Square
Pair AESI with Square terminals to offer direct device-to-device payments alongside your normal card flows.
ÆSI Pay friends or take payments in person—offline, zero fees, hardware-grade privacy
Pass value person to person or at checkout without accounts, relays, or extra fees.
Product
Light and dark, tuned for Device Native.
Get a quick peek, then pop open full screens for the ÆSI wallet in both themes.
Offline first
Bluetooth, NFC, and QR handoffs keep payments moving without a network.
Hardware trust
Secure enclave storage, device attestation, and signed notes by default.
Zero-fee D2D
Device-to-device transfers stay free; mint/redeem can be tuned by governance.
How it works
Three clear steps from checkout to settlement
01
Load a device balance
Add funds to a hardware-protected balance. No accounts or sensitive details are shared.
02
Hand off in person
Hand value to friends, crews, or customers via Bluetooth, NFC, or QR. It clears on the spot between the two devices.
03
Settle when it suits you
Keep balances on-device for repeat customers, or move funds to your preferred destination later.
Integrations
Works alongside the tools you already use
Connect AESI to your existing checkout stack for fast in-person handoffs without changing your front of house.
Shopify
Keep your Shopify catalog and orders while letting customers hand off payments privately in person.
Toast
Layer AESI into Toast for table, bar, or counter service—fast local settlement without extra hardware.
Early access
Pilot ÆSI with your team
Try ÆSI in your shop, venue, or crew. We’ll help you onboard, map flows, and gather feedback before wider release.
What we support
In-person pay/collect · Offline handoff · Teams
What you get
Setup help · Training · Priority fixes
Who it’s for
Retail, events, people, pop-ups
About
About ÆSI
We exist to make everyday money feel human again—private, portable, and ready to move without permission. Our mission is to protect the intimacy of day-to-day spend while giving people and merchants a faster, fairer rail than legacy payment stacks.
ÆSI pairs Device Notes with direct device-to-device handoffs so you can settle on your own hardware before touching any intermediary. No accounts, no waiting, no surveillance.
ÆSI blends ÆS for coinage with I for intelligence, adding to the journey of handing over copper coins in Rome to handing over notes from device to device in cafes.
Contact
Talk with the ÆSI team
Reach us directly for product questions, pilot onboarding, or support. We read every note and respond quickly.
Direct line
hello@aesi.app
Tell us what you’re building or the flow you want to support—we’ll follow up with the right person.