Projects / Moneychanger


Moneychanger is a GUI built on top of Open Transactions, a financial crypto library. Moneychanger can be used to create pseudonyms, issue currencies, open accounts, withdraw and deposit cash (untraceable digital cash), write and deposit cheques, trade on markets, and much, much more.

Operating Systems

Recent releases

  •  02 Jan 2014 07:44

    Release Notes: The program was re-written in Qt/C++ and now builds on Windows, Mac, and Linux. It includes basic functionality: transaction history, send/request funds, untraceable cash, invoices, pseudonyms, Ricardian contracts, and end-to-end encrypted messaging.

    •  07 Mar 2013 20:52

      Release Notes: This version of Moneychanger goes with Open-Transactions v0.88.j. (There was a small API change for 'opentxs sendcash').

      •  05 Dec 2012 06:23

        Release Notes: Moneychanger was updated to match recent updates to Open-Transactions. Make sure you have OT version 0.87.e (at least) in order to use this version of Moneychanger.

        •  02 Jul 2012 11:04

          Release Notes: This release works with the newest version of Open Transactions. It benefits from various recent optimizations to the app messaging protocol. (The SWIG/API wrappers have been regenerated.)

          •  23 Apr 2012 09:53

            Release Notes: The high-level Java API (which wraps the lower-level C++ API) was rewritten to go along with big updates to the application protocol for OT version 0.80c.


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