The original eBay lookup worked, but it had plenty of room to get smarter. I spent some time improving the search flow so it does not just rely on text matches, because pin titles on eBay can be messy, incomplete, or flat-out wrong. Bringing image-based search into the mix made the results feel a lot less random.
I also added visual ranking for listings, which helps sort the useful matches above the junk. On top of that, every pin page now has a Find on eBay affiliate link, which felt like an easy quality-of-life improvement for anyone who wants to track down a listing manually. Under the hood there is also more caching and rate limiting protection, so repeated lookups stay fast and the app does not hammer the API.
The main goal here was better price accuracy. By scoring and filtering results more carefully, the sold comps we keep are much closer to the actual pin instead of just vaguely similar listings. It is still not perfect, but it is a lot more trustworthy than the first version.