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OP Open Payment Address Protocol Payment page Private payment page

Pay securely

Check the details. Then pay.

We check who you are paying and show the available ways to pay. You choose what happens next.

OPAP checks the payment address in this browser. It never receives your bank login, holds your money, or approves a payment for you.

Add payments to your website

Check the payment address

This is the address you were asked to pay.

Payment address

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Change address

We have not asked you to approve or send any money yet.

Find ways to pay

We check that the address is valid and find the payment methods offered by the recipient.

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Security history on this device

This browser remembers verification information so it can warn you if a payment destination changes. It does not store your amount, description or payment URI.

Clearing this data also removes the safety checks learned from earlier payments on this device.

How this payment is protected
  • OPAP checks that the payment details come from the expected website and have not changed unexpectedly. Public payment files are retrieved through a restricted Cloudflare relay.
  • A changed payment destination or failed security check stops URL and QR generation.
  • OPAP never holds your money or your payment credentials.
  • OPAP does not connect to wallets or banking networks, submit transactions, or claim that a payment settled.