Buy the KeyNub USB-C License Dongle

One product, sold as a single unit. The KeyNub dongle is a USB-C hardware key that proves to your application that a license is genuine, using an ECDSA key pair generated inside a secure element that cannot export it. License records, monotonic counters and encrypted app data all live on the key itself, so verification needs no server, no account and no internet connection.

Volume pricing for OEM integration is available on request, and KeyNub is also offered as an OEM platform: your own enclosure and your own brand rather than ours. Orders ship from Munich, Germany.

The SDK is free, with bindings for over twenty languages. The bindings, the samples and the C ABI header are published under Apache-2.0, so you can read the whole integration path before you order any hardware; the prebuilt native libraries ship under their own binary licence terms.