Payment Infrastructure Development

🧭 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀 𝗚𝘂𝗶𝗱𝗲: 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴, 𝗔𝗰𝗾𝘂𝗶𝗿𝗶𝗻𝗴 & 𝗜𝘀𝘀𝘂𝗶𝗻𝗴 Payments often look simple on the surface — tap, click, approve. Behind every transaction, however, sits a multi-layer financial infrastructure with clearly separated roles, responsibilities, and economics. Here’s a clean breakdown. 🧩 𝗣𝗥𝗢𝗖𝗘𝗦𝗦𝗜𝗡𝗚 — 𝗧𝗵𝗲 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 𝗟𝗮𝘆𝗲𝗿 The technological backbone of payments. 🔹 Transaction authorization & validation 🔹 Message routing (ISO 8583 / ISO 20022) 🔹 Fraud checks & risk scoring 🔹 Clearing & settlement preparation 🔹 Card, wallet, A2A & cross-border flows ➡️ Processing doesn’t face the customer — it connects everyone else. 🧾 𝗔𝗖𝗤𝗨𝗜𝗥𝗜𝗡𝗚 — 𝗧𝗵𝗲 𝗠𝗲𝗿𝗰𝗵𝗮𝗻𝘁 𝗦𝗶𝗱𝗲 Everything that enables businesses to accept payments. 🔹 POS, SoftPOS / mPOS, e-commerce 🔹 Merchant onboarding (KYC / KYB) 🔹 Terminal provisioning & lifecycle (TMS) 🔹 Settlement to merchant accounts 🔹 Chargebacks & dispute handling ➡️ Acquirers translate payments infrastructure into merchant revenue. 💳 𝗜𝗦𝗦𝗨𝗜𝗡𝗚 — 𝗧𝗵𝗲 𝗖𝘂𝘀𝘁𝗼𝗺𝗲𝗿 𝗦𝗶𝗱𝗲 Where payment instruments are born and controlled. 🔹 Debit, credit, prepaid & virtual cards 🔹 Tokenization & lifecycle management 🔹 Balance, limits & real-time authorization 🔹 Customer support & disputes ➡️ Issuers own the customer relationship and credit risk. 🔁 𝗖𝗮𝗿𝗱 𝗧𝗿𝗮𝗻𝘀𝗮𝗰𝘁𝗶𝗼𝗻 𝗙𝗹𝗼𝘄 (𝗦𝗶𝗺𝗽𝗹𝗶𝗳𝗶𝗲𝗱) 𝗔𝘂𝘁𝗵𝗼𝗿𝗶𝘇𝗮𝘁𝗶𝗼𝗻 → 𝗖𝗹𝗲𝗮𝗿𝗶𝗻𝗴 → 𝗦𝗲𝘁𝘁𝗹𝗲𝗺𝗲𝗻𝘁 ⏱️ Authorization: real-time (~2 seconds) 📦 Clearing: batch, end of day 💸 Settlement: T+1 / T+2 Approved ≠ settled — timing matters. 💰 𝗪𝗵𝗼 𝗘𝗮𝗿𝗻𝘀 𝗪𝗵𝗮𝘁? A typical $100 card transaction: 🔹 Merchant pays MDR (~2–3%) 🔹 Issuer earns the largest share (interchange) 🔹 Acquirer & network take smaller, fixed slices ➡️ Economics explain why issuers dominate cards — and why A2A keeps growing. 🧩 𝗗𝗶𝗴𝗶𝘁𝗮𝗹 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀 & 𝗕𝗮𝗻𝗸𝗶𝗻𝗴 𝗘𝗻𝗮𝗯𝗹𝗲𝗿𝘀 Between processing, acquiring, and issuing sits another critical layer — enablers. Not replacing banks, networks, or processors. But connecting, orchestrating, and scaling them. 🔹 White-label issuing & processing 🔹 BIN sponsorship & compliance frameworks 🔹 Payment hubs & orchestration layers 🔹 API-driven connectivity across rails 🔹 Faster time-to-market for banks & fintechs ➡️ Enablers turn complex, regulated infrastructure into deployable platforms. 🧠 𝗧𝗵𝗲 𝗸𝗲𝘆 𝗶𝗻𝘀𝗶𝗴𝗵𝘁 Processing, acquiring, and issuing are not competitors. They are complementary layers of the same system. 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀 𝗮𝗿𝗲 𝗻𝗼𝘁 𝗮 𝗳𝗲𝗮𝘁𝘂𝗿𝗲. 𝗧𝗵𝗲𝘆 𝗮𝗿𝗲 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲. Design the layers right — and everything on top scales.

