OpenZeppelin Contracts is a library for secure smart contract development.

Modern, opinionated, and gas optimized building blocks for smart contract development.

Seaport is a marketplace protocol for safely and efficiently buying and selling NFTs.

🦄 🦄 🦄 🦄 Core smart contracts of Uniswap v4

An Omnichain Interoperability Protocol

Multicall: Aggregate multiple constant function call results into one

Collection of smart contracts deployable via thirdweb

Decentralised Ethereum Liquid Staking Protocol.

Multicall: Aggregate multiple constant function call results into one

DeFi SDK Makes Money Lego Work

🔑🔑🔑 next generation token approvals mechanism

🦄 🦄 🦄 🦄 Peripheral smart contracts for interacting with Uniswap v4

Build your first app on Optimism!

(Aragon 1) Reference implementation for aragonOS: a Solidity framework for building complex dApps and protocols

Semgrep rules for smart contracts based on DeFi exploits

d20srd reference implementation codified in solidity

A list of smart contracts coded in solidity

Long-tail MEV contracts to claim Otherside land NFTs

Smart Contracts for Argent Wallet

L2BEAT is an analytics and research website about Ethereum layer two (L2) scaling solutions.

Implementation of a co-joined ERC20 and ERC721 pair.

A DeFi Arbitrage Bot with DyDx Flashloans.

A Brownie mix containing all you need to get started with developing flash loans

Factory smart contract to make easier and safer usage of the `CREATE` and `CREATE2` EVM opcodes as well as of `CREATE3`-based (i.e. without an initcode factor) contract creations.

Implementation of the Farcaster contracts

Uniswap V3 clone built to learn smart-contracts development in Solidity

a proxy object that can compose transactions on owner's behalf