Rory O'Reilly

We’re excited to announce that @KnotAPIs is now live with @CashApp.

The Cash App Card is one of the largest debit card programs in the United States. With Knot's CardSwitcher™, Cash App cardholders can instantly add their card across the merchants they use most, including Amazon, Apple, Walmart, Uber, and 100+ more, without ever leaving the app.

Cash App has always focused on creating intuitive financial experiences. Knot builds on that by driving activation and spend for Cash App, reducing churn and abandoned carts for merchants, and giving users a frictionless way to use their Cash App Card.

We’re proud to power an even more seamless Cash App Card experience and excited for what’s ahead. More to come.

.@stripe is clearly building a payments network, one move at a time, and it’s fascinating to watch.

Mastercard, Visa, and Amex still hold the strongest pieces: trust, buyer protection, and global acceptance.

But this will be a great match, and the battlegrounds being decided right now may determine the winner.

I couldn't be more excited to introduce Knot Zero.

Card-on-file switching usually starts with a roadmap slot, an SDK integration, and a mobile release cycle. For some issuers, planning and implementation are the biggest roadblocks before using Knot.

Knot Zero removes all of that.

With Knot Zero, issuers can launch Knot’s CardSwitcher from a link or QR code. No SDK. No app download. No backend card data integration required.

How it works:

1️⃣ Upload a spreadsheet in the Knot Dashboard or call our API
2️⃣ Get a unique short link for each cardholder
3️⃣ Send it however you already reach them: email, SMS, push, or a QR code on the card carrier
4️⃣ Cardholders verify with a one-time code, pick their merchants, and switch

That’s it. It works on iOS, Android, or desktop.

Where we’re seeing it fit:

→ Card activation: QR codes on carriers and in-branch, so top-of-wallet happens at day one
→ Marketing campaigns: reach your entire cardholder base through the channels you already use
→ Support: agents can send a link mid-call or mid-chat
→ A fast first step for teams that want results before committing to a full integration

Getting your card on file where people actually spend is the most important driver of top-of-wallet. Knot Zero means every issuer can start doing that this week, not next quarter.

Money2020 this year was unforgettable for @KnotAPIs, and I believe we'll look back on it as the inflection point for merchant connectivity.

Two months ago, "merchant connectivity" was a niche concept: connecting users to their merchant accounts, keeping those connections alive, and, with their permission, taking action on their behalf.

Now everyone needs a merchant connectivity strategy, and Knot's need is growing rapidly. The stakes are bigger, and the penalty for not owning the merchant connection is massive.

Here's why it suddenly matters:

Banks risk becoming a commodity if they don't own the relationship between their customers and merchants. Personal agentic apps (Muse, Instinct, and the dozen more coming) want that seat. Outsource it, and disintermediation is a matter of time. First they get the eyeballs. Then they get the money. Suddenly, you're trying to hold onto a customer who's getting more personalized service elsewhere and can switch at any time.

Networks risk losing for the same reason. If someone else holds the connection between the user and the merchant accounts, you've handed Stripe and everyone like them a new front to compete on. It now becomes frictionless to switch from card -> pay by bank, stablecoins, etc.

Whoever owns the connections owns the future.

Some people on the floor think the frontier is browser automation: an agent clicking through a website like a person would. It isn't. The real frontier is turning browser automation into deterministic APIs. Same call, same result, every time, securely, at scale. It’s the less glamorous work behind more than 1 million actions Knot powers every day.

Which brings me to Supernova, which is the tool we built internally to ship every merchant integration we have. In the past week, we've had requests from some of the largest companies in the world and some of the smallest, across industries well outside fintech. Use cases I would not have guessed. I couldn’t be more excited to pull more people off the waitlist and see what they build, which, right now, is a lot of agentic shopping on industry-specific sites.

Shoutout to our friends for always making this week so special. See you next year. A lot to show you before then!

I couldn't be more excited to announce Supernova by @KnotAPIs.

For years, we've poured our hearts and souls into building the technology behind Knot.

Today, it powers more than 1 million actions every day for some of the largest financial institutions in the world.

Now, we're putting that same technology in your hands: Supernova turns virtually any action on any website into an API.

Tell Supernova what you want to do and Supernova, if needed, uses a VM to learn the action once, then turns it into a reusable API. Frictionless authentication, persistent connections, health checks, self-healing, and ongoing maintenance? All handled by Supernova.

The result: An API you can call over and over, without spinning up a browser every time.

Think about what this unlocks:

🛒 Commerce: Build APIs to search, shop, and purchase across retailers.
🏦 Financial services: Connect accounts, retrieve transactions, and manage payments.
🚀 Entrepreneurs: Build the next Finicity/Plaid/MX for procurement, Stripe for returns, or an entirely new API business.

Everything we've built at Knot is proof of what's possible. But our products are just a handful of ideas from one team.

Our ambition isn't just to build the next great Knot product. It's to help you build tens of thousands of your own, including things we never would have imagined.

We're opening the Supernova waitlist to developers, and we can't wait to see what you build.

Sign up for the waitlist below👇

knotapi.com/supernova/