Effortlessly create multi-user multisig wallets with your clients. Clients retain full control of their bitcoins, while you hold a backup key. Security and peace of mind rolled into one.

share custody via multisig wallets

Collaboratively sign transactions through a seamless user interface.

Converse privately with your clients anytime, anywhere. All directly within one app.

Byzantine uses cold storage for keys only and supports the industry’s best hardware signing devices. Get exclusive discounts from our trusted partners.

The best store of value deserves the best security money can buy

Ensure a minimal attack surface by leveraging our natively written application. We take no compromise when it comes to security.

Help clients pass on their bitcoins to loved ones via a robust timelocked inheritance plan.

plan your legacy

Nunchuk inheritance plan can work independently or within your client’s existing estate plan.

Help clients secure bitcoins and pass on wealth to future generations.