The Qore json module allows Qore programs to parse and generate JSON strings and use JSON-RPC functionality. Note that this functionality was included in the main Qore library up until v0.8.1, at which time the functionality was separated into this module.
Module documentation: http://www.qore.org/manual/modules/json/current/json/html/index.html
The latest source code can be checked out from svn with the following command:
svn co svn://svn.code.sf.net/p/qore/code/module-json/trunk qore-module-json
Requires qore 0.8.1+ and openssl headers and libraries to build and run.
RPMs for Linux can be found at the opensuse build service here: http://download.opensuse.org/repositories/home:/davidnichols/
Mac OS/X users can install this module by using macports by issuing the following command
sudo port selfupdate
sudo port -vu install qore-json-module
The portfile can be found here: http://trac.macports.org/browser/trunk/dports/lang/qore-json-module/Portfile