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PSD2 Compliant Strong Customer Authentication

Single Device SCA

Single Device SCA

Technology approved by the Bureau of SRC, Germany

3rd Party Verified PSD2

3rd Party Verified PSD2

It's all in the handshake

How it works


Verification required action

The end user does something with your app that triggers a secure verification


Request roundtrip

From your app the request goes through the customer server and to the Okay secure server. The okay secure server talks directly to the integrated SDK in your app



The SDK confirms that the user signs what he sees with integration tests, honeypots, robot detection, 2FA, screen verification and other unique security mechanisms


The Okay

If all the mechanisms pass, the SDK sends the Okay back to your app. The end-user has their action securely and frictionlessly verified

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