SoldComps
Underpriced.App
Google Lens
Terapeak
Flipshope
ZIK Analytics
ScoutFlip
PriceHunt
React Engine
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.
SoldComps React EngineSoldComps's answer
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.
SoldComps's answer
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's answer
SoldComps serves four main audiences:
SoldComps's answer
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's answer
SoldComps is built in TypeScript โ a Hono API backed by PostgreSQL, with a React web app. Billing runs on Stripe.
SoldComps's answer
SoldComps is used across its core audiences rather than a few big-name accounts:
Based on our record, React Engine seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I was wondering to use paypal's React Engine (https://github.com/paypal/react-engine), but I have some doubts:. Source: over 4 years ago
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