You can see all the datapoints we provide by visiting our homepage https://ipdata.co or by making a call in your terminal via curl https://api.ipdata.co
If you are able to add detection for VPN then this is something my company would happily pay for.
Thank you for sharing your need for this. I'm going to make this a priority. If you'd send me an email jonathan at ipdata dot co, just a quick hello, I could keep you up to date on our progress as we develop this.