Where can I find Web library to convert sign language from/to Text

I am working on a web-app. I want to convert sign language to text and text to sign language. I know that this is an area of hot active research. I don't want to re-invent the wheel, I wanna use this as feature in my app where users enter input-text or an audio (using the speech to text api) then translate the text into a sign language corresponding to the text entered.

I am looking for an API, framework, open source or research project to embedded it, or a database in a form that could be easily translated to animation in 3D (DB of word to sign language 3D animation ) to integrate it in my web application.

I found some frameworks using Kinect, and other extra devices. But in my case, all what I wanna use is web-came.

Can you please recommend any helpful tool/resource ?.