The Threads team is exploring a content publishing API
I’ve replied to encourage them to consider adopting #micropub rather than defining their own unique API. They’ve committed to support ActivityPub so if they’re serious about the open web then Micropub should also be considered.
Micropublish now supports the proposed Micropub extension for Channels. If your server’s endpoint responds to ?q=channel, or your config has a channel property, you can use the new field.
While my current site doesn’t use channels, I’ve designed page management in my new, work-in-progress server to use the new proposal.
My 2017-01-01 IndieWeb commitment is to complete my rewrite of Micropublish to support Micropub updates, deletes and undeletes. My site’s Micropub endpoint supports these methods so I now need to bring my client up to date.