After Effects will get driven keys in the next release of DUIK, but you can try the DUIK Connector tool now.
drive any animation with any value in After Effects with Duik Connector
DUIK Connector will let you easily drive any animation with any attribute value in After Effects. This can be used for all types of things in After Effects.
Think of the animation rigging possibilities to be had by introducing driven animation.
I have sung the praises of Nicolas Dufresne and his DUIK animation tools for After Effects, many times.
— Duduf (@NicoDuduf) March 6, 2016
While more and more developers are trying filling in much needed gaps in After Effects to make quick cash, DUIK remains free and open for all. It is quite remarkable.