Sleever Beta

Scan it. Buy it. Sleeve it.

Find football card deals on eBay and Vinted.

PC only · Desktop Chrome extension · Closed beta

See what goes into a deal

Illustrative example

A football card, compared like for like

Same set, parallel and grade. Illustrative prices.

Listing price
€60
Shipping + estimated fees
€8
Estimated landed cost
€68
Estimated sale range
€80–95

€12–27 below the estimated range before resale costs. This example is not a profit forecast. Check condition, seller and evidence before buying.

How it works

Illustrated walkthrough · results depend on available sales.
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12Deals found
5Watchlist

Scanner

Scan eBay & Vinted listings for underpriced cards.

Start scan

Scanner

Type a player name to search eBay & Vinted.

Scanner

Type a player name to search eBay & Vinted.

Lamine Yamal Rookie
Search marketplaceScan on eBay
Scanning eBay…
Scan complete
Search marketplaceScan on Vinted
Scanning Vinted…
Scan complete

2 deals found

Example results · compare sales evidence

eBay
Lamine Yamal 2023 RookiePSA 10
View range
Vinted
Lamine Yamal 2023 RookieRaw · NM
View range

How we check value

Identify the exact card

Match the player, set, parallel and grade. Use photo checks for unclear titles.

Compare relevant evidence

Compare matching cards using the sources included in your plan.

Include the buying costs

Include shipping and estimated fees. Confirm the marketplace total.

Know the limits

Limited evidence means less reliable estimates. Profit and authenticity are not guaranteed.

About us

Built for collectors who want more than just a collection.

Find deals, identify cards and keep track of your collection.

Sign up
Johan Cruyff Topps Ajax Cut Autograph Relic cardJohan Cruyff
Ronaldinho Topps autograph cardRonaldinho
Ronaldo Nazario Topps Museum autograph relic cardRonaldo Nazário

What it does

Live deal detection

Sleever looks for comparable sales and estimates a price range when the evidence is sufficient. Some cards need photo confirmation or have no usable sales. Older sales may be included and are dated in the results.

eBay + Vinted

Works on both marketplaces, with landed cost, shipping and fee estimates built in.

AI photo verification

When a title alone isn't enough to confirm a card number or parallel, Sleever can read it straight from the listing photo.

Watchlist & shared deals

Save any card for later, and see deals other Sleever users have already found, all from one dashboard.

Plans

Closed beta: use an invitation code in Account → Beta access. The paid plans below are separate from beta access. Activating a beta code does not purchase a subscription.

Academy
€8 / month

Billed monthly

  • 20 scans / day
  • 15 AI photo checks / day
  • eBay + Vinted evidence
Details
20 scans per day

One marketplace search session.

15 AI photo checks per day

Identify card details from photos.

Evidence sources

eBay and Vinted evidence. MySlabs and Fanatics evidence are not included.

Deal notifications

No email deal alerts.

Billing & access

Billed monthly from day one; no free trial. PC only, with the Chrome beta extension.

Ballon d'Or
€28 / month

Billed monthly

  • Unlimited scans
  • 200 AI photo checks / day
  • eBay + Vinted + MySlabs evidence
  • Deal alert emails
Details
Unlimited scans per day

One marketplace search session.

200 AI photo checks per day

Identify card details from photos.

Evidence sources

eBay and Vinted evidence, plus MySlabs and Fanatics where matching evidence is available.

Deal notifications

Email deal alerts included.

Billing & access

Billed monthly from day one; no free trial. PC only, with the Chrome beta extension.

Cancel anytime. First Team: 7-day trial. Academy and Ballon d'Or: billed from day one.

Your first scan, step by step

PC and Chrome required. Activate your invitation before your first scan.

1

Activate your invitation. Sign in and enter your access code.

2

Download and install. Get the extension from your Account page and follow the Chrome installation steps. Keep its folder on your PC.

3

Connect your account. Sign in to the extension with the same account. Your beta access is already active.

4

Run your first scan. Open an eBay or Vinted listing or search page. Use the Sleever panel to scan, review the evidence and save cards to your watchlist.

Why am I not finding any deals?

Not every search finds a deal. Here are the common reasons.

The price is already close to market value

The price, shipping and fees leave too little margin.

There is not enough reliable evidence

Too few matching sales can prevent a reliable estimate.

The card cannot be matched confidently

Unclear titles, photos or grades can prevent an exact match.

Your search needs another angle

Try another player, set or marketplace. Add the year or parallel to narrow your search.

No deals, or no completed scan?

Zero deals can be a valid result. If scanning fails, check the extension, sign-in, plan and daily allowance.

Still stuck? Contact support with your search, marketplace and the message shown.

A few things before you start

Does Sleever work on my phone?

No. PC with Chrome only.

What cards and marketplaces does it cover?

Sleever focuses on football / soccer trading cards and scanning eBay and Vinted. Matching depends on the card and available evidence. Marketplace availability can vary by country. MySlabs is an additional evidence source on First Team and Ballon d'Or, not an extra scanning marketplace.

What do the plan limits mean?

Scans and AI photo checks have separate daily limits. See Account for usage.

How does the free trial work?

First Team offers one 7-day trial for eligible accounts, then monthly billing unless canceled. Other plans are billed from day one.

How do I cancel or change my plan?

Go to Account → My plan → Manage billing.

Does a deal verdict guarantee a profit?

No. Check the evidence, final costs, condition and seller before buying.

What if I need help installing or scanning?

Contact support with the marketplace, your browser version and a description of what happened. Do not send passwords or payment details.

Ready for your first scan?

Use your invitation code to activate access and download the extension.

Activate beta accessAlready have access? Sign in