Open Transactions
URL = https://github.com/FellowTraveler/Open-Transactions/wiki ; [1]
Description:
"It’s a solid, easy-to-use, FINANCIAL CRYPTO and DIGITAL CASH LIBRARY. Including an operational API, SERVER and CLIENT. Transaction processor featuring Untraceable Digital Cash, Anonymous Numbered Accounts, Triple-Signed Receipts, Basket Currencies, and Signed XML Contracts. Also supports cheques, invoices, payment plans, markets with trades, and other instruments... it's like PGP for Money.... Uses OpenSSL and Lucre blinded tokens. ---Mac OS X, Linux, FreeBSD, Android, Windows---Native APIs for Java, Ruby, Python, PHP, Perl, C, C++, Objective-C, C#, Tcl, and LISP"
license : GNU Affero General Public (open source) License