Cosigner
Secure your multisig/MPC wallet
Cosigner eliminates blind spots by providing instant transaction clarity, policy enforcement, and automated control — protecting you against malicious attacks and operational errors.
4.3B
transactions scanned350M
attacks prevented$193B
assets securedA trusted, independent transaction copilot
Cosigner prevents multisig and MPC wallet operators from malicious exploits or human error.
Seamless integration
Plugs into any multisig and MPC wallet
Plugs into any multisig and MPC wallet
Out-of-the-box support for all major providers.
Transaction simulation
See the full transaction flow in an interactive graph
See the full transaction flow in an interactive graph
Preview the onchain outcome of transactions before signing.
Customizable policy engine
Block high-risk transactions with precise controls
Block high-risk transactions with precise controls
Configure granular, label-based security policies, simplify the accountability and management of your operations.
Automated Workflows
Automate alerts and take real-time action
Automate alerts and take real-time action
Streamline workflows and take actions in real-time to secure transactions across your stack.
Network
Powered by the largest network of web3 interfaces
Blockaid is directly integrated with the most used web3 wallets and interfaces. Our system sees more data and is able to block more threats.
Battle-tested and proven at scale
Integrating Blockaid helped evolve and improve onchain security for our users. By supporting safety on Ethereum Mainnet as well 6+ other EVM chains such as Base, Optimism, and Polygon, we have been able to improve both UX and safety for Coinbase Wallet users. Getting security right is critical for bringing one billion people onchain.
Chintan Turakhia
Senior Director, Engineering at Coinbase
The quality of Blockaid's product is second to none. They have helped us detect and prevent scams and hacks from our users. The team's expertise in cybersecurity, with years of experience, has been evident in the results since the early stages of integration.
Andrey Balyasnikov
Head of Product at Zerion
Blockaid's real-time security alerts integrated within Core provide users with a proactive shield against emerging threats, empowering them to navigate the Avalanche ecosystem with confidence. Together, Blockaid and Core are not just securing transactions; they are paving the way for a safer, more resilient Web3 future.
Akash Gupta
Head of Consumer Products at Ava Labs
Validate every transaction and
never sign blindly again
