From live eBay feeds to an AI assistant, Rarities.app is built for serious collectors.
Save search queries and get a real-time discovery feed of matching eBay listings. Filter by price, category, and Buy It Now — never miss a deal.
Build and organize your personal collection. Track what you own, add items from eBay or by URL, and keep every detail in one place.
Bookmark individual eBay listings you're watching. Review them anytime without losing track across sessions.
Chat with an AI that knows your collection. Ask questions, get suggestions, and let it help you decide what to add next.
Share your collection with the world. Generate a public link to your showcase and let others browse what you've built.
Stay on top of pricing trends by monitoring eBay results over time. Know what things sell for before you buy or sell.
Sign up in seconds — no credit card required.
Enter keywords, set price filters, and let Rarities.app watch eBay for you.
Add items you own, track what you want, and share your showcase.
Save searches with category, price range, and Buy It Now filters. Rarities.app continuously surfaces fresh eBay listings that match exactly what you're looking for — so you can spend less time searching and more time collecting.
Proud of what you've built? Generate a public showcase page and share it with friends, communities, or anyone who wants to see your collection. No account needed to view.