Catch threats before they become headlines
Real-time web3 security for onchain finance
Guardrail gives DeFi teams real-time visibility to catch issues continuously, prevent costly exploits, and protect what matters onchain.
Web3 security trusted by leading DeFi teams
Hear from protocols using Guardrail to stay secure.
"The number one security thing for us is ensuring that the transaction coming in is the exact same as the transaction coming out. You can set up guards for that quite easily with Guardrail. At the end of the day, if security is not there, all other features are useless."
Andy Bohutsky
Founder of Concero
"The number one security thing for us is ensuring that the transaction coming in is the exact same as the transaction coming out. You can set up guards for that quite easily with Guardrail. At the end of the day, if security is not there, all other features are useless."
Andy Bohutsky
Founder of Concero
"We don't have a security-focused engineer. Guardrail is our security engineer on the contract side. I was not sure that spending a couple thousand a month is a fair use of resources on something that's just monitoring your smart contract invariants... but then what got me in is we saw the roadmap of what this can be in the future. We cannot build out what you guys are building — the future of predictive threat detection. That's a very big deal to me."
Sehaj Singh
Founder
"The number one security thing for us is ensuring that the transaction coming in is the exact same as the transaction coming out. You can set up guards for that quite easily with Guardrail. At the end of the day, if security is not there, all other features are useless."
Andy Bohutsky
Founder of Concero
Backed by the best
$14.8B lost
to crypto exploits
21%
annual
increase
increase
In 2025, don’t be the next headline. Protect your protocol
with Guardrail.
with Guardrail.
The Cost of Crypto Hacks (2020–2024)
Estimated figures based on publicly available data.
DeFi Exploit Losses ($B)
Designed to secure your protocol, wherever and however you build
Smart contract security that sees what others miss.
your process
ecosystem
channels
system
risks
platform
From testing to audits to incident response, Guardrail adds continuous monitoring into every step.
Guardrail isn't just another tool. It's a security layer that listens, learns, and integrates with the systems you already trust.
Connected to your CI/CD, ops stack, and on-call systems, we move as fast as you do.
A real-time firewall for your protocol’s users, systems, and funds.
From economic risk to invariants, Guards are custom-fit to your protocol’s needs.
Guardrail executes checks per block, function, or event across testnet, app-chains, and mainnet.
We’re on guard, so you don’t have to be
Meet Guards — modular, real-time checks that verify transaction state transitions as they happen. With Guards, you can monitor, detect and prevent attacks before they escalate.
Setup guards customized to your protocol today.
180+
Contracts monitored
295+
Guards
$1.3B
Assets protected
<1s response time
Live across 24+ chains
End-to-End web3 security
Guardrail doesn’t just monitor your protocol, it acts on what it sees. From early detection to automated responses, it’s a full-stack defense system that protects your users, your treasury, and your reputation.
Watch every transaction
Track onchain transactions, offchain inputs, and protocol-specific behaviour across every chain in real-time.
Watch every transaction
Track onchain transactions, offchain inputs, and protocol-specific behaviour across every chain in real-time.
Watch every transaction
Track onchain transactions, offchain inputs, and protocol-specific behaviour across every chain in real-time.
Watch every transaction
Track onchain transactions, offchain inputs, and protocol-specific behaviour across every chain in real-time.
Who we protect
Guardrail is for those who can’t afford surprises as we bring real-time and protocol-aware security. Whether you're a regulated institution or a DeFi-native team, we bring context-aware security to your stack, from chains and smart contracts to users and ops.
Crypto Native
Runtime protection to secure smart contracts, wallets, bridges, and mempools with context-aware onchain monitoring.
Institutions
Enterprise-grade Web3 security to monitor transaction flows, detect financial threats, and meet compliance in real time.
Prevent headlines. Protect what matters.
