> ## 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.

# PlayFab Authentication API

The Authentication APIs provide a convenient way to convert classic authentication responses into entity authentication models. These APIs will provide you with the entity authentication token needed for subsequent Entity API calls. The game\_server API is designed to create uniquely identifiable game\_server entities. The game\_server Entity token can be used to call Matchmaking Lobby and Pubsub for server scenarios.

API version `260922`.

## Operation groups

* **Authentication** — Authentication APIs


## Related topics

- [Authentication](/services/playfab/identity/player-identity/authentication/index.md)
- [Microsoft Accounts Authentication for PlayFab](/services/playfab/identity/dev-identity/authentication/aad-authentication.md)
- [Microsoft Entra ID authentication for PlayFab APIs](/services/playfab/identity/dev-identity/authentication/entra-id-api-authentication.md)
- [Server Anonymous Login Authentication](/services/playfab/identity/player-identity/platform-specific-authentication/anonymous-login.md)
- [Setting up PlayFab authentication using Google and HTML5](/services/playfab/identity/player-identity/platform-specific-authentication/google-html5.md)