You do not need an account to access any of the public documentation. If you are asked to log in, you have gone too far.
HS4 documentation. Includes Getting Started, HS4 Core, Scripting, FAQ, and Help.
HomeSeer Products Knowledge
Documentation on HomeSeer hardware products and other software products.
HomeSeer Plugin documentation.
HomeSeer Legacy Knowledge Base
Documentation on legacy or discontinued products.
HS4 plugin development SDK documentation.