Data & compliance
colcur is a search engine over certified-coin listings on eBay USA. It holds no coins, sets no prices, and grades nothing. This page states exactly where our data comes from and how long we keep it — both because a careful collector deserves to know, and because we hold ourselves to eBay’s developer terms to the letter.
Official eBay API only — never scraping
Every listing comes through eBay’s official Browse API, under eBay’s developer terms. We do not scrape eBay’s web pages, work around its robots rules, or use any unofficial source. If a detail isn’t available through the API, we don’t show it.
Prices are refreshed, never stale
We re-check each listing against eBay every few hours and show eBay’s current asking price (or current bid, for auctions). A price we can’t currently confirm is not shown as a price. We don’t claim real-time prices — we claim refreshed ones, and we’d rather drop a number than show a stale one.
We keep recently-ended listings for 30 days — then delete them
When a listing ends, we keep its details for at most 30 days so you can see what a coin recently listed for, and then we delete that data permanently. Thirty days is the longest eBay’s terms allow us to retain it, and we hold nothing past that window. What we show as “recent market” is the last asking price before a listing closed — not a confirmed sale.
No listing photos — we send you to eBay to see the coin
We download a seller’s photo for one mechanical purpose: to read the grading service’s certification barcode off the slab. We never display or republish those photos, and we never use them to train models. To actually look at a coin, we link you to the seller’s own eBay listing, where the image is current.
The identity is the grader's, and it's verifiable
The grader, certificate number, and grade you see are decoded from the grading service’s own barcode — the same certificate number you can check on PCGS’s, NGC’s, ANACS’s, or ICG’s site. That decoded number is a public fact, not eBay’s data, and you can confirm it independently. We don’t look at the coin and guess.
We hold no buyer information
colcur has no accounts and collects no buyer personal data. We store a listing’s public seller handle, and we honour eBay’s account-deletion notifications: if an eBay user closes their account, we remove the matching data.
Affiliate-funded — your price never changes
colcur is free. When you click through to eBay and buy, eBay pays us a small commission through the eBay Partner Network. It never changes the price you pay, and it never changes which listings we show you.
eBay USA only, for now
Today’s index covers eBay USA. Listings from other eBay marketplaces aren’t included yet, even when the same coin is available internationally.
colcur earns a commission when you buy on eBay through our links — it never changes your price. Every listing opens on eBay USA; other marketplaces are not indexed yet.