πŸ‡ΊπŸ‡Έ 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

1
Aircoin-official/AirCash

Aircoin-official/AirCash

Cash system for AIR.
Solidity
2,761
star
2
crytic/building-secure-contracts

crytic/building-secure-contracts

Guidelines and training material to write secure smart contracts
Solidity
2,208
star
3
crytic/not-so-smart-contracts

crytic/not-so-smart-contracts

Examples of Solidity security issues
Solidity
2,150
star
4
ProjectOpenSea/seaport

ProjectOpenSea/seaport

Seaport is a marketplace protocol for safely and efficiently buying and selling NFTs.
Solidity
2,141
star
5
Uniswap/v4-core

Uniswap/v4-core

πŸ¦„ πŸ¦„ πŸ¦„ πŸ¦„ Core smart contracts of Uniswap v4
Solidity
1,810
star
6
ZhangZhuoSJTU/Web3Bugs

ZhangZhuoSJTU/Web3Bugs

Demystifying Exploitable Bugs in Smart Contracts
Solidity
1,498
star
7
Cyfrin/security-and-auditing-full-course-s23

Cyfrin/security-and-auditing-full-course-s23

The ultimate, most advanced, security, DeFi, assembly, web3 auditor course ever created.
Solidity
1,170
star
8
Uniswap/v2-periphery

Uniswap/v2-periphery

🎚 Peripheral smart contracts for interacting with Uniswap V2
Solidity
916
star
9
PatrickAlphaC/nft-mix

PatrickAlphaC/nft-mix

Solidity
803
star
10
zeriontech/defi-sdk

zeriontech/defi-sdk

DeFi SDK Makes Money Lego Work
Solidity
790
star
11
semgrep/semgrep-rules

semgrep/semgrep-rules

Semgrep rules registry
Solidity
786
star
12
Uniswap/permit2

Uniswap/permit2

πŸ”‘πŸ”‘πŸ”‘ next generation token approvals mechanism
Solidity
745
star
13
runtimeverification/verified-smart-contracts

runtimeverification/verified-smart-contracts

Smart contracts which are formally verified
Solidity
717
star
14
Giveth/minime

Giveth/minime

Minimi Token. ERC20 compatible clonable token
Solidity
671
star
15
aragon/aragonOS

aragon/aragonOS

(Aragon 1) Reference implementation for aragonOS: a Solidity framework for building complex dApps and protocols
Solidity
650
star
16
Uniswap/v4-periphery

Uniswap/v4-periphery

πŸ¦„ πŸ¦„ πŸ¦„ πŸ¦„ Peripheral smart contracts for interacting with Uniswap v4
Solidity
640
star
17
Anish-Agnihotri/flashside

Anish-Agnihotri/flashside

Long-tail MEV contracts to claim Otherside land NFTs
Solidity
567
star
18
1inch/1inchProtocol

1inch/1inchProtocol

1inch Protocol – fully on-chain DeFi aggregation protocol
Solidity
565
star
19
bertmiller/sMEV

bertmiller/sMEV

Solidity
493
star
20
matter-labs/era-contracts

matter-labs/era-contracts

Smart Contract Submodule For zkSync Era
Solidity
481
star
21
PatrickAlphaC/hardhat-security-fcc

PatrickAlphaC/hardhat-security-fcc

Solidity
410
star
22
Devilla/eth-arbitrage

Devilla/eth-arbitrage

A DeFi Arbitrage Bot with DyDx Flashloans.
Solidity
392
star
23
Cyfrin/foundry-devops

Cyfrin/foundry-devops

Solidity
388
star
24
Uniswap/UniswapX

Uniswap/UniswapX

πŸ¦„ Gasless ERC20 swap settlement protocol πŸ¦„
Solidity
380
star
25
ourzora/v3

ourzora/v3

Solidity
370
star
26
ProjectOpenSea/operator-filter-registry

ProjectOpenSea/operator-filter-registry

Solidity
311
star
27
dapphub/ds-proxy

dapphub/ds-proxy

a proxy object that can compose transactions on owner's behalf
Solidity
311
star
28
Cyfrin/sc-exploits-minimized

Cyfrin/sc-exploits-minimized

A repo to showcase web3 hacks
Solidity
305
star
29
Austin-Williams/uniswap-flash-swapper

Austin-Williams/uniswap-flash-swapper

Boiler plate for Uniswap v2 flash loans (and flash swaps)
Solidity
299
star
30
Consensys/anonymous-zether

Consensys/anonymous-zether

A private payment system for Ethereum-based blockchains, with no trusted setup.
Solidity
295
star
31
ProjectOpenSea/seadrop

