Put.io xbmc addon with api v2 xbmc.put.io-v2/ folder is the xbmc addon
Tried and works with xbmc v12 frodo.
Download the addon from here:
https://github.com/ybrs/putio-xbmc-v2/blob/master/xbmc.put.io-v2.zip?raw=true
Install it with xbmc addons menu. http://put.io/v2/oauth2/apptoken/26
Visit http://put.io/v2/oauth2/apptoken/26 and get your key.
Enter that key in addons settings.