A contactless card (or app) that lets cafes receive full payment instantly, bypassing Visa/Mastercard fees via EMV standards and blockchain settlement.

How does OpenPasskey work for coffee shops?

Customer taps like normal—EMV compliant. Backend verifies on Base L2, settles in seconds to merchant wallet. No 2-3 day waits, no cuts.

Will OpenPasskey lower coffee prices in Australia?

Possibly—cafes save $1.6B/year aggregate. With RBA surcharge ban, margins improve; expect subtle drops or better perks by 2027.

🤖 AI Dev Tools

Your $5 Coffee Tap: 80 Cents to Banks, OpenPasskey's Full-Payment Fix

Tap for coffee. Banks feast. A Sydney startup's card says no more. Full $5 to the cafe, instantly.

DevTools Feed Apr 03, 2026 3 min read 21 views

Contactless card tapped on coffee shop terminal, showing full payment flow to cafe

⚡ Key Takeaways

Card taps skim $0.015-$0.04 per $5 coffee to banks and processors—$1.6B yearly in Australia. 𝕏
OpenPasskey delivers full $5 instantly via EMV + on-chain settlement, already in 20+ Sydney cafes. 𝕏
RBA surcharge ban helps consumers but bakes costs higher; this startup targets the root. 𝕏

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#EMV contactless #OpenPasskey #blockchain payments #payment fees

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Originally reported by dev.to

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