Terapeak

Terapeak is a market research tool that uses supply, demand and pricing data to help sellers decide what to sell and at what price. It started as a Toronto-based company, and eBay signed an agreement to acquire it in December 2017. eBay added Terapeak features such as sales history and price guidance to Seller Hub, where they appear as Product Research and Sourcing Insights.

Yes, the main tool is. From April 2021 eBay made Terapeak Product Research free for all Seller Hub sellers, so you do not need a Store subscription to use it. Terapeak Sourcing Insights is different: it requires a qualifying eBay Store subscription, which eBay's help page says is a Basic Store or higher. Normal eBay selling fees still apply to your listings.

Open eBay Seller Hub and go to the Research tab, where Terapeak appears as Product Research. You can also go directly to ebay.com/sh/research. Sourcing Insights is in the same research area for sellers with a Basic Store or higher. eBay's help page says the research tools are also available in its mobile apps, so you can check prices on the go.

Sourcing Insights helps sellers plan what to stock by showing real sales data for whole categories and pointing out areas of opportunity. eBay makes it available to business sellers with a Basic Store subscription or above, at no extra charge beyond the Store fee. Sellers without a qualifying Store can still use Product Research for individual items.

eBay's help page says Product Research and Sourcing Insights both give access to the last three years of eBay sales data for millions of items. This is longer than the sold listings filter in regular eBay search, which shows recent sales only. Results show actual sold prices rather than asking prices, which helps when setting a price.