Shared vaults · Free to open

Bitcoin on
your terms.

Open a shared vault in three steps.

  • Native multisig without the complexity or the cost
  • Protect yourself from key loss or compromise
  • Set up approval workflows with the people you choose
  • No lock-in — a fully transferable native spec
Get started in minutes Always keys you control
We never see your keys. Convenience and security — you pick.
How a vault works →
Assessed byHalborn Ecosystem architecture assessment · June 2026
Cobault app — new shared vault: co-owners and signatures required
Cobault app — sign up or sign in with Cobault Self Custody, web wallet, or hardware wallet
Open in three steps
1

Decide participants and quorum

2

Invite participants

3

Everyone consents and validates

Live
2 of 3 · P2WSH Fully chain-native — download your vault spec and use it anywhere. Recoverable without Cobault, forever.

Always your coins

Every vault is its own Bitcoin address. Never wrapped, bridged, or pooled.

Spends need your quorum

Only the participants you chose can move funds — on the quorum and terms fixed when the vault opened.

No Cobault key in your vault

Policy vaults (coming soon) will add a verifier key we operate; it co-signs only spends matching your rules, and your quorum always has control.

Products

Shared vaults are live today.

Everything Cobault builds runs on the same non-custodial multisig vault. Our vision is to enable licensed partners to offer wealth strategies through it. No such product is currently offered. We hope to share more very soon.

Live now Shared vaults

Hold Bitcoin with others

Split keys across a partner, your family, or your business — and remove any single point of failure in how your Bitcoin is held.

Peer-to-peer shared vaults

Invite a quorum of participants — we provide a convenient interface for native BTC vault setup. Or create a vault with two or more keys you control yourself, protecting against compromise or loss of any one key.

§

Policy vaults Coming soon after launch

In addition to invited participants, select an approve-list and spend-limit policy to stand in for one member of your quorum for convenience. Your user quorum always has control.

Built-in recovery

Lose a key and the remaining participants can restore access, subject to your quorum.

Our vision Wealth strategies

Wealth strategies from licensed partners

We plan to work with licensed third parties, enabling them to offer Bitcoin wealth and asset-management strategies through the Cobault multisig vault system. No such product is available today, and nothing on this page is an offer of yield, a rate, or a return.

To find out more, join our mailing list. We’ll share more as we build.

How it works

Open a vault in minutes.

Bring a key

Ledger, web wallet by MetaMask (Web3Auth), or our browser key agent. Your key is generated and held on your side — Cobault's backend never sees private key material.

Open a vault

Choose your collaborators and your quorum. Once every participant has accepted, the vault is sealed and its address is fixed — a native Bitcoin multisig, visible on-chain from day one.

Operate and withdraw

One participant proposes a spend; the others review and sign. When your quorum is met, the transaction broadcasts to the Bitcoin network. In a policy vault (coming soon), the verifier co-signs only within your rules.

Why Cobault

How Cobault compares with other multisig options

Multisig is the right way to hold Bitcoin with others. Until now the choice has been between expert desktop tooling you coordinate yourself and managed subscriptions where the provider holds a key. Cobault builds the coordination in — and in a standard vault holds no key at all.

CobaultExpert toolingPaid subscriptions
Price
P2P vaults free · policy vaults free at launch
Free, open-source softwareUS$100s–$1,000s per year
Setting up and coordinating
Guided in the browser — invite by email, propose, sign, track
Manual — descriptors, PSBT files or QR codes passed between signersManaged via the provider's app and support staff
Choose your own participants
Any people you choose, your own n-of-m
Possible, self-configuredBuilt around your devices plus the provider's key; sharing on higher tiers
Keys held by the provider
None in a P2P vault
Policy vaults (coming soon) add a verifier key we operate
NoneProvider holds a key in every vault
Policy enforcement
Coming soon — optional spend limits and approve-lists, checked before co-signing
None — quorum onlyAddress allowlisting on paid tiers
If the provider disappears
Exportable vault specification; spend with standard tooling
No provider — runs locally on open standardsVaries — recovery with your own keys where the provider documents it
FocusBitcoin only, native on-chainBitcoin onlyOften multi-asset

Comparison as at August 2026, based on the published materials of representative providers in each category.

