Every fintech card is a stack of rented parts - but open banking skips the card entirely. Your data and your bank's payment rail, opened by your permission: near-free, instant, and the structural threat to interchange.
Step through consent, reading your accounts, pushing a payment, and the standing permission that makes recurring pay-by-bank work.
Data and payments, opened by permission - and the pieces that turn it into a real card alternative.
"Your data, opened by you."
Banks expose APIs that let you share account data and initiate payments through licensed third parties. It reframes the bank as a platform - and hands the customer, not the bank, control over who can see and move their money.
"Read vs move."
Two licences. An AISP reads account information (balances, transactions). A PISP initiates payments (pushes money). Many fintechs hold both - one to understand you, one to charge you.
"The card-free checkout."
Account-to-account payment pushes funds straight from buyer's bank to seller's, usually on an instant rail. Near-zero cost, instant settlement, no chargeback - which is exactly why merchants love it and card networks are buying in.
"Subscriptions without a card."
Variable Recurring Payments let a payee pull repeatedly within a consented rulebook. Sweeping VRP (moving money between your own accounts) is live; commercial VRP - paying third parties - is the piece that unlocks A2A subscriptions and bill pay.
"One pipe to every account."
Aggregators (Plaid, Yodlee, Tink, TrueLayer) sit between apps and thousands of banks, normalising connections. They began by screen-scraping with your login; the industry is now being pushed onto permissioned APIs and tokenised access.
"Beyond the checking account."
The next step extends the same consent model to investments, pensions, insurance and mortgages - your whole financial life, portable by permission. The EU's FIDA proposal is the flagship: 'open banking' becomes 'open everything.'
Pay-by-bank rides the instant rail with no interchange. Here is roughly what the same $100 sale costs the merchant, by rail.
Whether open banking happens is decided by regulators, not technology.
The pieces up close - Europe's mandate, America's wobble, VRP, the death of screen-scraping, and open finance.