Payments have evolved from paper and plastic to APIs and orchestration - giving rise to a new breed of players that simplify the complexity and connect the dots behind the scenes. Here's how we got here. 𝟭. 𝗜𝗻 𝘁𝗵𝗲 𝗽𝗿𝗲-𝟭𝟵𝟵𝟬𝘀 𝗲𝗿𝗮, banks owned the entire payments value chain -acquiring, processing, settlement. Merchant onboarding was complex, and domestic clearing systems ruled. 𝟮. 𝗧𝗵𝗲 𝗿𝗶𝘀𝗲 𝗼𝗳 𝗲-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 in the late 1990s changed everything. Players like PayPal and Authorize made online payments possible, while banks began exiting the acquiring space or partnering with processors to keep up with demand. 𝟯. 𝗕𝗲𝘁𝘄𝗲𝗲𝗻 𝟮𝟬𝟬𝟬 𝗮𝗻𝗱 𝟮𝟬𝟭𝟬, specialized gateways and regional wallets began to scale, offering merchants greater flexibility and control. The launch of SEPA in Europe marked a push toward payment harmonization, while non-bank players started building infrastructure that bypassed traditional acquiring models altogether. 𝟰. 𝗧𝗵𝗲 𝘀𝗵𝗶𝗳𝘁 𝘁𝗼 𝗔𝗣𝗜-𝗱𝗿𝗶𝘃𝗲𝗻 𝗶𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 transformed payments from siloed systems into modular, developer-friendly tools. Merchant onboarding became faster, integrations simpler, and innovation more scalable. Open Banking regulations enabled direct access to bank data, while new credit models redefined consumer behavior. Payments evolved into a flexible, programmable layer of the digital economy. 𝟱. 𝗧𝗼𝗱𝗮𝘆, we’re in the age of seamless integration. Payments are embedded in everything - from ride-hailing apps to SuperApps. Real-time rails like SEPA Instant, UPI and PIX are live. CBDCs are in pilot. However, as payment ecosystems grow more fragmented - with new methods, regional schemes, compliance layers, and fraud risks -complexity has become a major bottleneck for merchants, fintechs, and even banks. Integrating multiple providers, maintaining uptime across systems, and ensuring regulatory compliance isn't just costly - it's unsustainable without the right foundation. This is where a new breed of infrastructure players like 𝗔𝗸𝘂𝗿𝗮𝘁𝗲𝗰𝗼 fit in - offering the tools to simplify complexity and still retain control. • 𝗪𝗵𝗶𝘁𝗲-𝗹𝗮𝗯𝗲𝗹 𝗽𝗮𝘆𝗺𝗲𝗻𝘁 𝗴𝗮𝘁𝗲𝘄𝗮𝘆𝘀 let banks, PSPs, and fintechs launch their own branded platforms fast - without building from scratch. • 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 𝗼𝗿𝗰𝗵𝗲𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 enables merchants to route transactions dynamically across multiple acquirers, reducing costs and failed payments while improving UX. • 𝗕𝗮𝗻𝗸𝘀 can embed API-driven acquiring services into their offerings without the burden of a full-scale tech overhaul. In a world where growth brings fragmentation, the real challenge isn’t enabling payments - it’s managing them. The advantage will lie with infrastructure that can unify complexity, adapt in real time, and scale across borders without adding friction. Opinions: my own, Graphic source: Akurateco Payment Hub Subscribe to my newsletter: https://lnkd.in/dkqhnxdg

In this episode of the Wrap Up Podcast, I’m joined by Matt Marcus, CEO, and Sam A., CTO of Modern Treasury. We break down how Modern Treasury evolved from an API-first bank payments platform into a full-stack, multi-rail infrastructure provider supporting ACH, wires, RTP, FedNow, and stablecoins under a single unified ledger. We discuss: - How Modern Treasury’s new integrated payments product enables companies to launch in days - Why compliance ownership is shifting back to infrastructure providers - The role of AI in engineering productivity, compliance workflows, and fraud detection - Lessons from Synapse and the importance of immutable, double-entry ledgers - What companies must assess when choosing an infrastructure partner - Why instant, cheap, and usable payments will define the next decade This conversation goes deep into payment stack architecture, embedded finance evolution, stablecoin integration, and what the future of money movement actually looks like at scale. If you operate in fintech, treasury, embedded finance, or payments infrastructure, this episode unpacks where the rails are heading — and what it takes to build on top of them.

