With Jeeliz Face Filter API, you can build your own Facebook/Snapchat face filters using THREE.JS (or another WebGL 3D engine), and integrate it on website/mobile application.

The github with live demo links is here : https://github.com/jeeliz/jeelizFaceF...

it uses Jeeliz WebGL deep learning technology (more details on https://jeeliz.com).

We will add very soon the detection of the mouth opening.

It is under Apache2 licence, so you can use it even for commercial use.