Tag archive
ACH, RTP, FedNow and Fedwire compared for engineers: limits with dates, cut-offs, ISO 20022 messages, reversal rules, Reg E vs Reg J, and API routing.
Fiserv says its Digital Asset Platform is live with Bank of North Dakota's Roughrider Coin. Four banks use it, cash nets daily, and BND calls it a deposit.
SEPA Direct Debit Core vs B2B for engineers: D-1 deadlines, 8-week refunds, mandate rules, AM04/MD06 return codes, and Stripe vs GoCardless vs Adyen.
Faster Payments, Bacs and CHAPS compared for engineers: limits, cut-offs, ISO 8583 vs ISO 20022, return codes, APP fraud cover and API routing.
Card decline codes from the API up: Visa's 2026 retry categories, Mastercard advice codes, SCA soft declines, and what Stripe and Adyen return.
How long a card authorisation lasts: Visa's 5/10/30-day rules, Mastercard pre-auth vs final auth, and the capture windows Stripe, Adyen and Braintree use.
How to decrypt Apple Pay EC_v1 and Google Pay ECv2 tokens, verify their signatures, rotate keys, and which PSPs accept the decrypted DPAN and cryptogram.
The cost equation in cross-border payments Cross-border payment costs rarely show up as...
The first time you take a cut of someone else's money, you make a decision about custody. Most people...
For most users, a payment is simple. They choose a product, click a button, approve the payment, and...
Migrating payment infrastructure to EU: DORA compliance performance benchmarks A European...
Trump's 19 May executive order tells the Fed to review opening master accounts to non-bank fintechs. Why payment developers should pay attention.