Discover United States's Leading Open Source Projects: Explore top-notch open source initiatives hailing from the vibrant tech community of United States.
Aircoin-official/AirCash
Cash system for AIR.crytic/building-secure-contracts
Guidelines and training material to write secure smart contractscrytic/not-so-smart-contracts
Examples of Solidity security issuesProjectOpenSea/seaport
Seaport is a marketplace protocol for safely and efficiently buying and selling NFTs.Uniswap/v4-core
π¦ π¦ π¦ π¦ Core smart contracts of Uniswap v4ZhangZhuoSJTU/Web3Bugs
Demystifying Exploitable Bugs in Smart ContractsCyfrin/security-and-auditing-full-course-s23
The ultimate, most advanced, security, DeFi, assembly, web3 auditor course ever created.Uniswap/v2-periphery
π Peripheral smart contracts for interacting with Uniswap V2PatrickAlphaC/nft-mix
zeriontech/defi-sdk
DeFi SDK Makes Money Lego Worksemgrep/semgrep-rules
Semgrep rules registryUniswap/permit2
πππ next generation token approvals mechanismruntimeverification/verified-smart-contracts
Smart contracts which are formally verifiedGiveth/minime
Minimi Token. ERC20 compatible clonable tokenaragon/aragonOS
(Aragon 1) Reference implementation for aragonOS: a Solidity framework for building complex dApps and protocolsUniswap/v4-periphery
π¦ π¦ π¦ π¦ Peripheral smart contracts for interacting with Uniswap v4Anish-Agnihotri/flashside
Long-tail MEV contracts to claim Otherside land NFTs1inch/1inchProtocol
1inch Protocol β fully on-chain DeFi aggregation protocolbertmiller/sMEV
matter-labs/era-contracts
Smart Contract Submodule For zkSync EraPatrickAlphaC/hardhat-security-fcc
Devilla/eth-arbitrage
A DeFi Arbitrage Bot with DyDx Flashloans.Cyfrin/foundry-devops
Uniswap/UniswapX
π¦ Gasless ERC20 swap settlement protocol π¦ourzora/v3
ProjectOpenSea/operator-filter-registry
dapphub/ds-proxy
a proxy object that can compose transactions on owner's behalfCyfrin/sc-exploits-minimized
A repo to showcase web3 hacksAustin-Williams/uniswap-flash-swapper
Boiler plate for Uniswap v2 flash loans (and flash swaps)Consensys/anonymous-zether
A private payment system for Ethereum-based blockchains, with no trusted setup.ProjectOpenSea/seadrop
Smart contracts for primary drops on EVM chainscrytic/properties
Pre-built security properties for common Ethereum operationsAnish-Agnihotri/MultiRaffle
NFT distribution with (1) randomized, multi-winner raffles and (2) bulk on-chain metadata generation.dapphub/ds-math
Safe arithmeticava-labs/avalanche-smart-contract-quickstart
The easiest way to build smart contracts on Avalanche.Anish-Agnihotri/punk-nftx-meebit-arb
Quick & dirty NFTX arbitrage contracts, via flash loan, to exploit Meebit redemption.marbleprotocol/flash-lending
Flash lending smart contractsAnish-Agnihotri/goblinmode
Long-tail NFT MEV via NFTX flashloans (McGoblinBurger NFTs)Cyfrin/foundry-defi-stablecoin-cu
dapphub/ds-token
A simple and sufficient ERC20 implementationfullyallocated/Default
Protocol Development & Upgradability Frameworkdavidiola/nftx-bayc-flash-borrow
flash borrow BAYC NFTs from NFTX to redeem ApeCoin airdrop atomicallydapphub/ds-test
Assertions, equality checks and other test helpersogwurujohnson/arbitrage-bot
An arbitrage bot that detects arbitrage opportunities between pancake and bakery swaps and manages flash swap calls, to the flash swap contractmatter-labs/era-system-contracts
Implementation of the system contractsOriginProtocol/security
Materials related to security: docs, checklists, processes, etc...alchemyplatform/learn-solidity-presentations
All of the presentations in the Learn Solidity coursemerklejerk/zipped-contracts
ourzora/zora-721-contracts
Zora drops contracts (powers create.zora.co)PancakeBunny-finance/Bunny
PancakeBunny helps $cake lovers get more $cakesourzora/nft-editions
Contracts to lazy-mint editioned ERC721snathanhleung/fallback
