Build Securely on OP Mainnet with OpenZeppelin
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.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
contract MyToken is ERC20, Ownable {
constructor() ERC20("MyToken", "MTK") Ownable(msg.sender) {}
function mint(address to, uint256 amount) external onlyOwner {
_mint(to, amount);
}
}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
Contracts
Contracts Wizard
Quickly generate secure OP Mainnet smart contracts. Choose modules, preview Solidity, and export production-ready code in seconds.
Upgrades Plugins
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.
Contracts MCP
Model Context Protocol integration for OP Mainnet. Generate and deploy secure Solidity contracts with OpenZeppelin libraries directly from AI-powered development environments.
Open Source Tools
Relayer
Infrastructure to relay OP Mainnet transactions securely, reducing backend complexity and giving applications a reliable way to interact with the rollup.
Monitor
Track OP Mainnet applications in real time. Detect unusual activity, monitor critical events, and trigger alerts or automated responses to protect contracts and users.
UI Builder
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.
Safe Utils
Verify OP Mainnet multisig transactions before signing. Safe Utils ensures teams can confirm actions with confidence, preventing errors and malicious activity.
Role Manager
Manage role-based permissions with fine-grained admin rights and flexible hierarchies. Essential for DAOs, multisigs, and governance frameworks on OP Mainnet.

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Enterprise-grade compliance and certifications
- CCPA Compliant
- SOC2 Certified
- GDPR Compliant
Security Services
Smart Contract Security Audit
Secure your OP Mainnet smart contracts through rigorous audits that strengthen your application, delivering the gold-standard security that empowers confident scaling across the Superchain.
Blockchain Infrastructure Audit
Strengthen your offchain infrastructure through detailed audits covering sequencer operations, bridge security, and OP Stack customizations, delivering reliable foundations for applications and rollup deployments.