Card Comps Overlay

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Overlays recent eBay sold comps (raw vs PSA 10) on sports card listings so you can spot under- and over-priced cards at a glance.

Users

−1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#258K

#215K among extensions

Version

0.6.0

updated 16 Aug 2026

Users

monthly, 2 months

Latest, 15 Oct 2026: 5 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 months

Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Card Comps Overlay

Open any eBay sports card listing and Card Comps Overlay tells you what the card actually sells for. It reads the listing, finds recent sold listings for that exact card, and gives you one call: BUY, FAIR PRICE, or PASS — plus the fair value in dollars. What you see on every listing: • Recent sold prices split by condition — raw, PSA 9, and PSA 10 — each with the median, the price range, and the latest sales with dates. Every sale links to the real listing so you can check it yourself. • Whether it's worth grading. On a raw card, it shows what a PSA 9 or PSA 10 outcome sells for and what you'd net over the asking price. • Exact matches only. A comp has to match the year, player, card number, and parallel. When a card barely trades, it says "only 2 exact comps" instead of padding the average with a different card.