> ## 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.

# PlayFab Services C API reference

> Reference documentation for the PlayFab Services C API, organized by API group, with links to installation and SDK programming guidance for the GDK.

Reference documentation for the PlayFab Services C API.

Use the navigation to browse the available API groups.

For installation, supported platforms, and programming guidance, see the [PlayFab Services SDK documentation](https://docs.xbox.com/services/playfab/sdks/c/index.md).


## Related topics

- [PlayFab Services SDK](https://docs.xbox.com/services/playfab/sdks/c/index.md)
- [Quickstart (Windows) - Calling PlayFab Services](https://docs.xbox.com/services/playfab/sdks/unified-sdk/quickstart-services.md)
- [PlayFab Multiplayer API](https://docs.xbox.com/services/playfab/api-references/rest/multiplayer/overview.md)
- [PlayFab fundamentals](https://docs.xbox.com/services/playfab/get-started/index.md)
- [Handling PlayFab Errors](https://docs.xbox.com/services/playfab/sdks/c/errors.md)