Yes, Myki can autofill all the payment card information in your browser via the Myki browser extension the same way that it autofills your usernames and passwords. 

When you see a payment card form with the Myki Owl icon, click on it and select the payment card that you would like to autofill. This will send a login request to your phone and as soon as you approve it, Myki will autofill the data.

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