> an API connection between bank and subscription? This already exists. Mastercard (and Visa?) has an API that lets banks notify subscriptions when your card

> an API connection between bank and subscription? This already exists. Mastercard (and Visa?) has an API that lets banks notify subscriptions when your card changes to update the card number https://developer.mastercard.com/product/automatic-billing-updater-abu/ https://developer.mastercard.com/product/automatic-billing-u...