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

Securify v2.0

Smart contract and bot implementation that leverages flash swaps while performing arbitrage.

Ethereum Commonwealth Security Department conducted over 400 security audits since 2018. Not even a single contract that we audited was hacked. You can access our audit reports in the ISSUES of this repo. We are accepting new audit requests.

Source code: https://etherscan.io/address/0x2b591e99afe9f32eaa6214f7b7629768c40eeb39#contracts | All rights are reserved. IT IS NOT LICENSED FOR COPYING. We don't use github for dev.

Smart contracts for developers in the Immutable ecosystem.

EtherAuthority creates smart contracts including: DeFi, NFT, DAO, Metaverse, Gaming, DEX, Launchpad, L1 Blockchain, Escrow, Cross-chain Bridge, and many more.

This repository offers a smart contract to manage seed sales / pre-sales. It is written in Solidity for EVM blockchains (e.g. Ethereum, BSC, Cronos, ...).

30 Days of Solidity step-by-step guide to learn Smart Contract Development.

Comparison of flash loan solutions on Ethereum

BokkyPooBah's Red-Black Binary Search Tree Library

Crypto arbitrage bot that searches for a significant difference in crypto prices on a number of exchanges and will execute the simultaneous buying and selling of said crypto through a flash loan provided by the AAVE Flash Loan Smart Contract V2.

On-chain, non-transferrable badges for rewarding GitHub contributions.

Hyper-optimized batch mints to a large number of distinct recipients in a single transaction. Join Showtime:

EVM-compatible Smart Contract bot which performs DEX arbitrage via Aave & dYdX Flash Loans

🌐 A Collection of Notes & Knowledge about Solidity inline Assembly 🔧

A very simple tutorial to follow if you want to add value to an ERC-20 Token and enable trading on a DeFI Exchange.

Core Smart Contracts of Unique One

Solutions and Walkthrough for Openzeppelin's Ethernaut CTF written in Solidity with the help of Foundry

Based on a BuildSpace project where I learned to programmatically generate a NFT collection, write and deploy a smart contract in Solidity, and build a React dApp that let's users connect their wallets to interact with the NFTs.