Choose a partner
In collaborative custody you still hold two of three keys — a Bitcoin service holds the third as a safety net for recovery and inheritance. They can never move your coins alone. What you outsource is complexity, not custody. Because we take no affiliate money, this page can compare them plainly.
Before anything else, ask: if this company vanished tomorrow, could you still recover your Bitcoin on your own? With a reputable partner the answer is yes — your two keys plus the wallet descriptor rebuild the wallet in open tools like Sparrow or Bitcoin Core. That "open-source recovery" badge is the difference between a helper and a dependency.
Badges — a fact about the service, not a ranking: ✓ meets it ~ partly / caveat ✗ no
2-of-3 assisted multisig (also 2-of-4 / 3-of-5) — you hold the keys, Nunchuk holds an assist key
Good fit: The most sovereignty-friendly option here — strictly no KYC, open-source (libnunchuk), the widest device support, and a genuinely free self-driven tier.
Watch out: Support is lighter-touch and more self-serve than Unchained or The Bitcoin Adviser — you drive more of the setup yourself.
2-of-3 collaborative multisig — you hold 2 keys, Unchained holds 1 recovery key
Good fit: The longest track record and best human support, plus a full Bitcoin-only financial stack (vaults, IRA, loans, inheritance) — the most hand-held of the DIY-adjacent options.
Watch out: US financial firm — KYC is required, so it’s the least private here, and support tiers add cost.
2-of-3 multisig — you hold 2 Jade keys, Swan holds 1 cloud key
Good fit: The cleanest guided 2-of-3 if you already buy through Swan — a downloadable recovery kit imports into open-source Specter or Bitcoin Core.
Watch out: Single-vendor hardware (Jade only), and the vault lives inside a KYC’d Swan exchange account even though the custody itself is non-custodial.
Collaborative 2-of-3 with an estate protocol — a professional key agent, built on Unchained / Nunchuk / bespoke
Good fit: The most high-touch for estate & inheritance planning across jurisdictions — hand-holding and documented, testable heir access are the whole point.
Watch out: A percentage-of-stack fee that’s the priciest structure here for large holders, and the details (incl. KYC) vary by the underlying platform they choose for you.
Insured miniscript multisig (Trident Vault) — you hold your keys, insured up to $100M
Good fit: The only genuinely insured option — real Lloyd’s of London cover on your holdings, while you still hold your own keys. Built for large holdings.
Watch out: Aimed at big stacks ($250k+ to be insured), KYC’d, and narrow device support. Uninsured vaults are still recoverable via Bitcoin Core.
Swipe sideways to see every column →
| Service | Model | No KYC | Open recovery | Insured | Fee | Minimum | Where |
|---|---|---|---|---|---|---|---|
| Nunchuk | 2-of-3 assisted multisig (also 2-of-4 / 3-of-5) — you hold the keys, Nunchuk holds an assist key | ✓ | ✓ | ✗ | Free DIY tier · Iron Hand $120/yr · Honey Badger $480/yr | None | Global |
| Unchained | 2-of-3 collaborative multisig — you hold 2 keys, Unchained holds 1 recovery key | ✗ | ✓ | ✗ | ~$250 per vault / year (concierge support extra) | None for a basic vault | US-focused (IRA is US-only; verify non-US) |
| Swan Vault | 2-of-3 multisig — you hold 2 Jade keys, Swan holds 1 cloud key | ~ | ✓ | ✗ | $30/mo up to $150k, then 0.02%/mo (capped $500/mo) · ~$319 device kit | None (private-wealth desk above ~$250k) | US-focused (verify non-US) |
| The Bitcoin Adviser | Collaborative 2-of-3 with an estate protocol — a professional key agent, built on Unchained / Nunchuk / bespoke | ~ | ✓ | ✗ | % of holdings, paid in sats: 1.00%/yr (yrs 1–4) → 0.75% → 0.50% (yr 9+) | None stated for advisory custody | Global (US, UK, EU, Australia, APAC) |
| AnchorWatch | Insured miniscript multisig (Trident Vault) — you hold your keys, insured up to $100M | ✗ | ✓ | ✓ | Custody $100–$1,000/mo by vault value · insured premium from ~0.4%/yr | Insurance from $250k of coverage (the high-minimum option) | Custody global; insurance for US customers |
✓ yes · ~ partial / caveat · ✗ no
Everything above is collaborative custody for savings — the fourth rung of the ladder, where you assemble a vault, hold two keys yourself, and a service holds the third. The service below is genuinely collaborative custody too — a real 2-of-3, with a real third party — but built around money you are spending rather than money you are locking away for a decade.
That is not a lesser thing, and it is not a warning. It is a different question, and mixing the two would make it look like a candidate for a job it is not applying for. We rate the hardware the same way on the wallet comparison — built for spending — and the two ratings are the same judgement, so the site refuses to build if they ever disagree.
2-of-3 — a phone app key + a hardware device you hold, plus a Block server recovery key
Good fit: The cheapest, simplest, no-KYC way into a 2-of-3 — recovery is built in (no seed phrase to lose), so it’s an especially good first collaborative setup for non-technical holders.
Worth knowing: A closed, single-vendor stack: the code is source-available but under a Commons-Clause licence (not fully open-source), and recovery leans on Block’s app rather than open multisig tools. As a device we rate it built for spending rather than cold storage, for the same reason — see how we rate hardware.
Holding long-term savings? Use the comparison above instead — a sealed single-vendor stack is a different bet from a vault you assemble and could rebuild yourself.
These sound alike and they are not the same arrangement. The difference is one question: whose hands are the keys in?
In collaborative custody — everything compared above — you hold two of the three keys. You can move your Bitcoin without asking anyone. The service holds one key, can never move your coins with it, and if the company disappears your two keys plus the wallet descriptor rebuild the wallet in open tools.
In multi-institution custody, the keys are distributed across several independent companies and you hold none of them. You authorise a transaction; institutions sign it. AnchorWatch — compared above for its Flagship vaults, where you do hold your own keys — also sells a Multi-Institution Custody vault: a 2-of-3 split across AnchorWatch, BitGo and CoinCorner, with no hardware wallet for you to set up or look after.
What that genuinely buys is real, and it is worth naming plainly: no single company can move your coins, so the failure that takes down an ordinary custodian — one firm collapsing, freezing withdrawals or being compromised — does not take your Bitcoin with it. Three independent institutions failing together is a much smaller risk than one failing alone. There is also no seed phrase you can lose, no device to keep safe, and nothing to hand your heirs but instructions.
What it costs is the thing this site exists to teach. Spreading counterparty risk across three companies is not the same as not having any — rule 01 still applies, because you cannot sign. Every path to your Bitcoin runs through someone else's willingness and ability to act, which is the dependency collaborative custody is arranged to remove. The independence rule asks for two independent things, and three regulated custodians sharing an industry, a jurisdiction and a legal climate are less independent than they look on a diagram.
Which is to say: multi-institution custody is a considered answer to a real problem, and it is a different answer from the one on this page. If what you want is fewer things to manage, it delivers that. If what you want is to be able to move your own Bitcoin without permission, it does not — and no amount of institutional quality changes that, because it isn't a quality question.
Running your own multisig (rung 3) keeps every key in your hands — no company, no KYC, maximum privacy. Collaborative custody trades a little of that sovereignty for far less to manage and built-in recovery. Neither is “more correct” — it’s a real trade-off. Not sure which fits? Find your setup →
Verify, don’t trust — including us. Fees and KYC policies change; we re-check them on a schedule and log every change in the what’s-changed log. Always confirm the current terms on the provider’s own site before committing.
✓ Last verified: August 6, 2026
