> ## 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.

# Service-to-service calling patterns

> XBOX Live service-to-service calling patterns for MPSD multiplayer session management and GDPR deleted account retrieval from your title service.

This section provides details on XBOX Live service-to-service calling patterns.

## In this section

[Service-to-service multiplayer session management](/services/xbox-services/fundamentals/s2s-auth-calls/s2s-calls/s2s-call-patterns/live-mpsd-service-to-service)
Describes how to use service-to-service (S2S) calling patterns with Multiplayer Session Directory (MPSD).

[Getting the deleted accounts list](/services/xbox-services/fundamentals/s2s-auth-calls/s2s-calls/s2s-call-patterns/live-get-deleted-accounts-list)
Describes how to dynamically retrieve the deleted account list for GDPR compliance from your service.


## Related topics

- [S2s call patterns](/services/xbox-services/fundamentals/s2s-auth-calls/s2s-calls/s2s-call-patterns/index.md)
- [Service calls to XBOX services](/services/xbox-services/fundamentals/s2s-auth-calls/s2s-calls/live-s2s-calls-nav.md)
- [Service-to-service multiplayer session management](/services/xbox-services/fundamentals/s2s-auth-calls/s2s-calls/s2s-call-patterns/live-mpsd-service-to-service.md)
- [Request a User Store ID for service-to-service auth](/publishing/xstore-commerce/xstore-requesting-userstoreid.md)
- [Quickstart (Windows) - Calling PlayFab Services](/services/playfab/sdks/unified-sdk/quickstart-services.md)