CARD COMPS
Add to Chrome

EBAY SPORTS CARDS

Know the real price
before you buy.

Card Comps sits on top of any eBay card listing and pulls recent sold comps in real time — raw, PSA 9, PSA 10 — then tells you the fair value and whether to buy or pass.

Add to Chrome — FreeFree · Works on any eBay card listing
CARD COMPS–×

FAIR PRICE

within ~15% of recent Raw (ungraded) comps

Fair value ≈ $145.25 — pay at or below this

ASKING

$156.00

Raw / ungraded

COMPS AVG

$150.54

Raw (ungraded) · 14 sold

▾Raw (ungraded)14 sold$145.25

Range $71.51–$230.00

  • 2025-26 Topps Chrom…Aug 8, 2026 · $148.00
  • 2025-26 Topps Chrom…Jul 23, 2026 · $175.00
  • 2025-26 Topps Chrom…Jul 13, 2026 · $199.99
  • 2025-26 Topps Chrome …Jul 2, 2026 · $120.00
  • 2025-26 Topps Chrome -…Jul 1, 2026 · $71.51

View all sold on eBay →

▸PSA 9$193.50
▸PSA 10no comps

If you buy at $156.00 and grade it: Gets PSA 9 → sells ~$193.50 (+$37.50 before fees)

THE OLD WAY

Five tabs and a guess.

  1. 01Copy the title, open eBay sold search, strip out the junk words.
  2. 02Filter graded from raw by squinting at thumbnails.
  3. 03Average it in your head before someone else buys the card.

WITH CARD COMPS

One panel. Already there.

The panel opens itself on the listing you're already looking at, with the comp math done. You spend your attention on the decision, not the research.

CARD COMPS–×

PASS

~40% above recent Raw (ungraded) comps

Fair value ≈ $430.00 — pay at or below this

ASKING

$599.99

Raw / ungraded

COMPS AVG

$475.00

Raw (ungraded) · 5 sold

WHAT IT DOES

Everything a comp check should be, without the comp check.

Real-time sold comps

Pulled live from recent eBay sales for the exact card, set, parallel, and print run — not a stale price guide.

▸Raw (ungraded)14 sold · $145.25

Buy or pass, with a number

A plain verdict plus a fair value ceiling, so you know the most you should pay before you click.

FAIR PRICE

within ~15% of recent comps

Fair value ≈ $145.25

Raw vs PSA 9 vs PSA 10

Comps split by condition tier so a graded sale never inflates what a raw copy is actually worth.

▸PSA 9$193.50
▸PSA 10no comps

Grading upside math

See what the card sells for if it grades, and what's left after you subtract what you paid.

Buy at $156.00 → PSA 9 sells ~$193.50 (+$37.50)

HOW IT WORKS

STEP 1

Install it

One click from the Chrome Web Store. No account, no setup.

STEP 2

Browse eBay

Open any card listing. The panel reads the title and goes to work.

STEP 3

Decide fast

Fair price or pass — then move on to the next listing.

FAQ

Questions before you install

Where does the comp data come from?+

Recent completed and sold eBay listings, matched to the card you're viewing and grouped by condition tier. Nothing is cached from a price guide.

How much does it cost?+

Card Comps is free to install and use on eBay card listings.

What does it read from my browser?+

Only the listing page you're on — the title, price, and condition — to build the comp search. It doesn't touch your eBay account, payment details, or unrelated tabs.

Which cards does it work on?+

Modern and vintage sports cards on eBay: base, parallels, numbered inserts, and graded slabs. If the listing title identifies the card, Card Comps can comp it.

Does it work on mobile?+

It's a desktop Chrome extension, so it runs in Chrome on Mac, Windows, and Linux — plus Chromium browsers like Edge, Brave, and Arc.

Stop overpaying for cards.

Add Card Comps to Chrome and get the comps on every listing you open.

Add to Chrome — Free