The Administrator Reference Manual (ARM) for Kea is the authoritative reference for Kea commands and usage. It is published in both .html and .pdf formats.
The Kea Messages Guide
Kea Developer Guide
The Kea Developer Guide is addressed at either existing or prospective Kea developers and contributors, and provides information needed to extend and maintain Kea source code.
If you wish to write hook code - the code that is loaded by Kea at run-time and modifies its behavior, you should read the Hooks Developer's Guide section.
This guide is available only as a living document for the current development version.