# Inventor The automatic variable $Inventor is of type _[Application Object](https://help.autodesk.com/view/INVNTOR/2023/ENU/?guid=GUID-AA811AF0-2494-4574-8C43-4C22E608252F)_ and gives direct access to the **Inventor's API**. It is the topmost object in the API hierarchy and supports methods and properties that let you control the Inventor Application.
Most importantly, it provides access to the properties and information of the active document. ## Syntax ```powershell $Inventor.ActiveDocument ``` :::{seealso} For the complete list of properties and methods and for more information see: [Inventor API Reference Manual](https://help.autodesk.com/view/INVNTOR/2023/ENU/?guid=GUID-AA811AF0-2494-4574-8C43-4C22E608252F). :::