Now with permission/knowledge to use both, I decided to write a python application that pulls Trade Post data (gw2spidy) and item/recipe date (gw2guru). With this data, I can now put in a simple request to my application, such as asking for a specific recipe, and within a few seconds it will pull all the items required to make that recipe and their current cost on the trading post. It will also show me how much the end product is selling for. This allows me to see if I spent in game money to immediately buy all the components of a recipes and build it, would I be able to sell it on the trading post at a profit or loss after posting fees.
Anyway, in the end I think it’s cool, even though at its current stage it’s only usable by me. Maybe in the future I’ll make it web-based for all my friends to use.