Q:
Can I view the Trading Post in a web browser?
Well, technically you ARE seeing the TP in a web browser. I don’t believe you can search, buy, or sell outside of the game, however. There are some sites that you can see trends based on 15m sampling.
Ya, those sites like GW2spidy are pulling the data from the website. I just want to know if I can browse it as well
Here is some info from their faq
“ArenaNet has build the Trade Market so that it’s loaded into the game from a website.
You can also access this website with a browser and use your game account to login and view all the items and listings. "