🇺🇸 Made in United States
Discover United States's Leading Open Source Projects: Explore top-notch open source initiatives hailing from the vibrant tech community of United States.
TOP Solidity Projects
Aircoin-official/AirCash
Cash system for AIR.
crytic/echidna
Ethereum smart contract fuzzer
ProjectOpenSea/seaport
Seaport is a marketplace protocol for safely and efficiently buying and selling NFTs.
crytic/not-so-smart-contracts
Examples of Solidity security issues
crytic/building-secure-contracts
Guidelines and training material to write secure smart contracts
Uniswap/v4-core
🦄 🦄 🦄 🦄 Core smart contracts of Uniswap v4
ZhangZhuoSJTU/Web3Bugs
Demystifying Exploitable Bugs in Smart Contracts
Uniswap/v2-periphery
🎚 Peripheral smart contracts for interacting with Uniswap V2
PatrickAlphaC/nft-mix
zeriontech/defi-sdk
DeFi SDK Makes Money Lego Work
semgrep/semgrep-rules
Semgrep rules registry
runtimeverification/verified-smart-contracts
Smart contracts which are formally verified
Uniswap/permit2
🔑🔑🔑 next generation token approvals mechanism
aragon/aragonOS
(Aragon 1) Reference implementation for aragonOS: a Solidity framework for building complex dApps and protocols
Uniswap/v4-periphery
🦄 🦄 🦄 🦄 Peripheral smart contracts for interacting with Uniswap v4
Anish-Agnihotri/flashside
Long-tail MEV contracts to claim Otherside land NFTs
1inch/1inchProtocol
1inch Protocol – fully on-chain DeFi aggregation protocol
bertmiller/sMEV
runtimeverification/evm-semantics
K Semantics of the Ethereum Virtual Machine (EVM)
matter-labs/era-contracts
Smart Contract Submodule For zkSync Era
PatrickAlphaC/hardhat-security-fcc
Devilla/eth-arbitrage
A DeFi Arbitrage Bot with DyDx Flashloans.
ourzora/v3
Uniswap/UniswapX
🦄 Gasless ERC20 swap settlement protocol 🦄
miguelmota/solidity-idiosyncrasies
Solidity gotchas, pitfalls, limitations, and idiosyncrasies.
ProjectOpenSea/operator-filter-registry
dapphub/ds-proxy
a proxy object that can compose transactions on owner's behalf
Austin-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 chains
Anish-Agnihotri/MultiRaffle
NFT distribution with (1) randomized, multi-winner raffles and (2) bulk on-chain metadata generation.
dapphub/ds-math
Safe arithmetic
ava-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 contracts
crytic/properties
Pre-built security properties for common Ethereum operations
Anish-Agnihotri/goblinmode
Long-tail NFT MEV via NFTX flashloans (McGoblinBurger NFTs)
dapphub/ds-token
A simple and sufficient ERC20 implementation
davidiola/nftx-bayc-flash-borrow
flash borrow BAYC NFTs from NFTX to redeem ApeCoin airdrop atomically
ogwurujohnson/arbitrage-bot
An arbitrage bot that detects arbitrage opportunities between pancake and bakery swaps and manages flash swap calls, to the flash swap contract
matter-labs/era-system-contracts
Implementation of the system contracts
OriginProtocol/security
Materials related to security: docs, checklists, processes, etc...
fullyallocated/Default
Protocol Development & Upgradability Framework
dapphub/ds-test
Assertions, equality checks and other test helpers
merklejerk/zipped-contracts
ourzora/zora-721-contracts
Zora drops contracts (powers create.zora.co)
PancakeBunny-finance/Bunny
PancakeBunny helps $cake lovers get more $cakes
AbdelStark/token-vesting-contracts
ERC20 token vesting smart contracts 💰⏳
ourzora/nft-editions
Contracts to lazy-mint editioned ERC721s
yieldyak/smart-contracts
Autocompounder contracts written in Solidity
paxosglobal/usdp-contracts
Solidity smart contracts for the Paxos Standard ERC20 stablecoin USDP
nathanhleung/fallback
💸 Write web apps in Solidity — a Solidity web framework / a proof-of-concept implementation of HTTP over Ethereum.
