A new version of the HXL Proxy is available online for beta testing at
I hope to push this version to production in about a week, since it adds some important new functionality, including JSON input, flexible date formats, (optionally) skipping SSL certificate validation for sites using self-signed certs, and filling values down a column. If you use the HXL Proxy in your work, please check to make sure that none of your recipes breaks.
Cheers, David