For institutions

Managing significant Bitcoin holdings?

We will work with family offices, corporate treasuries, and funds to structure multisig positions at scale — shared custody across the participants you choose, with policy vaults (coming soon) adding spending limits and approve-listed destinations enforced in the vault itself.

Talk to us
wrap.cobault.io — shared vaults
Cobault app — shared vaults list
The team

The founders

Backgrounds across financial markets, tier-one banking infrastructure, and digital assets.

Jim Turley

Jim Turley

CEO

Decades across financial services and digital-asset leadership.

Rashid Hoosenally

Rashid Hoosenally

Head of Products

Structuring products for sophisticated investors across cycles.

Richard McLaren

Richard McLaren

CTO / COO

Tier-one banking systems; builds the infrastructure the vaults run on.

Pedram Parhizkari

Pedram Parhizkari

Chief Strategy Officer

The intersection of institutional finance and emerging technology.

FAQs

Frequently asked questions

Who holds my Bitcoin?

You and the participants you choose. Every vault is a native Bitcoin multisig; each participant's key is generated in their own browser from a seed phrase only they hold. In a standard shared vault Cobault holds no key and cannot move your Bitcoin under any circumstances. In an optional policy vault (coming soon after launch), a verifier service we operate will hold one key in a secure enclave and co-sign only spends that match your policy.

What happens if I lose my seed phrase?

It is unrecoverable — by Cobault, and by the other participants. Depending on your quorum, one lost key can permanently freeze the vault for everyone in it. Back up your seed phrase before you deposit anything.

Can other participants spend without me?

If the quorum you configured can be met without your key, yes. That is how multisignature works: choose your participants and your quorum accordingly.

What happens if Cobault disappears?

Your vault is an on-chain Bitcoin multisig, and you can export a vault specification containing everything needed to reconstruct and spend it with standard Bitcoin tooling. If we disappear, your Bitcoin does not.

Is vault activity private?

No. The vault address, quorum, deposits, spends, and which participants signed are recorded on the Bitcoin blockchain — public and permanent. Within a vault, participants see each other's display names, invitation email addresses, and public keys.

What about yield?

Our vision is to work with licensed third parties, enabling them to offer Bitcoin wealth and asset-management strategies through the Cobault multisig vault system. No such product is available today, and nothing on this site is an offer of yield, a rate, or a return. To find out more, join our mailing list. We’ll share more as we build.

What do I need to start?

A Ledger, web wallet by MetaMask (Web3Auth), or our browser key agent, which generates and holds your key locally. Back up your seed phrase before depositing.

Who operates Cobault?

Cobault is operated by Bluemetal Services Pty Ltd (ACN 701 330 627), an Australian company and wholly owned subsidiary of Chain Capital Technologies Ltd (England and Wales). Bluemetal builds and runs the platform; it holds no customer Bitcoin.

Is Cobault regulated?

Bluemetal Services Pty Ltd is not licensed as a financial services provider and does not provide financial product advice. Cobault is software for coordinating Bitcoin multisignature wallets: we do not take custody, we do not exchange Bitcoin, and we offer no investment, yield or return. Nothing on this site takes account of your objectives, financial situation or needs.

Why is Cobault only available in some countries?

We are live in Australia, Singapore, Hong Kong, the United Kingdom and the European Union, and we would rather open a country properly than quickly. Even the little we hold — your email address, and what you tell us when you set up a vault — carries obligations that differ from one country to the next, and we would rather meet them in full in a few places than loosely in many. Our vision is also to work with licensed partners, and that only works if we are disciplined about each geography from the start. We will add countries as we can do it properly. To hear when we do, join our mailing list.

What is the difference between cobault.net and cobault.io?

Both bring you here. cobault.net and cobault.io serve the same company page: who we are, how the architecture works, and why. wrap.cobault.io is the app itself, where you create and use a vault.

Keep in touch

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We’ll email occasional updates about the company. No product is offered today, and nothing on this site is an offer of yield, a rate, or a return. You can unsubscribe at any time. See our Privacy Policy.