Category Archives: payments

Payment Generic Discussions

Hypothetical Scenario — Using Star as Entry Point for Zelle at POS

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Summary. This is my best case scenario for a STAR acqusition and as a banker I still wouldn’t do it. PIN networks are archaic. I would externalize Zelle for POS and sell it to merchants based on value (ex instant funds availabiltiy, liability shift at POS and eCom). For the tech, I would subcontract the service to Visa while I own the network.  Don’t bother reading this blog unless you are a payment geek that wants to think about the macro options on a “new debit network”. Remember, even if the top 3 banks moved to a new debit network, it would only be a 2% revenue hit to Visa. This is almost noise.

Background

I’ve spent this week writing about what a top‑4 bank consortium buying Fiserv’s Star network would and wouldn’t accomplish. On Monday I laid out five business and political reasons the deal is unlikely to happen. Tuesday’s blog explained how ApplePay/PIN-debit works within a technical deep-dive. This blog outlined why owning Star doesn’t buy the tokenization and provisioning path that Visa still controls. Yesterday’s retailer and industry feedback captured what I heard from the merchant and processor side stakeholders. One of the stakeholder ideas surfaced with a new idea worth sitting with: what if you didn’t buy Star to run PIN debit at Durbin-exempt rates — but instead as the on-ramp for accepting Zelle at the POS?

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FISV: Star Sale? Retailer and Industry Feedback

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Short update on my industry discussions yesterday (in very brief form). 

Retailers

  • Convinced US Banks would attempt to follow COF/Discover model and that Banks were not concerned about the politics. 
  • Emphasize banks want control, with most seeing that BAC/WFC would make sense as owners of STAR
  • Agreed that retailers would react to price increases, but only top 20 retailers have payment teams with enough depth to act on a plan (ex turn off Star).
  • Believed acceptance rate and processor incentives would be a key hurdle, but that if pricing was around 125bps there was room to create superior processor incentives. 
  • Loss of Tap to Pay and eCommerce (ie no PIN Debit) were consensus consumer impacts with no clear workaround. 
  • Agree that retailers would strongly lobby OCC and CPFB that this was an obvious effort to end run Durbin. May seek to block acquisition. 
  • Discover is an EMVCO member with most tools that would allow conversion of Pulse to dual message. No path for STAR (or EMVCo membership)
  • Bank Consortium could use this as a path toward Zelle acceptance at POS (for 125 bps). This was probably the biggest “new” insight I gained

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Understanding ApplePay in PIN Debit

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Payment Geek detail on the EMVCO Dependencies of Debit and How Cap One Solved It

This is a technical addendum to today’s post on the reported JPMorgan/BofA/Wells/PNC exploration of buying Fiserv’s Star network. That post laid out five business and political reasons the deal is unlikely to happen. This one goes underneath the business case to the technical architecture that makes the wallet portion (ie ApplePay, GPay, SamsungPay) of the problem particularly ugly for any bank that thinks owning a PIN debit network gets them out from under Durbin.

The short version: an issuer that buys Star cannot simply route its ApplePay volume through Star. The tokenization and provisioning plumbing that makes Apple Pay work belongs to Visa and Mastercard, sits inside a standards body (EMVCo) that issuers are not members of, and is architecturally structured around the card brand on the card (not the issuer that issued it). A bank that owns Star still can’t put a Star token in Apple Pay; it is a new AID in the phone.

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Are US Banks Really Considering a Durbin End Run with FISV’s Star?

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(Paid Subscriber Research)

Yesterday’s WSJ story that JPMorgan, Bank of America, Wells Fargo and PNC have held “preliminary and tentative” talks to buy Fiserv’s Star debit network is being read as the opening shot in a big-bank campaign to escape Durbin. My first reaction: this is a bit of old news. Fiserv and its private equity suitors have been shopping Star as a spin-off for the better part of four years. Every time the pitch surfaces, the same five objections surface with it. Nothing about the current version of the deal has removed those objections; if anything, the political climate has made them harder.

Before I get to why I don’t believe it will happen, a quick refresher on the business logic, because that logic is real, and it explains why Fiserv can keep the pitch alive.

