OP Mainnet OpenZeppelin

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.

Professional Services

Smart Contract Security Audit

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.

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Blockchain Infrastructure Audit

Strengthen your protocol's offchain infrastructure through comprehensive audits of node implementations, bridge components, and more, ensuring robust foundations for your operations.

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Content to Help You Build

Inside Ethereum's Engine: How the Execution Layer Actually Works
The Notorious Bug Digest #5: Post EIP-7702 Pitfalls, JIT Penalty Rebates, and Manipulation of Recursive Functions
Beyond Zero Knowledge: How Fully Homomorphic Encryption Enables Private Shared State
The Notorious Bug Digest #4
Six Questions To Ask Before Writing a Uniswap v4 Hook
The Notorious Bug Digest #3
Beyond Smart Contracts: A Deep Dive into Blockchain Infrastructure Security Auditing
ERC-4626 Tokens in DeFi: Exchange Rate Manipulation Risks
The Notorious Bug Digest #2
The Notorious Bug Digest #1
From Stage 0 to Stage 1: Security Council Best Practices in Rollup Governance
What is a Smart Contract Audit: Lessons from OpenZeppelin’s 700+ Audits
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