Actually not the AI version, but plain old Httpie. I used it to make calls to Decoy to test it out and also use it almost every day in building my other projects to test incoming API calls, etc
I use iA Writer to keep track of my todos and ideas that I get while working on most of my projects. I also use Bear a lot and might even consider switching back. I wish Apple notes had better markdown support.
The reason I went with iA Writer in the end is that it stores files as simple markdown files on disk and that portability feels less of a lock-in than the others.
Bunny made it super easy to host a static website. I built a Ruby website generator that uses erb templates to generate HTML. I added Tailwind and then a script that uploads to bunny over FTP.
Decoy
Bear
Apple Notes