OpenZeppelin Relayers and Monitor are now Open Source

Introducing the alpha release of Open Source Relayers & Monitor for EVM networks, Solana, and Stellar. Get your hands on fully customizable, self-hosted dev tooling for secure onchain automation.

Upgradeable contracts allow us to alter a smart contract to fix a bug, add additional features, or...

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Upgradeable contracts allow us to alter a smart contract to fix a bug, add additional features, or...

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This new release introduces UUPS proxies as a cheaper alternative to Transparent proxies....

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Upgradeable contracts allow us to alter a smart contract to fix a bug, add additional features, or...

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Access control—that is, “who is allowed to do this thing”—is incredibly important in the world of...

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Contracts Wizard is an interface to interactively build a contract out of components from...

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Due to the new built-in overflow checks in Solidity 0.8, which mark the end of the `SafeMath` era,...

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The DeFi space, and recently the NFT space, have continued to see a variety of exploits and even...

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Today we are announcing the release of a new app, called Sentinels, to help prevent ongoing attacks...

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We are excited to bring you many new Defender features this month that add powerful functionality...

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Clones (minimal proxies) as described in ERC1167, are very small, and cheap to deploy,...

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Gasless MetaTransactions with OpenZeppelin Defender. The workshop covers the following: Intro to...

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