Cardcastr is built for Pokémon live shows on Whatnot. Interactive overlays, auctions from the dashboard, portrait multi-camera — everything a card seller needs, without the complexity of OBS.
Two streams. The same seller. Zero extra setup.


Made for Pokémon sellers on Whatnot. No complex setup, no extra software — works right out of the box.
Cardcastr lets you use multiple cameras and arrange them as you prefer, in Whatnot's vertical format.
Type a card name or number and it appears on screen instantly. Over 21,000 cards available, with updates on new releases.
Scan a QR code and your phone streams live into Cardcastr. No installation, no configuration needed.
Logos, banners, custom backgrounds — build your scenes with the mouse and give your live a real visual identity.
Cardcastr offers many overlays (quizzes, games, polls, and more to come), so no one gets bored during your lives.
No need to switch between Cardcastr and Whatnot — all the essential features are already built in.
Beta access is by invitation. Leave your email and we'll notify you when a spot opens up.
The beta opens late August — limited spots, waitlist members get served first.
Import your images, build your scenes with the mouse, and give your live a real visual identity — simple, no technical skills required.
Ready-to-use overlays, controlled from the Régie.




Cardcastr isn't a general-purpose streaming tool to tame — it's a control room built for one thing: TCG lives on Whatnot.
| OBS | Cardcastr | |
|---|---|---|
| Time before your first live | Several hours: scenes, sources, encoder, resolution… | Under 10 minutes |
| Vertical 9:16 format | Canvas to configure by hand | Native, built for Whatnot |
| Phone as a second camera | Third-party app + plugin to install | Scan a QR code |
| Show a card in HD | Images to prepare one by one | Built-in search — 21,000+ cards |
| Start an auction | Alt+Tab to Whatnot mid-live | Built into the control room |
| Games & polls for the chat | Plugins to hunt down and configure | Quiz, polls, silhouette — included |
| Price | Free | €9.99/month |
OBS is a great tool, free and ultra-flexible — if you've already mastered it, keep it. Cardcastr is for people who want to stream, not configure.
“As a Pokémon seller on Whatnot, I struggled with OBS and never got the result I was after. Cardcastr is the tool I wish I'd had from my very first live.”
Cancel anytime.
Monthly
Available when the beta opens
Join the waitlistAnnual
€6.67/month
Available when the beta opens
Join the waitlistNo. Cardcastr fully replaces OBS: plug in your cameras, pick your scene and go live. No streaming knowledge required.
Yes. Cardcastr uses Whatnot's official mechanism for streaming software (the same one designed for OBS). Your regular seller account is enough — nothing to request from Whatnot.
A Windows PC and your phone. The PC webcam films one angle, your phone becomes a second camera by scanning a QR code — nothing to install on it.
macOS support is in the works. Join the waitlist and mention it — you'll be notified as soon as it's ready.
€9.99 per month or €79.99 per year, cancel anytime. The beta is currently closed: people on the waitlist get access first.