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TCLink is an LGPL'd thin client API which can run credit card transactions over TCP/IP. A similar package is Red Hat's ccvs, however, it requires that you use a modem or leased line. With TCLink you can run credit card transactions directly over the Internet.
Features
* 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 |