Description of TCLink (Python) :
This is an LGPL?d thin client API that can be used to run credit card transactions over TCP/IP. / The main features of this link are as follows: / ? A simple, cross-platform protocol / ? Encryption via SSL and trusted server certificate authentication / ? Fast transactions times (average about 1.2 seconds end-to-end) / ? Fail-over to geographically distributed servers for extreme reliability / ? Available for numerous platforms and languages /