Swan's Sandbox is open. It's time to build.

Swan’s sandbox, which gives entrepreneurs and developers easy access to embedded banking, is open to the EU public!

Sarah Wachter & Pico Petershagen
November 5, 2021

Swan prizes builders

"It's time to build." This now-iconic phrase was coined by Marc Andreessen during early Covid days, while the entire world was struggling more than it had in a long time. This notion resonates strongly here at Swan, where a Builders' mentality is a core value. Even more, it's a part of our mission: we aim to empower builders to build banking features into their product - without anything holding them back.

The right tools spur innovation

A proven way to unleash creativity is by giving people tools, the launch of AWS being an iconic example. Without AWS, launching a new software project started with a visit to the hardware shop to purchase servers (or you'd order the materials online and wait around for the delivery)...With AWS, the launch of a new software product starts in the middle of the night by anyone with a new idea.

Do you know what's far more tedious than going to a hardware shop? Building banking products into your software. Without external support, it can take years of time while burning through plenty of cash (trust us, we've been through it). Certainly, there are other existing solutions out there - but in our opinion, they aren't much better than visiting the metaphorical hardware shop. You still have to hire experts, schedule meetings, and wait for access provisioning...

Since our early days at eFounders, our dream has been to remove all these barriers and create an AWS-esque moment for financial services. It's our entire "raison d'être" - to open up access to banking features. Well, now we've made it happen!

Are you currently building or want to build? Raising funds and need to demonstrate a compelling, market-ready product? Maybe you're thinking about embedding finance, but the whole idea just seems so theoretical and abstract and you have no idea where to begin.

Now you can just visit our sandbox by clicking here. Jump right in and discover for yourself what your product would look like with banking features. (You'll have to go through a simple identity verification process, and then you're in!)

Swan's Sandbox is open!

Create a working POC in minutes ⏱

Once you're in the sandbox, you can upload your company's logo, create accounts, issue cards, integrate webhooks, and simulate the reception of a transfer — all within just minutes. After that, you're completely autonomous to play with our Graph QL API and discover functionalities on your own (we launch new features every 3 weeks, all year round!), guiding yourself with our helpful documentation in hand. The event simulator lets you simulate everything: SEPA Credit Transfers, SEPA Direct Debits, Cards, and more:

Invite anyone you want to join you 🤝

Test your hypothesis from end to end, at your own pace, with your own people. You'll be able to create demo accounts with fake money that work just like in real life.

Don't pay a dime until you go live 😎

Testing and exploring in the sandbox is free. You only pay once your integration is rock-solid and you choose to activate. Swan will perform a review, much like Apple does before publishing an app, to ensure everything is in line with regulations.

It's time to build

To get started, just visit and click "Start now". In the sandbox, no one can tell you "no" or hold you back. We give you the building blocks – you decide what to do with them.


Nothing in life is perfect: we still have to run a mandatory KYC (Know-Your-Customer) on you when you launch in the sandbox. As a regulated financial institution, we're obligated to know who we're working with. So, we make sure we know who you are and that what you want to do with Swan is not shady. If you're really who you say, we make sure you can get started in just hours. You get 100% functional transparency right away.

Sarah Wachter & Pico Petershagen
November 5, 2021
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