A payment processor is the company that moves card transactions for you: authorization, settlement, and the fees on both. Stripe, PayPal, and Verifone are processors; the card networks sit behind them and the merchant account concept sits beside them.
Processors wrap the card system's costs and risks into one rate plus fine print. They remain the widest consumer reach in payments, which is why they sit alongside (not instead of) crypto settlement.
A payment processor operates the card machinery for a merchant: authorization requests, settlement batches, fee accounting, and the statements that follow. Processors sit between the merchant's checkout and the acquiring bank's systems, and their product is that plumbing plus the pricing wrapper around interchange.
Their economics are the merged shape of the card system's costs: interchange from the networks, assessments, the processor's own margin, and the monthly line items that statements are famous for. Effective cost is therefore more than the quoted rate, and the honest comparison reads a real statement rather than a landing page.
In a composed checkout, the processor keeps exactly the card leg. Crypto settlement runs beside it non-custodially, and the merchant's own processor account means the card economics stay the ones that were negotiated. The buyer sees one checkout; the rails see their own familiar paths.
One more note on card rails composed with crypto settlement: the processor's dispute machinery remains the cards' own, and it polices only the card legs. The crypto legs settle finally with no dispute window, which means refund policy is a merchant decision there, executed directly rather than adjudicated. Knowing which legs live under which regime is the whole of managing the difference well.
A merchant connects its existing processor credentials to composed checkout: cards authorize and settle exactly as before at the negotiated rate, crypto settles to the merchant's wallet, and both legs' records land in one export.
On U.CASH Pay, card processing runs through your own processor account (Stripe, Verifone, PayPal) while crypto settles non-custodially: one checkout, two settlement worlds.
Processors are how cards reach your buyers, and keeping your own account keeps the relationship, rate, and risk profile yours. U.CASH composes rather than replaces: the card leg stays with your processor, the crypto leg settles non-custodially. On statement review: reconcile the processor's effective monthly cost annually against the composed checkout's crypto leg on the same volume. The comparison frequently reshapes the asset mix a merchant offers, weighting toward whichever rail's real costs the data favors.
Every term behind the rails, the assets, and the settlement.