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Open USD – Stablecoin’s New Gold Standard for Trust, Compliance, Governance and Economics

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July 1, 2026

Executive Summary

  • 140+ institutions — Visa, Mastercard, Stripe, BlackRock, Google, Coinbase, and major global banks form the largest stablecoin consortium ever assembled

  • Shares reserve economics — Partners receive yield from underlying reserves, not the issuer; flips the Circle/Tether model

  • Zero-fee minting at scale — No volume limits, no enterprise penalties

  • Pre-transaction compliance — Transfer hooks block sanctioned transactions before settlement, not after

  • Burn and clawback authority — Architectural ability to freeze/burn for OFAC compliance built into Token-2022 implementation

  • Confidential transfers with regulatory visibility — ZK-encrypted balances for corporate privacy; viewing keys for auditors

  • Neutral governance — Independent board of ecosystem partners; no single corporate controller

  • Stripe default — “The default stablecoin for businesses running on Stripe”

Yesterday, we witnessed the launch of what may become the most consequential stablecoin ever: Open USD (OUSD). With over 140 financial, technology, and crypto institutions signing on—from Visa and Mastercard to Stripe, BlackRock, and Google. This isn’t merely another stablecoin entering a crowded market. This is the emergence of a new trust network architecture that I’ve been writing about for years.

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PIX Update

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My last blog on PIX was 2022, so it is time for an update. When Brazil’s Central Bank (BCB) launched PIX in November 2020, the stated goal was simple: kill cash. Four years later, mission accomplished and then some. PIX has evolved from a peer-to-peer transfer tool into something far more consequential: a domestic debit scheme that challenges the card networks (debit).

The June 2026 launch of Pix Automático marks the inflection point. Brazil now has a government-mandated recurring payment rail that bypasses Visa and Mastercard entirely for subscriptions and utility billing. The BCB’s own PIX Statistics dashboard shows the trajectory:

  • 79.7 billion transactions in 2025—a 26% year-over-year increase
  • BRL 35.3 trillion (~$6.3 trillion USD) in value moved
  • 93% of Brazilian adults now use PIX
  • For the first time, Person-to-Business (P2B) transactions surpassed P2P, now representing over 44% of total volume
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ZelleUSD — A Private Coin

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Builds on: Stablecoins: A New Model of Trust | JPMorgan, Citi and TCH: Tokenized Deposits ON Chain | Open Banking, Open Payments and Trust Networks

Early Warning announced this week that Zelle is going international, starting with India — the world’s largest remittance destination. Alongside this, they unveiled ZelleUSD (ZLUSD), which they’re calling a “proprietary U.S. dollar-backed stablecoin.” Cue the analyst notes about banks “finally getting into stablecoin.”

I’m already laughing… this is Banks BEATING Stableocin and Remittance Providers at their own game with a closed network. This Is Not a competitor to USDC, and you can’t buy it on Coinbase, so Don’t Get Confused.

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Proposed Stablecoin KYC Rule

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The Fed/FinCEN and OFAC just revealed their proposed Stablecoin KYC rule and consistent with the GENIUS Act it entails bank-level KYC requirements for Stablecoin Issuers (see blog: No more Stablecoin “rewards”). This combined with the 303-page FinCEN/OFAC rule on transaction monitoring and secondary uses places substantial compliance burdens on Stablecoin issuers. So much that it is said the hottest job in Fintech is in Stablecoin compliance.

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Agentic Data Battle: Intent

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Key Friction Point in Agent (M2M) Transactions. Example of why real agentic transactions are 2-3 yrs away. We have a new party in a transaction that everyone needs to trust: the agent. Mastercard/Google Verifiable Intent is a LONG WAY from satisfying the need. It’s a self-attestation (see the Technical Addendum at the end of the Blog).

My prior blogs have focused extensively on the trust challenge in agentic commerce: authenticating the consumer and the agent (the actor). As I discussed in EMVCo and DPCs, financial institutions must verify and authenticate the four pillars of a transaction: the User, the Instrument, the Actor (Agent), and the Action (Payment). Today, I want to dive deeper into the fourth pillar—the Action—and the emerging battle over intent data.

A New Party to the Transaction

For decades, payment transactions have involved a familiar cast: the consumer, the merchant, the issuer, and the network. Each party has well-defined roles, risk allocation, and data flows governed by established rule sets. Agentic commerce introduces a new party: the Agent.

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Can Processors Win a Role in Agentic?

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Adyen’s stock is down over 40% this year. Investors aren’t just punishing one company; they’re repricing the entire processor category as agentic commerce threatens to restructure who controls economics and merchant relationships. The market sees what I’ve been writing about for 18 months: processors are at risk of becoming dumb pipes.

Yesterday, Adyen announced Adyen Agentic a suite of modular APIs encompassing Agentic Feed (product/inventory), Agentic Cart (checkout orchestration), and Agentic Payments (authentication, fraud, tokenization). The positioning is explicit: a “universal translator” that lets merchants integrate once and participate across every agent platform, protocol, and payment method.

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