Thanks to Frank Burian from urlcrypt.com we now can provide our DLCAPI in 2 different versions.
You can download and use the API for free, but your are not allowed to redistribute or sell this api in any kind. Wether standalone, nor bundled.
JP from http://kedakai.co.uk/ ported DLCAPI to ruby. The source, and a well done documentation is available on his homepage.
Download DLC API in Ruby