Nunchuk
Bitcoin Only
Established Est. 2020
Vietnam
21Rates Quality Score: 62.0/10
Nunchuk is a privacy-focused, open-source Bitcoin multisig wallet and custody solution offering collaborative 2-of-3 vaults, inheritance planning, and hardware compatibility without KYC.
Custody Model
ModelSelf Custody
LicensesNot applicable (non-custodial, open-source)
RegulatorySelf-custody — user responsible for compliance
JurisdictionGlobal (non-custodial, no jurisdiction requirement)
Fees & Minimums
Fee StructureFree tier available. Individual: $10/mo. Premium: $20.83/mo. Honey Badger (collaborative): $40.83/mo.
WithdrawalsNone (user-controlled)
Security
Cold Storage100% cold storage (user-controlled)
InsuranceNo custodial insurance (self-custody)
Proof of Reservesfalse
Asset SegregationYes (user holds own keys)
Multi-Sig Supported
AuditsOpen-source code, community-reviewed
Features
API Access Not available
Mobile App Yes
Hardware Wallet Not supported
Institutional Available
Integrated Trading Yes
AssetsBTC only
Frequently Asked Questions About Nunchuk
About this analysis
21Rates Editorial TeamBitcoin Financial Research Analysts
Our research team analyses Bitcoin custody providers using proprietary quality scoring, regulatory research, and user reviews. We independently verify custody terms and maintain up-to-date information to help you make informed decisions.
Last verified: July 2026