The payments stack is quietly being rebuilt — and the latest move from Visa shows how fast that transformation is accelerating. Visa Intelligent Authorization is a new capability on the Visa Acceptance Platform that allows acquirers to modernize payment processing through a single API integration, capable of processing transactions across multiple card networks. On the surface, this looks like an infrastructure upgrade. But the implications for the payments ecosystem are far bigger. 1️⃣ Payments infrastructure is becoming “API-first.” Instead of banks or acquirers building and maintaining their own authorization stacks, they can plug into modular infrastructure through a single API. This significantly reduces the cost and complexity of modernization. 2️⃣ Orchestration is becoming the new battleground. As payment flows become more complex — with wallets, A2A, stablecoins and AI-driven commerce entering the mix — the ability to intelligently route and authorize transactions across networks will be a key differentiator. 3️⃣ Lower barriers for ecosystem innovation. Fintechs, PSPs and software platforms can integrate once and access multiple payment rails, accelerating innovation for merchants and enabling new commerce experiences without rebuilding core infrastructure. 4️⃣ Networks are evolving into platforms. Moves like this reinforce a broader trend: payment networks are no longer just processing transactions — they are becoming programmable infrastructure layers that others build on. For those of us working in payments, this shift is fascinating. The industry is moving from “card networks” to “payments platforms.” And when infrastructure becomes programmable, the real innovation happens at the edges — where fintechs, merchants, developers and partners build the next generation of commerce experiences. Exciting times ahead for the ecosystem! #payments #fintech #apis #digitalpayments #innovation https://lnkd.in/gXkpYQ2i

🚨 Final Recap: 𝟐𝟓 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞, 𝐎𝐫𝐜𝐡𝐞𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞 by DEUNA👇 Over the past two decades, the payments ecosystem has undergone three fundamental shifts: → From static, rigid infrastructure → To programmable orchestration → To real-time, reasoning intelligence This post brings the full transformation together in a single strategic framework. — 𝐏𝐚𝐫𝐭 1 — 2000s: 𝐓𝐡𝐞 𝐋𝐞𝐠𝐚𝐜𝐲 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐄𝐫𝐚 🔹 Characteristics: Merchants relied on single PSP setups, limited routing, and siloed data. Fraud was handled manually. Reconciliation was slow and error-prone. 🔹 Key Constraints: → No fallback logic or retry mechanisms → No fraud orchestration or dynamic controls → Data scattered across PSPs, acquirers, and tools 🔹 Business Impact: → Failed transactions = lost revenue → Limited visibility into payment performance → No ability to optimize or adapt in real time ➡️ Payments were operational—but not strategic. — 𝐏𝐚𝐫𝐭 2 — 2010s: 𝐓𝐡𝐞 𝐎𝐫𝐜𝐡𝐞𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 𝐋𝐚𝐲𝐞𝐫 𝐄𝐦𝐞𝐫𝐠𝐞𝐬 🔹 The Evolution: The rise of payment orchestration decoupled logic from providers, enabling intelligent routing, backup PSPs, tokenization, and unified reporting. 🔹 Technical Capabilities Introduced: → Routing engines (BIN, amount, geography) → Automated transaction recovery → Real-time fraud controls and smart 3DS → Centralized reconciliation and compliance → Token vaulting and PSP abstraction 🔹 Strategic Benefits: ✅ Increased approval rates ✅ Improved cost efficiency ✅ Faster market expansion ✅ Better governance and reporting ➡️ Payments became a modular, resilient system for growth. — 𝐏𝐚𝐫𝐭 3 — 2020s: 𝐓𝐡𝐞 𝐀𝐠𝐞 𝐨𝐟 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞 🔹 The Shift: We are now entering a phase where payments infrastructure doesn’t just execute—it reasons. 🔹 Why This Matters: Despite orchestration, over $300B is lost annually due to missed opportunities, fragmented data, and reactive operations. 🔹 What Defines Agentic Payments Intelligence: 1️⃣ Unified, intelligent data layer → Structures commerce, payments, fraud, and behavioral data into a single, actionable foundation. 2️⃣ Context-aware reasoning engine → Detects issues, trends, and opportunities based on business context—not static rules. 3️⃣ Real-time execution framework → Automates action: retry logic, provider switching, checkout optimization, and more. ➡️ Payments now serve as a strategic decisioning engine—not just infrastructure. — The future of commerce will belong to those who evolve with the stack. From infrastructure → to orchestration → to intelligence. Source: DEUNA ► Subscribe to 𝐓𝐡𝐞 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬 𝐁𝐫𝐞𝐰𝐬: https://lnkd.in/g5cDhnjC ► Connecting the dots in payments... | Marcel van Oost

