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Smart contract security layer

Building a new layer of protections for smart contract security.
Real-time
Security audits are only one piece of the puzzle. Policies to verify and protect your contract in real-time.
Universal
Harness the best of both worlds, your deep protocol expertise and our latest security research, to configure the best policies for your protocol.
Actionable
Detection built to be simple, low false positive, and engineered for the future world of prevention.
Modular
Start with monitoring guards and simulation, grow into prevention and on-chain verification

Secure the next generation of the web

For web3 to get into the hands of mainstream users, there cannot be exploits that steal millions of dollars in a single transaction.
TVL
~ 120B+
lost to hacks
~ $4B+
hacks every
~ 1.3 days
Backed by
Open source
result: attacker can view all code
Open state
result: attacker can choose the right moment
Open entry
result: attacker doesn't need to authenticate
Open exit
result: attacker can hack in single transaction

defi

The Harshest Environment Code Can Ever Be Deployed In
  • Web3 attackers have all the advantages in their favor
  • Defenders need a security primitive that's capable of stopping the most advanced atomic hacks, to detect & prevent
enter guardrail
enter guardrail

How does it work

We combine your protocol expertise with our security research to tailor the best security policies for your project

Guards

Get the very best of offchain & onchain security techniques as verifiable policies: invariants, economic risks, anomalies

Monitor

With Guardrail as your security policy middlelayer, keep contracts simple and run security policies in real-time or in simulation

Prevent

Enforce your policies with prevention integration, proactively defending risky transactions rather than reacting after the fact

Get started

Monitoring
Run Guards in Real-Time and Simulation
from mainnets to rollups
supports shadow ABIs and cross-chain guards
try for free
Launch App
Prevention
Coming soon
Enforce Guard Policies Proactively
verifiable and trustless
non-disruptive to protocol functioning
integrate at different layers