Just a quick note to say that I am running a script to periodically dump the data available from the Velib API (every 2 minutes).
Please host your own if you plan on making many queries against the previous URL.
Update: As of 27/08/2017, I updated the way Velib API data is stored and
available as a dump. All the available dumped data are available
here and you should refer to the
README.txt file for up to
date information on the available datasets.