MHDB was created by Arno Klein and has now evolved into a central resource called Mosaic that supports other mental health tools.
The Mental Health Database (mhdb) is a linked open data (rdf) graph database available through the MHDB github repository, and includes information about:
The database is licensed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0 license). Information about its content, contributors, and changes can be found on the website https://github.com/ChildMindInstitute/mhdb.