Ship faster with the security of OpenZeppelin Defender
Automate smart contract operations to deliver high-quality products with lower risk – now available with an expanded set of features.

TRUSTED BY TOP TEAMS IN THE SPACE
The first secure operations platform for smart contracts
Automate and secure all your smart contract administration
Build with private and secure transaction infrastructure
Don’t spend time implementing third-party or homegrown transaction infrastructure that is unreliable or insecure. Use Defender Relay to quickly implement private relayers with support for testnets, mainnet, layer 2 and sidechains. Increase user security with embedded key vaults, API key management, and meta-transactions.
Create automated scripts to call your smart contracts
Monitor and respond to smart contract exploits
Use Defender Sentinels to automatically monitor and respond to events, functions, and transaction parameters on your smart contracts. With full Autotask integration, you can add circuit breakers or automated actions so your team can respond to attacks within seconds and receive notifications via email, Slack, Telegram, or Discord.
Quickly implement security best practices
Developers love OpenZeppelin Defender


Start using OpenZeppelin Defender
Web3 Teams
- All supported L1s, L2s, and sidechains
- 20 users per team
- 30 contracts managed by Admin
- 5 relayers and up to 120 TXs/hour
- 20 autotasks and up to 120 runs/hour
- 20 sentinels
- Support through our community forum