Open a Whatnot stream.
The panel sits beside the video. Move it, open it or hide it to suit how you watch.
Chaserr for Chrome / Private beta
Identify cards. See available prices.
See a card in a Whatnot stream. Chaserr looks for its identity and available prices, with your wishlist beside the video.
Whatnot · Desktop Chrome · Free account required for identification
◉ Beside your streamConcept view
THE NEXTgreat
find.YOUR CHASE CONTINUES
find.YOUR CHASE CONTINUES
Chaserr / Card contextLess switching tabs.
More watching the cards.
More watching the cards.
IdentityCheck the match
PricesSource & date
Your chaseWishlist connected
100 free recognition requestsSports recognition in betaPause whenever you want
From the stream to your collection
Stay in the moment.
Let the card come into view.
Chaserr looks for the card being shown, including cards in toploaders and slabs. A clear view helps it find the match.
Know what you’re looking at.
Review the identity and available prices, check your wishlist, and revisit recent cards in the recap.
Make an informed choice
The details matter.
Check the name, set, printed number and language against the card on screen, then choose the parallel. Recognition can be wrong. Available prices describe a particular printing and source, not a guaranteed sale.
How our prices work →Review the match
A recognition result is a starting point. Verify the exact card and language.
Check the card
Review the details before you bid.
Missing information
A clear view helps. Some cards and parallels still have no image or price in the catalogue.
Private beta / Register your interest
Watch with Chaserr.
The extension is in private testing. Request an invitation here; this does not install the extension or guarantee immediate access.
A few good questions
Before you join.
Where can I install it?
The extension is currently in private beta. Request access above. We’ll share installation instructions when an invitation is available.
Can I use it on my phone?
This extension is for desktop Chrome on Whatnot. For cards in your hand, use the Chaserr website scanner.
How does the free extension allowance work?
The beta includes 100 recognition requests, counted in this browser. A single card may use several requests while it is being read. At the limit, the extension offers the Pro waitlist. Joining that list does not reset the allowance or unlock more requests.
What does the extension read?
It detects cards from the video you have open and sends card crops to Chaserr for recognition. It does not read Whatnot chats, bids or your Whatnot account. Read the full privacy policy.
Chaserr is not affiliated with Whatnot. Recognition and price availability vary by card.