Overview
Mesh Multisig is a free, open-source multi-signature wallet for Cardano teams, built by the MeshJS developer collective1. It allows DAOs, projects, and organizations to manage shared treasuries and participate in on-chain governance through M-of-N signing workflows, where multiple approvals are required before any transaction reaches the chain2. The platform is aimed at groups that need accountable, collaborative control of ADA and native assets.
Transactions are secured by Cardano native scripts rather than custom smart contracts, which keeps the signing model close to the protocol and avoids introducing additional contract risk1. The interface runs as a hosted web application at multisig.meshjs.dev, and the full source is published on GitHub for self-hosting or independent review.
Key Features
- Flexible M-of-N thresholds. Wallet creators can require all signers, any single signer, or a specific quorum to approve transactions, configured per wallet2.
- Invite-by-link onboarding. Signers are added to a wallet by sharing a link, removing the need for manual key exchange during setup2.
- Collective DRep governance. Teams can register as a single Delegated Representative and vote on Cardano governance proposals through the same multi-signature flow used for treasury operations2.
- Unified transaction view. Pending and historical transactions appear in a single dashboard showing who signed each one and its stated purpose, supporting audit trails for team spending2.
- Mesh SDK foundation. The platform is built on the Mesh SDK, the same Cardano developer toolkit maintained by the MeshJS team, which handles native script generation and UTxO assembly1.
What to Expect
Using Mesh Multisig resembles a team banking interface layered over Cardano. One member creates a wallet, sets the signing threshold, and shares an invite link with collaborators. Proposed transactions sit in a pending queue until the required number of signers approve, at which point the platform assembles and submits the transaction to the network.
Treasury managers get CSV import and export for batch payments, ADA Handle resolution for recipient addresses, and delegation and reward withdrawal tools for stake management. Governance participants see active Cardano proposals inside the app and can cast votes as a team DRep without leaving the interface. An in-app chat lets signers coordinate on transaction context and voting decisions.
Because Mesh Multisig is open-source and runs on native scripts, technical teams can self-host the platform or inspect the code directly on GitHub1. No independent security audit has been identified for the hosted deployment, so teams managing significant treasuries should review the repository and signing logic before committing large balances. The project is actively maintained and sits within the broader wallets category on Cardano.
