Automatic character control rig add on, created by tefano Corazza & Nazim Kareemi, 2008, owned by Adobe

Mixamo is a web-based service for 3D characters animation, which uses machine learning methods to automate the animation process. It simplifies the process by offering a library of motion-captured animation and a auto rigging tool.

Source: https://www.adobe.com/uk/products/substance3d/plugins/mixamo-in-blender.html