Vexation.4609:

I’m not sure if I’m to place this here, but I’d love to get an official response from ArenaNet regarding the policy on this application:
GW2 Personal Assistant Overlay

There’s an old post on reddit from Chris Cleary saying that it’s allowed, but it’s 8 months old: screendump of the reddit post

It looks amazing, but I’m not willing to risk an account suspension for it

UnknownFreak.2805:

I quickly checked the source code, it seems to use GW2.NET c# wrapper, and some other for json and other stuffs.
also dev response on reddit:
http://www.reddit.com/r/Guildwars2/comments/2drawa/introducing_the_gw2_personal_assistant_overlay/cjshktp

so it seems to be fine to use.
you can read more in the FAQ section.

Aerodin.2795:

Hey there! Yes, Chris Cleary’s post is quite old and was for the original version of the application. Since that first release, I have never received any notices or reports of anyone ever being suspended for using my tool, so I’d say you can feel confident that it’s within the ToS for 3rd party applications.