> ## 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.

# Data Type Overview

> Data Type Overview

XBOX Live Services uses a variety of data types related to identity and authentication.
These articles provide an overview of those types.

| Type | Description |
| - | - |
| gamertag | A unique, human-readable screen name for the user. |
| Player | A JSON object containing the user's XUID and gamertag, as well the player's index in the session (or "seat"), whether the player is still participating in the session, and a small blob of custom data. |
| profile | Information about the user accessed through profile URI addresses and HTTP methods, usually the user's UserSettings, but also possibly including gamercard, gamertag, XUID, and so on. |
| setting | One of the title-specific settings in a UserSettings object. |
| UserClaims | A simple JSON object containing the user's XUID and gamertag. |
| UserSettings | A JSON object containing a collection of title-specific settings or preferences for the current authenticated user. UserSettings can contain arbitrary data, possibly related to in-game activity. |
| XUID | The user's XBOX User ID, a unique unsigned long long integer. Not meant to be human-readable. |

## See also

##### Parent

[Additional Reference](https://docs.xbox.com/reference/live/rest/additional/atoc-xboxlivews-reference-additional.md)

##### Reference

[Player (JSON)](https://docs.xbox.com/reference/live/rest/json/json-player.md)

[UserClaims (JSON)](https://docs.xbox.com/reference/live/rest/json/json-userclaims.md)

[UserSettings (JSON)](https://docs.xbox.com/reference/live/rest/json/json-usersettings.md)


## Related topics

- [Services C API overview - PFDataTypes.h](https://docs.xbox.com/services/playfab/api-references/c/pfdatatypes/pfdatatypes_members.md)
- [Services C API overview - PFPlayerDataManagementTypes.h](https://docs.xbox.com/services/playfab/api-references/c/pfplayerdatamanagementtypes/pfplayerdatamanagementtypes_members.md)
- [Services C API overview - PFTitleDataManagementTypes.h](https://docs.xbox.com/services/playfab/api-references/c/pftitledatamanagementtypes/pftitledatamanagementtypes_members.md)
- [Services C API overview - PFTypes.h](https://docs.xbox.com/services/playfab/api-references/c/pftypes/pftypes_members.md)
- [Title Storage overview](https://docs.xbox.com/services/xbox-services/storage/title-storage/live-title-storage-overview.md)