Poe-Trademacro Is it allowed?

Not sure if that's the right thread area, but i'd like to know if such things as trade info macro is allowed or not

This one specifically:
https://poe-trademacro.github.io/

GGG will not give you a definitive answer here, it will always be a case of don't use it or you could get banned.

This is because that while some may fall under their guidelines on what they feel is allowed (though i stress, this was mentioned YEARS ago) and be ok, said add-ons may not always be good to use.
These add-ons can add functionality in future updates that mean it could get you banned, someone could be using it maliciously which can not just get you banned but hacked (some people are not careful on where they get the add-ons or are too trusting)

That trading tool is outdated. Don't use it, regardless of whatever answer GGG gives you.