Open Transactions is a solid, easy-to-use, financial crypto and digital cash library, including an API, server, and test client. It features anonymous numbered accounts, untraceable digital cash, triple-signed receipts, basket currencies, and signed XML contracts. It also supports cheques, invoices, payment plans, markets with trades, and other instruments. It uses OpenSSL and Lucre blinded tokens.
The FIX message viewer is a set of Ruby scripts that parse FIX (Financial Information eXchange protocol) messages to display them in a more human-readable format. The viewer can only parse FIX messages in a file or from STDIN. It also expects a full FIX message on each line. The FIX message can be prepended with a timestamp, but this will be ignored. The output is colored to make it easier to read, and the MsgType field is highlighted. The log viewer works on the command line only, and requires that Ruby is installed.