zobront/paradigm-ctf
template for efficient paradigm ctf testing & scripts
decentraland/mana
⏣ Solidity Contracts for the Decentraland MANA Token
alchemyplatform/learn-solidity-presentations
All of the presentations in the Learn Solidity course
Austin-Williams/flash-mintable-tokens
Anyone can be rich... for an instant.
dapphub/chai
ERC20 wrapper over the Dai Savings Rate
paxosglobal/busd-contract
Solidity smart contracts for the BUSD stablecoin
aragon/evm-storage-proofs
Trustlessly prove a past storage value in a contract to other contracts
dapphub/ds-auth
Updatable, unobtrusive Solidity authorization pattern
dabit3/foundry-workshop
Building and testing smart contracts with Foundry
hashgraph/hedera-improvement-proposal
Hedera Improvement Proposal
figs999/Ethereum
Useful sample code for various Ethereum smart contracts
jspruance/aave-flash-loan-tutorial
Create an Aave Flash Loan arbitrage smart contract from scratch in this comprehensive flash loan tutorial from Block Explorer.
hyperledger-labs/yui-ibc-solidity
IBC in Solidity
microsoft/beginners-series-blockchain
Beginner's Series to Blockchain
decentraland/land
⛰ Contract for LAND
Anish-Agnihotri/partybid
PartyBid is a collector DAO that lets individuals pool capital, bid on Mirror's reserve auctions, and resell NFTs.
Anish-Agnihotri/Hyperbitcoinization
$1 Million USDC vs 1 Wrapped Bitcoin 90-day term bet, inspired by Balaji's tweet
merklejerk/permit-everywhere
aragon/aragon-network-token
Smart contracts for the Aragon Network Token
colinnielsen/safe-tools
Foundry tools for testing with Gnosis Safes
1inch/1inch-token
yieldyak/yak-aggregator
On-chain dex aggregator
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.
Consensys/daedaluzz
Benchmark Generator for Smart-Contract Fuzzers
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.
ourzora/nouns-protocol
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.
lifinance/contracts
LI.FI Smart Contracts
PavanAnanthSharma/Aave-FlashLoan-using-solidity
This contains all the code to execute a successful flash-loan on the Kovan test-net of Ethereum. Flash-loan will be taken from the aave lending pool where will will take 1 DAI as a flash-loan, please keep in mind that you can take very huge flash-loans but make sure you have topped-up enough DAI in to your smart contract i.e. in this instance to pay back to the aave lending protocol as the fees and interest generated over this complex transaction.
1inch/chi
Chi Gastoken by 1inch
NFT42/Avastars-Contracts
Ethereum contracts and unit tests for Avastars project
pangolindex/exchange-contracts
PatrickAlphaC/simple-storage-fcc
ScopeLift/l2-optimizoooors
Gas efficient routers for L2 applications
ensdomains/ethregistrar
massun-onibakuchi/grim-reaper
on-chain liquidation bot built with Huff language
JetJadeja/generalized-lending-protocol
A modern, simple, optimized lending market written in Solidity
jspruance/block-explorer-tutorials
Smart contract source code for my Block Explorer YouTube channel
e-roy/create-web3
a quick start boilerplate for developing web3 apps and deploying smart contracts.
marktoda/forge-gas-snapshot
Library for checked-in, targeted gas snapshots with forge
crytic/echidna-streaming-series
A 6-part series on how to use Echidna on real-world codebases
CodeForcer/foundry-yul
Foundry + Yul template
nftfy/nftfy-v1-core
A decentralized protocol for NFT fractionalization
NoahZinsmeister/franchiser
gemini/dollar
Gemini dollar contract source code
Jon-Becker/renoun
On-chain, non-transferrable badges for rewarding GitHub contributions.
Anish-Agnihotri/sushiswap-exploit
SushiSwap RouteProcessor2 exploit repro + supporting data useful for whitehats.
88mphapp/88mph-contracts