Real-time card ID
Ximilar's TCG vision API identifies the card from a single video frame. 94.1% accuracy across 238 scans on live streams.
Know the card.
Know the price.
Before the next bid.
Slabbr is a Chrome extension for whatnot.com. Press Shift+S during any livestream — it identifies the Pokémon card on screen and shows live market price, condition ladder, and a real-time profit signal against the current bid.
~3s
scan → price
94.1%
ID accuracy
5
condition tiers
$0
during beta
whatnot.com/live
01 How it works
1
Install the extension
Drop the unpacked folder into Chrome. We'll DM you the build the day your beta slot opens.
2
Open any Whatnot stream
Slabbr lives on whatnot.com. No setup per stream — it's there when you need it.
3
Press Shift+S
Card, set, price, condition ladder, and the live bid tracker — all under 5 seconds. Decide before the timer hits zero.
02 What you get
Live market price
Pulls from JustTCG — TCGPlayer-backed pricing for NM, LP, MP, HP, and DM. Click any condition to flip the headline.
Live bid tracker
Watches the auction's current bid and computes your margin in real time. Green when there's room. Orange when it's close. Red when you're underwater.
Confidence signal
HIGH, MEDIUM, LOW — driven by Ximilar's distance scores, retuned on real data. When Slabbr's unsure, you'll know.
Candidate swap
Wrong set? Click any of the 4 alternates — prices update instantly from cache. No second API call, no waiting.
Copy log row
One click writes a 22-column TSV row. Paste straight into the stress-test sheet. Every scan auditable.
Join the private beta
Slabbr is in private beta while the shared backend gets built. We're opening slots in small batches. Drop your email and we'll reach out when yours is ready.
We send one email — when your slot opens. No marketing, no lists sold.
03 FAQ
What is Slabbr exactly?
A Chrome extension that runs on whatnot.com. During any live auction, you press Shift+S and Slabbr identifies the card on the stream and shows the live market price — plus a real-time profit signal against the current bid. Built for Pokémon TCG, English language, in beta.
What will it cost?
Free during private beta. Public launch is planned at $10/month. Break-even is 9 paying users — this isn't a venture play, it's a tool the founder uses every day and is opening up to friends and collectors.
What cards does it work with?
Pokémon TCG, English. Other TCGs (Magic, Lorcana, One Piece, Sports) are on the roadmap but not in the beta. JustTCG indexes most modern + vintage sets; very-new sets (within a few weeks of release) may not have prices yet — Slabbr shows "no pricing data" rather than guessing.
Is my data safe?
The extension stores API tokens in chrome.storage.local on your machine — never sent to a Slabbr server. The only data leaving your browser is the video frame for the scan, sent directly to the identification API. No telemetry, no tracking pixels, no analytics in the extension itself.
Why a waitlist? Why not just download?
Each scan costs the founder real money against an identification API. The friend beta runs on the founder's budget — slots open as the shared backend catches up. The full self-serve launch follows when the backend can rate-limit and bill cleanly.
How accurate is it?
94.1% ID accuracy on 238 real-world Whatnot scans. ~100% price accuracy on cards we have data for (~82% of correctly-ID'd English cards). The overlay shows a HIGH / MEDIUM / LOW confidence label on every scan so you know when to trust it.