eBay Product Research and Analytics Tools

For most sellers the best free starting point is Terapeak Product Research in eBay Seller Hub. It shows sold prices, sell-through and listing data from eBay's own records. You can also search eBay for sold listings. Third-party tools such as ZIK Analytics and Algopix add features like competitor tracking and data from other marketplaces, usually on paid plans.

Terapeak Product Research is eBay's research tool inside Seller Hub. You open it from the Research tab. It uses eBay's own sales data to show sold prices, sell-through and listing details for items like yours. Use it to check demand before you buy stock and to set a fair price. It shows eBay data, so sellers who also want data from other marketplaces often add a third-party tool.

Tools that use eBay's own data, like Terapeak in Seller Hub, show actual sold listings. Third-party tools may use eBay APIs, their own data collection or estimates, so results can differ. The sold price may not reflect an accepted Best Offer, and shipping costs vary. Use research tools to spot trends and price ranges, not exact numbers.

Tools that use eBay's official APIs, or that show data on pages you are already viewing, are widely used. eBay's User Agreement does restrict scraping and automated access to its site without permission. Before you connect a tool to your account, check how it gets its data and what access it asks for. You can remove any app's access in your eBay account settings.

Start with the job you need done. For pricing single items, Terapeak in Seller Hub may be enough. For finding new products or tracking competitors, compare third-party tools. Check where each tool gets its data, how far back sales history goes and which eBay sites it covers. Use a free trial to research a few items you already know well, and compare the results with your own sales.