The Houdini Engine can be accessed using plug-ins built using the Houdini Engine API. The plug-in works in a host application then uses the Engine to cook the results and make them available to the host application. You need to have Houdini software installed on your computer and a valid Houdini Core, Houdini FX or Houdini Engine license.

Artists can access the Houdini Engine using plug-ins for applications such as Autodesk Maya, Unity, Unreal and Cinema 4D. A 3DS Max plug-in is in development. Studios can also use the Houdini Engine API to create their own plug-ins for large scale pipeline integration. These custom plug-ins require a commercial Houdini Engine license. Houdini Engine Indie will work with the plug-ins listed here.