The JSDAI components JSDAI Core/Runtime, XIM Library and JSDAI Developer for Eclipse are available under the free open source license AGPL v3, the "GNU Affero General Public License".
The source code is available in the Download section.
Commercial licenses of JSDAI are also available for usage in commercial applications. The code is identical for both Open Source and commercial licenses.
Moreover, JSDAI Database is released under a commercial license.