Scan items on the till, request payment, then tap the card on your phone to approve it — synced over the internet in real time.
Not set up yet. Open this file in a text editor, find FIREBASE_URL near the top of the script, and replace the placeholder with your own Firebase Realtime Database URL.
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Card frozen
Three declined attempts in a row were detected. This is a security pause, not a lock-out — you're always in control of your own card.
Payment requested by the till
£0.00
Processing…
▲BAV
GBP · UK
Essential Wallet
Balance
£0.00
5411 5499 5912 4900
Valid thru04/29
VISA
Business
ID-STUDENT-ALPHA-7712
Synced with the till automatically.
Optional and student-controlled — off by default, and only for discretionary spend above the threshold you choose.
£0.00
safe to spend per day (essential)
How is my security protected?
This demo never touches a real bank account. If BAV became real: no bank logins or passwords would ever be stored by BAV. Access would go through UK Open Banking — the same regulated, read-only, revocable standard already used by Monzo, Starling, and other UK banks — never screen-scraping or password storage. You could revoke access at any time from your own bank's app.
Retail counter
Tap an item to scan it into the basket, then request payment.
This card is currently frozen after repeated declines. The student needs to unlock it on their phone before another payment can be requested.