Overview
Mesh Multisig is a free Cardano wallet built for groups: DAOs, teams, projects, or even just a couple managing a joint pot of crypto. The defining feature: every transaction needs multiple people to approve it before any money moves. Think of it like a joint bank account where two signatures are required to write a cheque1.
You set a rule when you create the wallet: "any 2 out of 3 signers must approve," or "all 4 of us must agree," or whatever works for your group. Until enough people have signed off, the transaction just sits in a queue. The wallet runs in your browser at multisig.meshjs.dev with no installation needed, and the code is open on GitHub for anyone to inspect or self-host2.
Key Features
- Customisable approval rules. Require all signers, any one signer, or a specific number out of the group, set when you create the wallet2.
- Add signers with a link. Invite people to your shared wallet by sharing a link. No manual key exchange or technical setup2.
- Vote in Cardano governance as a group. Register your shared wallet as a single Cardano governance representative (called a DRep), and vote on protocol decisions collectively through the same approval flow used for spending money2.
- A clear audit trail. Every pending and historical transaction is visible in one dashboard, showing who signed each one and what it was for, useful for teams that need transparency on shared spending2.
- Free, open-source, and built on Cardano's native tools. No subscription fees, so you only pay standard Cardano transaction fees. The code is public on GitHub for review or self-hosting, and uses Cardano's built-in scripting (called native scripts) rather than custom smart contracts, which keeps things simple and well-tested1.
What to Expect
Using Mesh Multisig feels like an online banking app built for teams. One person creates a wallet, sets the approval rule ("2 out of 3 must sign," for example), and shares a link with their teammates. Each teammate connects their own Cardano wallet to join. From then on, anyone in the group can propose a transaction (sending ADA, paying a contractor, voting on a Cardano proposal), and it shows up in a shared dashboard, waiting for the required number of approvals before it actually goes through.
For day-to-day team treasury management, Mesh Multisig also handles things like CSV imports and exports for batch payments, ADA Handle resolution (so you can send to "$alice" instead of a long address), and delegation to Cardano stake pools. For governance, the same shared wallet can vote on Cardano protocol decisions as a single representative, with each vote requiring the same group approval as any spending decision. A built-in chat lets signers discuss decisions inside the app.
Mesh Multisig is made by MeshJS, an open-source developer collective in the Cardano ecosystem best known for the Mesh SDK, a toolkit other Cardano projects use to build their own apps. The platform is actively maintained and free to use.
