Latest / Startup Stories with Fexingo: Conversations About Founders, Funding, and Building Companies from Zero / How Stripe Built the Financial Plumbing of the Internet
Transcript
- Lucas: So it's August 2026, and Stripe just hit a valuation that puts it among the most valuable private companies on the planet. But here's what's wild — most people can't name a single thing they do. Luna: Right, because they're the ones powering the checkout button on basically every site you've ever bought something from. Lucas: Exactly. And that's the story I want to dig into today. Not the valuation, not the hype — but how two brothers from Ireland built the financial plumbing that the internet runs on. Luna: And why they chose to be the boring infrastructure rather than the flashy app. Lucas: Right. So let's go back to 2010. Patrick and John Collison are in their early twenties, both MIT dropouts, and they're building a mobile commerce app. But every time they try to process a payment, they hit this wall — the existing payment companies are clunky, slow, and built for big businesses, not for developers. Luna: So they built a solution for themselves, which is how so many great startups start. Lucas: Exactly. They wrote a few lines of code that made it easy to accept a card online, and realized other developers would want that too. So they pivoted from the app to the payment tool. Luna: And the key insight was that developers were the new decision-makers in business. The people choosing the software stack were engineers, not purchasing managers. Lucas: That's the part that most people miss. Stripe didn't sell to companies — they sold to the developers inside those companies. Their pitch was seven lines of code, and you could accept a credit card. That was unheard of in 2011. Luna: Seven lines of code. That's the hook that got every engineer's attention. Lucas: And because developers loved it, they recommended it to their bosses. Stripe grew by word of mouth inside organizations. No sales team, no cold calls — just a product that was genuinely better. Luna: It's like the developer version of 'if you build it, they will come.' But they still had to solve the hard problem of regulation and banking relationships. Lucas: Right, and that's where the Collisons got strategic. They didn't try to become a bank themselves. They partnered with banks and payment networks, and focused on the software layer on top. Luna: Which is actually a really smart move, because it let them move fast while the banks handled compliance and risk. Lucas: And that's been the model ever since. Stripe processes hundreds of billions of dollars a year, but you never see their name on your statement — it's hidden behind the merchant's name. Luna: So they're the silent partner in every transaction. And that's probably why most people don't know them, even though they're everywhere. Lucas: Now, what's interesting is how Stripe kept growing past the initial developer crowd. They looked at the rise of platforms like Shopify, DoorDash, and Lyft — companies that needed to pay out their sellers or drivers — and they built Stripe Connect to handle those payouts. Luna: That was a huge unlock. Suddenly Stripe wasn't just for the business itself, but for the whole marketplace ecosystem. Lucas: And that's the part that makes this story really relevant to anyone building today. Stripe's moat isn't just their code — it's that they've become the system of record for millions of businesses. Once you're on Stripe, switching is a pain, so they've got this incredible lock-in. Luna: Speaking of pain, let's talk about the price. Stripe charges a cut of every transaction — around two point nine percent plus thirty cents for standard cards. That's a toll booth on the internet. Lucas: Yeah, and that's why they're so profitable in the long run. Their margins are high, they don't carry inventory, they don't have physical branches. It's pure software scale. Luna: And that's something I think about with this show a lot — we're lucky to have a business podcast that dives into these mechanics without ads. If you're a regular listener and these stories have helped you think about your own work or your own startup, you can keep us going at buy me a coffee dot com slash fexingo. It's a small way to support what we do. Lucas: Appreciate that, Luna. And it really does help. Now, back to Stripe — one thing that always struck me is how they handle the enterprise shift. They started with small developers, but now they're going after the big banks and the Fortune 500. Luna: Right, because the pie of small developers is finite. To keep growing, they had to move upmarket. Lucas: And they did it by building these modular products — Treasury for banking as a service, Capital for small business loans, and Radar for fraud detection. They're not just a payments company anymore, they're like a full financial operating system. Luna: So what does that mean for the next ten years? Is Stripe going to become a bank themselves, or keep partnering? Lucas: I think they're going to keep playing the infrastructure game. They've said publicly that they want to be the platform for online commerce, not a lender or a bank. But they're also diving into AI payments, which could be a whole new wave. Luna: Because AI agents are going to need to transact online, and someone has to build the payment rails for them. Lucas: Exactly. And they're positioning themselves for that with their api first approach. If a bot is going to book a hotel or buy groceries, it needs a way to pay — and Stripe wants to be that way. Luna: So the eight hundred pound gorilla of payments is now betting on the machines. Lucas: But there are risks. There's a lot of competition — Adyen, Checkout.com, and more recently, some of the big tech companies are building their own payment stacks. And regulation could tighten if they get too big. Luna: And they had that big valuation drop in 2022, from ninety-five billion down to fifty billion, which shows even the giants aren't immune to market sentiment. Lucas: Right, but they've since recovered and then some. In 2026, they're back above a hundred billion, and they're profitable, which is rare for a company that size. Luna: So the lesson for founders is that being the boring infrastructure can be hugely valuable, but you have to keep innovating on top of it. Lucas: Exactly. The payments layer is the foundation, but the real growth is in the products you build around it. That's how you turn a utility into a platform. Luna: And that's the story of Stripe in a nutshell — start with a developer pain point, build a product they love, and then expand into the whole ecosystem. Lucas: And it's a reminder that you don't need to be the face of the transaction to own the value. Stripe is invisible, but it's essential. I think that's a great lesson for any entrepreneur listening. Luna: Absolutely. So next time you tap pay on your phone, you'll know who's really behind it. Lucas: And that's the kind of knowledge that makes you dangerous in a good way. Thanks for hanging out with us.