@rkaiser , I will preface this by saying there were occasional issues with some frames not being rendered.
There is not a direct way from Clara.io animation to video, however, we do allow you to render your animations frame by frame and then you are able to take those individual frames compile the image sequence into a video.
First, you will need to do is make sure that you have a renderer for your scene (red arrow). You can create one by going to Render > Render Presets > Full V-Ray Setup. You can click on the Renderer and make adjustment as needed on the Properties panel (blue arrow).
To render the animation frames, click on Render > Render Animation (Current Pass)
You will notice the blue loading bar on the bottom left of your screen. It should look something like this:
Once that is completed, you will have to compile the image sequence into one cohesive video.
Best of luck!