Fiona Romeo‘s Medium post says it all:
We just flipped our own default and shared data for more than 125,000 works from MoMA’s collection on GitHub using Creative Commons Zero (CC0). This data release includes all of the works that have been both accessioned into MoMA’s collection and cataloged in our database. It includes basic data for each work, including title, artist, date made, medium, dimensions, and date acquired by the Museum. The data will be updated periodically with new acquisitions and research.