

OpenZeppelin supports developers on OP Mainnet with audited libraries, upgrade plugins, and open-source tools that simplify contract deployment, reduce risk, and power applications designed for low fees and fast execution on Ethereum’s optimistic rollup.
A suite of audited contracts and utilities for OP Mainnet. With secure, reusable components, developers can accelerate development and focus on shipping apps that combine Ethereum security with low-cost rollup scalability.
Docs → Github →More than
$643 billion
Total Value Transferred through OpenZeppelin Contracts on OP Mainnet
More than
217 million
Transactions executed with OpenZeppelin Contracts on OP Mainnet
Quickly generate secure OP Mainnet smart contracts. Choose modules, preview Solidity, and export production-ready code in seconds.
Try Wizard →Safely deploy and manage upgradeable contracts on OP Mainnet using Hardhat and Foundry plugins. Automate proxies, enforce safety checks, and integrate verification to support long-term reliability on rollups.
Explore Upgrades Plugins →Model Context Protocol integration for OP Mainnet. Generate and deploy secure Solidity contracts with OpenZeppelin libraries directly from AI-powered development environments.
Try Contracts MCP →Generate a ready-to-use frontend for any OP Mainnet contract call. Select the function, connect wallets, and export a complete React app with multi-network support.
Try UI Builder →Verify OP Mainnet multisig transactions before signing. Safe Utils ensures teams can confirm actions with confidence, preventing errors and malicious activity.
Try Safe Utils →Manage role-based permissions with fine-grained admin rights and flexible hierarchies. Essential for DAOs, multisigs, and governance frameworks on OP Mainnet.
Try Access Control →Enterprise-grade security and compliance for institutional adoption
Secure your Ethereum application with comprehensive audits that protect DeFi protocols, tokenization protocols, and more, delivering industry-leading safety standards that empower developers and institutions to scale confidently.
Talk to an Expert → Read More →Strengthen your protocol's offchain infrastructure through comprehensive audits of node implementations, bridge components, and more, ensuring robust foundations for your operations.
Talk to an Expert → Read More →Content to Help You Build