Services directory · Custody
Collaborative multisig custody, inheritance planning and bitcoin-backed loans — US-focused.
Unchained provides collaborative multisig custody for individuals and businesses in the US, along with inheritance planning, IRAs and bitcoin-backed lending built on the same key model. In a collaborative vault you hold most of the keys and Unchained holds one, so they can help you recover but can never move funds on their own.
It suits US holders who want institution-grade custody, tax-advantaged accounts or a loan against their stack without selling. The concentration on US regulation and services is both its strength and its limit — outside that market, a self-directed multisig setup or a provider like Casa or Nunchuk may fit better.
AnchorWatch
Insured Bitcoin custody using time-locked multisig (Trident) — keys stay distributed while the bitcoin carries real insurance. US.
Casa
Multisig self-custody with concierge support — keys stay yours, Casa helps you not lose them.
Nunchuk
Multisig wallet software with collaborative custody and inheritance features — open-source clients.
Theya
Mobile-first multisig self-custody — set up a 2-of-3 vault with your phone, a key partner and a backup, no desktop required.
Explore the rest of the stack: wallets, where to buy and places that take Bitcoin. Facts describe each service's core product and can change — always verify on the official site.