sports card lot scanner
BulkSonar scans every bulk lot across eBay, ShopGoodwill, and AuctionNinja — titles, descriptions, and every photo — and flags the exact lot when the player or set you collect is buried inside, or when it estimates real value sitting in an underpriced pile, even if the seller never mentioned it. More marketplaces are already on the way.
real scan output
$20.00 ask
Full curated 2025 rookie run, not a sample lot — at $20 ask, a clear buy.
Card era mix
Spotted in the photos
real scans, not mockups
real scan output
$75.00 ask
The bulk of this lot is dealer-stock 1987–93 base — but the scanner still pulled five real vintage HOF rookies out of it, Ripken and Ozzie Smith included.
Card era mix
Spotted in the photos
real scan output · listing check
$55.00 ask
Shedeur Sanders and Cam Ward 2025 rookies, plus a numbered Kittle parallel. The listing says “autos” — BulkSonar flagged that none were actually visible.
Card era mix
Spotted in the photos
real scan output
$120.00 ask
A Christian McCaffrey serial-numbered relic anchors the lot, with an Austin Ekeler patch relic and an on-card rookie auto adding depth.
Card era mix
Spotted in the photos
the pipeline
The same signal language runs through the whole app — this is what SKIP, WATCH, LOOK, and ALERT actually mean.
Title, description, and every photo in the listing get read — including the loose, unsorted, "as-is" lots most tools skip.
Players, sets, brands, and years get identified per-lot, whether or not the seller listed them.
A value band and a verdict — SKIP through ALERT — get attached, so you know what's worth a second look at a glance.
If it matches something on your want-list, you hear about it — before the auction ends, not after.
personalized alerts
Most tools scan for anything underpriced. BulkSonar scans for your collection — a player, a set, a rookie class — and tells you the moment one shows up, wherever it's hiding.
plans
get started
Pick a plan, set your want-list, and BulkSonar starts watching every new lot the moment it's listed.
Choose a plan & sign up →Cancel anytime.