it supports all of those through http accepts header, http://hyperfiddle.net is configured for transit. but there is a bit more work to do here to make it nice and easy to use
you rock. there are few apis that actually supports accepts headers. incredible work there
haha thanks! one of our mentors is Mike Amundsen, the author of book: restful web apis. he wants hyperfiddle to comply to various API standards like JSON-LD and Hydra, which is something we can support since hyperfiddle is so abstract. I told him we will allow him to inject his own content types (which is really just another custom fiddle renderer if you think about it). devil is in the details of course, we will see
if we get funding we might integrate Mastodon, that would be wicked