πΈ Write web apps in Solidity β a Solidity web framework / a proof-of-concept implementation of HTTP over Ethereum.paxosglobal/usdp-contracts
Solidity smart contracts for the Paxos Standard ERC20 stablecoin USDPyieldyak/smart-contracts
Autocompounder contracts written in Solidityjspruance/aave-flash-loan-tutorial
Create an Aave Flash Loan arbitrage smart contract from scratch in this comprehensive flash loan tutorial from Block Explorer.zobront/paradigm-ctf
template for efficient paradigm ctf testing & scriptsdecentraland/mana
β£ Solidity Contracts for the Decentraland MANA Tokendapphub/chai
ERC20 wrapper over the Dai Savings RateAustin-Williams/flash-mintable-tokens
Anyone can be rich... for an instant.dabit3/foundry-workshop
Building and testing smart contracts with Foundryaragon/evm-storage-proofs
Trustlessly prove a past storage value in a contract to other contractspaxosglobal/busd-contract
Solidity smart contracts for the BUSD stablecoindapphub/ds-auth
Updatable, unobtrusive Solidity authorization patterncolinnielsen/safe-tools
Foundry tools for testing with Gnosis Safeshashgraph/hedera-improvement-proposal
Hedera Improvement ProposalPatrickAlphaC/rwa-creator
hyperledger-labs/yui-ibc-solidity
IBC in Solidityfigs999/Ethereum
Useful sample code for various Ethereum smart contractsyieldyak/yak-aggregator
On-chain dex aggregatormicrosoft/beginners-series-blockchain
Beginner's Series to Blockchainlifinance/contracts
LI.FI Smart ContractsConsensys/daedaluzz
Benchmark Generator for Smart-Contract FuzzersAnish-Agnihotri/Hyperbitcoinization
$1 Million USDC vs 1 Wrapped Bitcoin 90-day term bet, inspired by Balaji's tweetAnish-Agnihotri/partybid
PartyBid is a collector DAO that lets individuals pool capital, bid on Mirror's reserve auctions, and resell NFTs.decentraland/land
β° Contract for LANDaragon/aragon-network-token
Smart contracts for the Aragon Network Tokenmerklejerk/permit-everywhere
1inch/1inch-token
ourzora/nouns-protocol
Consensys/quorum-dev-quickstart
The Quorum Developer Quickstart utility can be used to rapidly generate local Quorum blockchain networks for development and demo purposes using Besu, GoQuorum, and Codefi Orchestrate.abyssfinance/abyss-daico
DAICO is an innovative fundraising model that merges some of the benefits of Decentralized Autonomous Organizations (DAOs), aimed at upgrading and making the initial ICO concept more transparent.pbshgthm/blacksmith
Create Blacksmiths to use the Foundry. Blacksmith is a 'User Contract' generator. User contracts can interface with the test contracts in OOP style and simplify complex boilerplate setup.massun-onibakuchi/grim-reaper
on-chain liquidation bot built with Huff languagealchemyplatform/modular-account
PatrickAlphaC/simple-storage-fcc
marktoda/forge-gas-snapshot
Library for checked-in, targeted gas snapshots with forge1inch/chi
Chi Gastoken by 1inchcrytic/echidna-streaming-series
A 6-part series on how to use Echidna on real-world codebasesjspruance/block-explorer-tutorials
Smart contract source code for my Block Explorer YouTube channelalchemyplatform/light-account
NFT42/Avastars-Contracts
Ethereum contracts and unit tests for Avastars projectScopeLift/l2-optimizoooors
Gas efficient routers for L2 applicationsJetJadeja/generalized-lending-protocol
A modern, simple, optimized lending market written in Soliditypangolindex/exchange-contracts
ensdomains/ethregistrar
e-roy/create-web3
a quick start boilerplate for developing web3 apps and deploying smart contracts.CodeForcer/foundry-yul
Foundry + Yul templateNoahZinsmeister/franchiser
crytic/fuzz-utils
A tool to automatically generate Foundry unit test cases from Echidna and Medusa failed propertiesnftfy/nftfy-v1-core
A decentralized protocol for NFT fractionalizationLove Open Source and this site? Check out how you can help us