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The standard for secure onchain applications at any scale.
Feb 24 β€’ 9 tweets β€’ 2 min read
The OpenZeppelin Uniswap Hooks Library v1.0 is now live πŸ¦„

This release introduces secure, modular hooks for Uniswap v4, making it easier for developers to build powerful applications on top of liquidity pools.

Here is what's in it πŸ‘‡ Image The first release of the Hooks Contracts is divided in 3 sections:

β€’ Base Hooks
β€’ Fee Hooks
β€’ Utilities
Oct 24, 2024 β€’ 8 tweets β€’ 2 min read
πŸš€ Big news! OpenZeppelin has received a grant from the @ethereum Foundation

Now, we will enhance AccountAbstraction via ERC-4337 in our battle-tested OpenZeppelin Contracts library.

Here's what we're building and why it matters. πŸ§΅πŸ‘‡ Image TRUSTED DEVELOPMENT FRAMEWORK

Since 2016, OpenZeppelin Contracts have been the go-to for smart contract development, securing trillions in transactions. Trusted across the ecosystem, from DeFi giants to individual builders πŸ”
Sep 19, 2023 β€’ 6 tweets β€’ 2 min read
OpenZeppelin Contracts 5.0 Release Candidate is now available for public testing πŸ§ͺ

5.0 includes an all new AccessManager module for improved security and transparency, plus efficiency improvements and simplifications.

Bug bounty rewards increase by 50% during the RC phase. Redefined Access Control πŸ”

AccessManager is a new and comprehensive solution for role management across contracts. Instead of having to manage them separately, AccessManager allows you to manage permissions from a central contract, also making your system easier to audit. Image
Aug 29, 2023 β€’ 12 tweets β€’ 5 min read
Announcing Defender 2.0, a mission-critical developer security platform to code, audit, deploy, monitor, and operate blockchain applications

Built for security and speed across all stages of the development lifecycle

Dive in and join the waitlist

openzeppelin.com/defender2-wait…
Image SECURITY ON EVERY PULL REQUEST

Automatic code analysis for vulnerabilities, differences, improvements, gas costs, and test runs integrated directly into your development workflow

Powered by machine learning intelligence, cutting-edge tools, and a native GitHub app integration
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Oct 20, 2022 β€’ 13 tweets β€’ 3 min read
Did you know that you can use a collection of Forta detection bots to automatically analyze, inspect, and detect bugs on newly deployed Contracts?

Thread belowπŸ‘‡ The Contract Bots Gang is a collection of @FortaNetwork bots separated into three layers developed by our Security Research Experts at OpenZeppelin:
βš™οΈ Deconstruction layer
πŸ’‘ Detection layer
🐞 Bug hunting layer
Apr 18, 2022 β€’ 5 tweets β€’ 1 min read
Introducing Contracts Wizard for Cairo! An interactive generator to bootstrap your smart contracts and learn about OpenZeppelin Contracts for Cairo.
A thread β€‹β€‹πŸ‘‡ What is Cairo: Contracts Wizard for Cairo is an interface to interactively build a smart contract out of components from OpenZeppelin Contracts for Cairo. Cairo is the native smart contract language for StarkNet, a decentralized ZK Rollup.
Jun 19, 2018 β€’ 4 tweets β€’ 2 min read
2 years ago, the DAO was hacked and we learned the importance of security in smart contract development the hard way. We created #OpenZeppelin to fill this gap As of today, #OpenZeppelin libraries were downloaded 100,000+ times, leveraging a community of 4500+ developers. Still, smart contract development remains a difficult and inefficient endeavor, analogous to the early days of computing