there's AP and there's AP - it's a bit underspecified. Mastodon added a lot of stuff to make it much more usable as social media, and other implementations are

there's AP and there's AP - it's a bit underspecified. Mastodon added a lot of stuff to make it much more usable as social media, and other implementations are increasingly converging on the Mastodon API, which isn't super simple, but also lets you talk to the Mastodon API.