Cayley – An open-source graph database
Maintainer here, good to see Cayley on HN again :)<p>We've got a lot of new features on master, (GraphQL support, Gephi interfaces, Recursive iterators, etc) and are cutting a release next week.<p>Active work in the coming releases on tightening down the indexing and really bringing it into prod.<p>EDIT: Feel free to join the new Slack or the Discourse mailing list/discussion board!