> For the complete documentation index, see [llms.txt](https://docs.hiveauth.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hiveauth.com/developer-documentation/has-for-applications.md).

# HAS for Applications

This section describes the HAS protocol specification for communication between an Application (**APP**) and the Hive Authentication Services (**HAS)** infrastructure.