|  | | This is an LGPL’d thin client API that can be used to run credit card transactions over TCP/IP. | | TCLink is an LGPL'd thin client API which can run credit card transactions over TCP/IP. It is a simple, cross-platform protocol The main features it includes are: An easy-to-use interface; Encryption using SSL and trusted certificates; Fast transactions times (average about 1.2 seconds end-to-end). Full source code is included. It also offers a developer documentation and an example Python script | | The performance of a stock portfolio that is established in a data file can be achieved by this portfolio tool. | | |  |
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