There is a debate happening in PE boardrooms right now about what makes a B2B payments business defensible. After a decade of building one, I think most of the conventional wisdom gets it wrong. The standard playbook is direct sales. Build a team, acquire customers one at a time, grow by adding logos. It works, but it has a ceiling. CAC rises, churn creates a treadmill, and growth stays linearly tied to headcount. At Finexio, we made a different bet. Instead of selling to end customers, we embedded our payments infrastructure into the AP and procurement software platforms that already owned the workflow. Their customers became ours without us acquiring them individually. Five lessons from building this way: 1. The best distribution is someone else’s product. When payments are embedded inside the software a customer already uses, adoption is a feature activation, not a sales cycle. CAC per customer drops to near zero. 2. Channel revenue compounds. A single platform partnership signed three years ago still generates new payment volume today with no incremental sales effort. That is geometric growth, not linear. 3. Retention is structural, not contractual. When your infrastructure is woven into a platform’s product, switching costs are technical, operational, and reputational. It holds under pressure. I have seen it tested. 4. You have to earn the right to be infrastructure. Platforms do not hand over their payments experience unless they trust you with their customers, their data, and their uptime. Earning that takes years of execution, not a pitch deck. The barrier is operational credibility, not technology. 5. The market is still massive and early. The majority of B2B payments in the US are still made by paper check. Trillions of dollars moving through manual, insecure processes. The technology exists. The problem has been delivering it in a way that fits how companies actually operate. If you are evaluating B2B payments businesses, I would encourage you to look past top-line volume and ask how it was acquired, how it retains, and whether the model compounds or requires constant reinvestment. I have been building in this space across EY, Mastercard, Change Healthcare, and Finexio, and I am more convicted than ever that embedded, channel-driven payments infrastructure is where durable value gets created. Happy to connect with anyone thinking about these dynamics, whether you are building, investing, or evaluating opportunities in the space.

🚀 Launching Special Topics in Financial Physics - Part 1 After exploring the building blocks in my Financial Primitives series, I'm diving into advanced applications. Today: why payment infrastructure built for the 20th century is breaking under 21st century commerce. When most people think about payments, they see the $51T in retail transactions. But as Erin McCune highlighted in her Bain analysis (link in comments), beneath this lies a wholesale payments iceberg that's increasingly interconnected. The problem: "Switches for Niches" → "Switches Get Stitches" Payment infrastructure built for the 1970s (13,000 US banks, domestic commerce, 2-3 day settlement) now struggles with: ➡️ Proliferating payment methods (RTP, blockchain, BNPL, stablecoins) ➡️ Sequential processing of concatenated flows ➡️ Each participant building operational "beaver dams" for reconciliation ➡️ $200-350B annual "waste heat" from trapped liquidity and overhead Two powerful trends create a generational opportunity to drill through the mountains that are becoming increasingly hard to build around: ➡️ Bank consolidation: 13,000 → 4,000 US banks; top 10 card issuers = 80% of volume ➡️ Commerce concentration: Global enterprises, Global Platforms like Shopify aggregate millions of merchants This dual concentration, together with new technologies, means a small number of strategic partnerships could optimize a huge portion of global commerce flows. As Jim Barksdale reportedly said: "Only two ways to make money: bundle or unbundle." Payments spent decades unbundling. Now there's a chance to rebundle for: 🌍 Global enterprises with complex treasury operations 🌍 Global platforms managing millions of merchants 🌍 "Default global" AI and hyperscaling startups The opportunity: $50-60T retail + 650T of adjacent B2B flows + pure B2B = $700T market by 2030. Companies controlling C2B transactions can increasingly extend into adjacent B2B flows and ultimately pure B2B. Coming up in the series: we'll explore technologies, tools and techniques that we can use to build new products and infrastructure for a new era of streaming financial services. #Fintech #PaymentSystems #FinancialInfrastructure #StreamingFinance #Innovation Link to full article: https://lnkd.in/e2CXYmyf

