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QR Payments

Point a camera at it, and it is paid

Every Droppy link generates a QR code that wallets read natively. The recipient, asset, chain and exact amount are all encoded — so there is nothing for your customer to type, and nothing to mistype.

The standard

A plain EIP-681 URI — not a proprietary code

EIP-681 is the Ethereum standard for payment request URIs. Because Droppy emits exactly that, any compliant wallet can read the code — there is no Droppy app for your customer to install, and no lock-in for you.

  • For ETH the URI carries the destination address, the chain id and the value in wei.
  • For USDG it targets the token contract and encodes a transfer call with your address and the exact base-unit amount.
  • Scanning never signs anything. Your customer still reviews and approves the transaction in their own wallet.
ETH request
ethereum:0xE0a4f428...048A@4663
  ?value=50000000000000000
USDG request
ethereum:0x5fc5360D...1d168@4663/transfer
  ?address=0xE0a4f428...048A
  &uint256=250000000

Where it fits

Made for counters, invoices and print

In person

Show the checkout page on a phone or tablet. The customer scans with their own wallet and the status updates on your screen as it confirms.

On paper

The QR is a high-contrast image that survives printing on an invoice, a receipt or a table card. Error correction handles a scuff or two.

In a message

Send the link and the QR together. Whichever your customer finds easier, both resolve to the same verified payment request.

Specifics

What the code encodes

Standard
EIP-681 payment request URI
Chain
Robinhood Chain, chain id 4663 (testnet 46630)
Assets
ETH natively, USDG as an ERC-20 transfer call
Amount
Encoded in base units, exact — never rounded or approximated
Error correction
Level M, comfortable for screens and print
Safety
Scanning only pre-fills a transaction. Nothing is signed or sent until the payer approves it in their wallet.

Ready to accept crypto?

Create your first payment link in under a minute. No signup form, no API key.