Jupa

Get Paid In
USDC From
Any Chain

Customers scan and tap Pay. You get USDC on Arc in seconds, whichever chain they hold it on.

Get Started

Demo: a merchant creates Kola Coffee, the cashier charges $4.50, and the customer scans the QR and taps Pay. The till turns green and shows Paid.

Same customer.
Same coffee.

Without Jupa
Switch network, bridge, buy gas, wait. The queue walks away.
With Jupa
One tap from any chain. Paid in seconds.

How it works

From QR to Paid
in three taps

No app to install and no chain to pick. The cashier sees one number, the customer sees one button.

  1. Merchant01

    Set up once

    Sign in with email, name your store and add the address you want to be paid at. Print the QR. About two minutes.

  2. Cashier02

    Type the amount

    Open the till on any phone. Type the price, tap Charge and turn the screen to the customer.

  3. Customer03

    Scan and tap Pay

    They pay from the wallet they already use. When the payment is final, the till turns green.

Whatever chain it starts on, you get USDC on Arc

Jupa picks the fastest balance the customer has and shows the wait before they tap Pay.

Your balance on Arc

$1,284.50

  • Never held by Jupa

    Payments go straight from the customer's wallet to your address.

  • No gas token

    On Arc, fees are paid in USDC. You only ever hold one asset.

  • A receipt for every sale

    Amount, time and a public link to the final transfer.

Built for events

Made for the
busiest counters

Conferences, hackathons and meetups, where the whole queue already holds USDC.

  • Food & coffee

    Flat white

    $4.50

  • Merch

    Hackathon tee

    $25.00

  • Tickets

    Day pass

    $40.00

Example receipts: payments from several chains, all marked Paid.

Infrastructure

Money never
touches Jupa

Circle moves the USDC. Arc settles it. Jupa only watches, and tells the till.

  1. Checkout

    Reads the store's payout address from the registry on Arc.

  2. Customer wallet

    Signs one approval, labelled as a payment to the store.

  3. Circle

    App Kit picks the route; CCTP or Gateway moves the USDC onto Arc.

  4. Merchant payout

    USDC lands straight in the merchant's address on Arc.

  5. Jupa

    Sees the final transfer and turns the till green. Holds nothing.

  • Settlement

    Arc

    Final in about a block. USDC is the gas.

  • Cross-chain

    Circle CCTP

    App Kit and Gateway bring USDC onto Arc.

  • Payout address

    Onchain

    Read from the store registry, never the browser.

  • Funds held by Jupa

    $0

    No custody, no keys, no pooled balances.