OpenZeppelin Contracts is a library for secure smart contract development.

Reproduce DeFi hacked incidents using Foundry.

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

A compilation of patterns and best practices for the smart contract programming language Solidity

Optimized Solidity snippets.

The Lens Protocol

Guidelines and training material to write secure smart contracts

A practical example on how to perform sandwich attacks on Ethereum

The companion to the Youtube tutorials

weird erc20 tokens

🎚 Peripheral smart contracts for interacting with Uniswap V2

Simple, intentionally-limited versions of web3 protocols & apps.

Multicall: Aggregate multiple constant function call results into one

The reference implementation of the ERC-721 non-fungible token standard.

💰One stop shop for Ethereum ABIs, addresses, and Solidity interfaces!

A collection of helpful contracts and libraries for use with Forge and Foundry

A book on all things Foundry, available at https://book.getfoundry.sh.

Official repository for core projects comprising the Celo platform

Build your first app on Optimism!

Semgrep rules for smart contracts based on DeFi exploits

A stablizing reserve currency protocol

The Ethereum Request for Comment repository

1inch Protocol – fully on-chain DeFi aggregation protocol

d20srd reference implementation codified in solidity

Smart Contracts for Argent Wallet

A box containing all you need to get started with developing Aave v1 flash loans

Utility Solidity library composed of basic operations for tightly packed bytes arrays

Implementation of a co-joined ERC20 and ERC721 pair.