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.

Guidelines and training material to write secure smart contracts

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

Examples of Solidity security issues

A practical example on how to perform sandwich attacks on Ethereum

weird erc20 tokens

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

Multicall: Aggregate multiple constant function call results into one

A summary and solutions for 200+ CTF blockchain challenges

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.

Multicall: Aggregate multiple constant function call results into one

On chain interactive fault prover for Ethereum

Long-tail MEV contracts to claim Otherside land NFTs

State-of-the-art, highly opinionated, hyper-optimised, and secure 🐍Vyper smart contract building blocks.

we do a little bit of mathematics to make a little bit of money

Official repository for Paradigm CTF 2021

Implementation of a co-joined ERC20 and ERC721 pair.

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.

Damn Vulnerable DeFi - Foundry Version

Merkle Proof Generator and Validator in Solidity

🦄 Gasless ERC20 swap settlement protocol 🦄

An experimental decentralized art factory by Justin Roiland and Paradigm.

Forkable template to get you started with Foundry's Forge

Robust, Feature-Rich Solidity Template Repository for Foundry Projects with Scripting, Testing, and Utility Bash Scripts.