MORX v2 presents 3,115,575 optical objects which are calculated as being 40%-100% likely to be associated to radio or X-ray sources, as at 30 June 2023.  Astrometry, photometry, classifications, and radio/X-ray identifications are included, full details are in the ReadMe.  Includes >500K high-probability QSO candidates among the unclassified opticals.  This is the final edition of MORX -- published by the Open Journal of Astrophysics -- 2024,OJAp,7,6 --  https://doi.org/10.21105/astro.2308.01507.        

Here is the ReadMe, and a quick browse of sample data (in flat text form) is here.  

GET MORX v2  HERE  (143 MB zipped).  Also available in FITS (168 MB zipped).  Or get them from CDS here  (select FTP tab).

Citations in MORX are indexed in the file "MORX-references.txt" here .