eBay alerts for card people
Snipe deals
before anyone
else sees them.
Set an alert for any card, slab, or sealed product. CardboardSniper watches eBay around the clock, prices every new listing against real comps, and hits your inbox the minute something lists below market.
2003-04 Topps Chrome LeBron James #111 RC PSA 9
▼ 21% below comps · $3,350
$2,650
New listing1999 Base Set Charizard Holo 4/102 PSA 8
▼ 14% below comps · $1,385
$1,190
New listing1986 Fleer Michael Jordan #57 RC PSA 7
≈ at comps · $14,900
$14,800
Pokémon Evolving Skies Booster Box (Sealed)
▼ 18% below comps · $1,240
$1,020
New listing2018 Prizm Luka Dončić Silver RC PSA 10
▲ 6% above comps · $1,300
$1,375
Example alerts — comp values from real sales data
01
Set an alert
Type anything you'd search on eBay — or paste a cert number or an eBay/TCGplayer link and we'll identify the exact card.
02
We watch eBay 24/7
Every few minutes we sweep for newly listed items matching your criteria: price caps, BIN or auction, and how far under market.
03
You get there first
New matches land in your feed and inbox within minutes — each one scored above or below real comps so you know instantly if it's a deal.
Priced against real comps
Every listing is checked against fair market value computed from actual recorded sales — not asking prices. That's how a listing gets its verdict:
▼ 21% below comps · $3,350 — move fast
≈ at comps · $14,900 — fairly priced
▲ 6% above comps · $1,300 — let it sit
Your rules, per alert
- · Max price and BIN / auction filters
- · Only capture listings ≥ N% below market
- · Email on every match, only real deals, or never
- · Find exact cards by PSA / BGS / CGC / SGC cert number
- · Start from any eBay or TCGplayer link
Three ways to play it
Snipe graded cards
Alert on a graded card with a “% under market” rule. Sellers underprice all the time, whether by mistake or chasing a quick flip. You get pinged before the sharks find it.
Sealed below average
Sealed product has a going rate everyone knows. Alert under it and be the first click when cheap sealed hits, because it never lasts an hour.
Grading plays
Alert on clean raw copies of cards whose graded comps run hot. Buy raw cheap, send to grading, pocket the spread between raw and slabbed.
Pricing
Monthly plans. Cancel anytime.
Collector
For hunting the one grail you actually care about.
$20/mo
- 1 alert
- Real-time eBay monitoring
- Instant email alerts
Sniper
For collectors working a short list.
$40/mo
- 3 alerts
- Real-time eBay monitoring
- Instant email alerts
Sharpshooter
For serious hunters covering more ground.
$60/mo
- 5 alerts
- Real-time eBay monitoring
- Instant email alerts
Dealer
For flippers and stores running inventory plays.
$100/mo
- 10 alerts
- Real-time eBay monitoring
- Instant email alerts
- Your alerts check first
Every plan has every feature — you're just picking how many cards to watch.