service-authentication/live-xbox-live-authentication.md)
- [XBOX services authentication for title services](/services/xbox-services/fundamentals/s2s-auth-calls/service-authentication/live-title-service-authentication.md)
- [Account authentication and access overview](/services/xbox-services/fundamentals/identity/auth/live-authentication-overview.md)
- [Example XSTS Token, decryption, and validation](/services/xbox-services/fundamentals/s2s-auth-calls/service-authentication/security-tokens/live-sample-xsts-token.md)