The trading shim is a command line interpreter with a DBMS backend to the socket-based 'binary format' API of the Interactive Brokers' Trader Workstation. It uses mnemonic ASCII text commands to permit downstream clients to easily access several worldwide securities markets and exchanges (stocks, options, futures, bonds, and Forex) for "tick" data and history (intraday and EoD). It also allows clients to initiate and supervise trades of securities, manage accounts, and more.
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.