A: Hi Ned_the_Nomad, first of all, sorry for the late reply - I have dared to be offline for a workday :)) - Olympic games in Paris :)) Second: Thanks for your questions and interest.
Yes, Ägile Ässets publish directly to Instagram once you have set it up correctly—as reels, static posts, or stories.
Yes, it is integrated with X (though: honestly, as everyone, we're bit on the hook of random behaviour on their side). From all we know now, it looks stable.
Ref. API key - normally not, it would be good to know what you've got in mind for what you'd like to get done with. Maybe give me a bit more context here, I you'd like to do that one on one, feel free to email us to team@agile-assets.ai. (also because it would not be the first time that we integrate sth. rather quickly if it overall/for most users makes sense).

So I hope this helps for now - would be great to welcome you at Ägile Ässets - what we consider the home of Agile Content Marketing and Brand Building on Social Media....
See you there soon?

Sunny greets from Paris today
Kristin [Founder + Product Lead]