SoldComps is an eBay sold-listings API for resellers, flippers, and developers who need real completed-sale data for pricing.
A single keyword search returns up to 240 sold listings straight from eBay's completed-sales results โ the sold price recorded on each listing, plus shipping, currency, condition, sale date, seller, and a clean item URL, all as structured JSON.
Highlights:
Built for price research, repricing tools, inventory sourcing, and market analytics. Try the live demo free.
A startup from Canada.
Sold comps per request
Up to 240 completed eBay sales per keyword search
Response data
Sold price, shipping, currency, condition, date, seller, item URL
eBay marketplaces
8 regions: US, UK, DE, FR, IT, ES, CA, AU
Output & authentication
Clean JSON from one API-key GET request โ no OAuth or XML
Data freshness
Fetched live per request โ no cached or stale prices
Max Mode (bulk)
Async auto-paginating sweeps for large pulls, with CSV output
Search filters
Category, price range, condition, and date window
SoldComps returns real eBay sold listings โ completed sales, not active listings or estimates โ from a single API call.
One keyword search returns up to 240 sold items, each as clean JSON with:
Most tools lock this data behind a dashboard or require an approved eBay developer account. SoldComps hands it back as a simple authenticated GET request you can integrate in minutes โ across 8 eBay marketplaces.
It's built API-first for people who want the data, not another dashboard to log into.
No eBay developer account, OAuth flow, or approval process โ just an API key and a GET request that returns clean JSON. What you get:
Pricing is per search, not per result โ a search that returns 10 items or 240 counts as one request โ and there's a free tier with no credit card to start.
SoldComps serves four main audiences:
SoldComps started from a simple, recurring frustration: eBay is the best source of real sold-price data, but actually getting that data is painful.
eBay's own API heavily restricts access to sold listings and gates it behind an approval process, and pulling comps by hand is slow and doesn't scale.
So SoldComps collapses all of that into one clean API call โ pass a keyword, get back up to 240 completed sales as structured JSON โ so resellers and developers get the pricing data they need without wrestling eBay's API or scraping it themselves.
SoldComps is built in TypeScript โ a Hono API backed by PostgreSQL, with a React web app. Billing runs on Stripe.
SoldComps is used across its core audiences rather than a few big-name accounts:
SoldComps appears to be a useful tool for buyers, sellers, and resellers seeking quick access to sold item comparables, primarily useful for pricing research on platforms like eBay, though users should verify data accuracy and coverage against official marketplace tools before relying on it for major decisions.
We have collected here some useful links to help you find out if SoldComps is good.
Check the traffic stats of SoldComps on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of SoldComps on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of SoldComps's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of SoldComps on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
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