LIXA, LIbre XA, is a free and open source XA transaction manager
LIXA (LIbre XA) is an open source and free Transaction Manager implementing the distributed transaction processing "XA specification" and "TX (transaction demarcation) specification" according to the X/Open CAE Specification. LIXA implements even XTA: XA Transaction API, an innovative API that implements XA transactional context passing among different applications.
LIXA is a Transaction Manager but it's not a Transaction Monitor: this is the distinguishing feature of the project. ...
...FLoM supports different types of abstract resources: simple, numeric, set, hierarchical and transactional sequence.
libflom, the library shipped with FLoM, allows you to develop your own application using a simple C, C++, Java, Perl, PHP or Python client API.
SSL/TLS security for network communication, X.509 certificates for peer to peer mutual authentication.