It feels like three things are happening in payments simultaneously. Most people are tracking one. Here's why that intersection is what matters. 🤖 Agentic payments are becoming real infrastructure Europe's first AI-agent bank payments; live, regulated, no human in the loop transactions, are already settling. Visa is onboarding European banks into its Agentic Ready framework. Coinbase has built the wallet infrastructure protocol x402 for autonomous AI agents. Agent-mediated purchasing could hit $1T in U.S. retail revenue by 2030 according to some experts. 🪙 Stablecoins as production-grade infrastructure $300B in market cap. Seven regulatory frameworks live globally. Visa stablecoin cards at 175M+ merchant locations. Banks using stables for settlement. Corporates using stables for treasury. The IMF calling them a reshaping force, and not a risk, shows us how it views the future payments system. 🌍 Global rails, finally getting the upgrade they need ISO 20022 migration completes by November 2026. Real-time A2A cross-border corridors going commercial. Fintechs are redrawing the competitive map in remittances by routing around correspondent networks entirely. Here's the quiet part that nobody is saying out loud: these three trends don't run in parallel. They compound. AI agents are autonomously initiating payments, while stablecoins are settling them across borders in seconds with programmable logic embedded in the transaction, and ISO 20022-structured data makes compliance machine-readable at the rail level. The result we arrive at is a payments system that is faster, cheaper, and more autonomous by an order of magnitude. We're not fully there yet. But the infrastructure decisions being made right now; like which rails to build on, which authorization frameworks to adopt, which stablecoin networks to integrate, will all determine who captures value in the system that emerges. The window to influence the architecture is open, but I'm afraid not for long. Some good reads on the topic: → Agentic AI in payments: what's real in 2026 https://lnkd.in/eRDr-3jh → Payments in 2026: trends shaping cross-border growth https://lnkd.in/eYFEGkDE → 5 cross-border payment trends maturing in 2026 https://lnkd.in/eH6EX6G7

The Next Chapter in Payments Infrastructure: Modern Treasury Acquires Beam One of the most strategically significant moves in the evolution of enterprise payments just happened: Modern Treasury has acquired Beam, a stablecoin infrastructure startup that’s been quietly pioneering interoperability between traditional fiat rails and programmable money. When Beam launched, its vision was ahead of its time .. to merge the speed, composability, and transparency of stablecoins with the trust, compliance, and reach of bank infrastructure. That vision is no longer theoretical. By joining forces, Modern Treasury and Beam are now positioned to create what the industry has been waiting for: A unified operating system for global money movement that spans ACH, wires, RTP, and stablecoins, all under a single, programmable layer. As someone who’s spent a career at the intersection of treasury, technology, and capital markets, this acquisition isn’t just about fintech consolidation, rather architecture. For the first time, we’re seeing a bridge emerge between the two worlds that have long defined the financial system: -The banking core that moves trillions daily through legacy rails -The blockchain layer that moves billions instantly through tokenized value And it’s happening at a moment when the timing couldn’t be better. Stablecoins are entering regulatory clarity. Banks are modernizing core systems. Treasury teams are demanding real-time visibility, liquidity orchestration, and global interoperability not five years from now, but today. This combination will enable enterprise clients to: -Execute instant pay-ins and payouts across both fiat and stablecoin rails -Optimize FX and working capital in real time -Manage liquidity and compliance through one trusted enterprise-grade API In short, Beam’s stablecoin infrastructure and Modern Treasury’s money-movement layer represent the blueprint for next-generation corporate treasury. Imagine move money via ACH, RTP, or USDC, where experience becomes identical …. fast, compliant, automated, and invisible. It’s a major step toward what many of us have envisioned: a world where money behaves like software, and where the boundaries between financial systems, currencies, and rails dissolve. Congratulations to the teams at Beam and Modern Treasury for taking a bold step toward building the financial fabric of the future. #Treasury #Fintech #Stablecoins #ModernTreasury #Beam #Liquidity #PaymentsInfrastructure #NexusTreasury #DigitalAssets #FutureOfFinance