ProjectOpenSea/seadrop

Smart contracts for primary drops on EVM chains
Solidity
290
star
32
crytic/properties

crytic/properties

Pre-built security properties for common Ethereum operations
Solidity
281
star
33
Anish-Agnihotri/MultiRaffle

Anish-Agnihotri/MultiRaffle

NFT distribution with (1) randomized, multi-winner raffles and (2) bulk on-chain metadata generation.
Solidity
269
star
34
dapphub/ds-math

dapphub/ds-math

Safe arithmetic
Solidity
268
star
35
ava-labs/avalanche-smart-contract-quickstart

ava-labs/avalanche-smart-contract-quickstart

The easiest way to build smart contracts on Avalanche.
Solidity
250
star
36
Anish-Agnihotri/punk-nftx-meebit-arb

Anish-Agnihotri/punk-nftx-meebit-arb

Quick & dirty NFTX arbitrage contracts, via flash loan, to exploit Meebit redemption.
Solidity
246
star
37
marbleprotocol/flash-lending

marbleprotocol/flash-lending

Flash lending smart contracts
Solidity
245
star
38
Anish-Agnihotri/goblinmode

Anish-Agnihotri/goblinmode

Long-tail NFT MEV via NFTX flashloans (McGoblinBurger NFTs)
Solidity
237
star
39
Cyfrin/foundry-defi-stablecoin-cu

Cyfrin/foundry-defi-stablecoin-cu

Solidity
236
star
40
dapphub/ds-token

dapphub/ds-token

A simple and sufficient ERC20 implementation
Solidity
225
star
41
fullyallocated/Default

fullyallocated/Default

Protocol Development & Upgradability Framework
Solidity
222
star
42
davidiola/nftx-bayc-flash-borrow

davidiola/nftx-bayc-flash-borrow

flash borrow BAYC NFTs from NFTX to redeem ApeCoin airdrop atomically
Solidity
221
star
43
dapphub/ds-test

dapphub/ds-test

Assertions, equality checks and other test helpers
Solidity
208
star
44
ogwurujohnson/arbitrage-bot

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
Solidity
205
star
45
matter-labs/era-system-contracts

matter-labs/era-system-contracts

Implementation of the system contracts
Solidity
201
star
46
OriginProtocol/security

OriginProtocol/security

Materials related to security: docs, checklists, processes, etc...
Solidity
199
star
47
alchemyplatform/learn-solidity-presentations

alchemyplatform/learn-solidity-presentations

All of the presentations in the Learn Solidity course
Solidity
198
star
48
merklejerk/zipped-contracts

merklejerk/zipped-contracts

Solidity
193
star
49
ourzora/zora-721-contracts

ourzora/zora-721-contracts

Zora drops contracts (powers create.zora.co)
Solidity
189
star
50
PancakeBunny-finance/Bunny

PancakeBunny-finance/Bunny

PancakeBunny helps $cake lovers get more $cakes
Solidity
183
star
51
ourzora/nft-editions

ourzora/nft-editions

Contracts to lazy-mint editioned ERC721s
Solidity
164
star
52
nathanhleung/fallback

nathanhleung/fallback

πŸ’Έ Write web apps in Solidity β€” a Solidity web framework / a proof-of-concept implementation of HTTP over Ethereum.
Solidity
163
star
53
paxosglobal/usdp-contracts

paxosglobal/usdp-contracts

Solidity smart contracts for the Paxos Standard ERC20 stablecoin USDP
Solidity
162
star
54
yieldyak/smart-contracts

yieldyak/smart-contracts

Autocompounder contracts written in Solidity
Solidity
161
star
55
jspruance/aave-flash-loan-tutorial

jspruance/aave-flash-loan-tutorial

Create an Aave Flash Loan arbitrage smart contract from scratch in this comprehensive flash loan tutorial from Block Explorer.
Solidity
154
star
56
zobront/paradigm-ctf

zobront/paradigm-ctf

template for efficient paradigm ctf testing & scripts
Solidity
153
star
57
decentraland/mana

decentraland/mana

⏣ Solidity Contracts for the Decentraland MANA Token
Solidity
148
star
58
dapphub/chai

dapphub/chai

ERC20 wrapper over the Dai Savings Rate
Solidity
147
star
59
Austin-Williams/flash-mintable-tokens

Austin-Williams/flash-mintable-tokens

Anyone can be rich... for an instant.
Solidity
145
star
60
dabit3/foundry-workshop

dabit3/foundry-workshop

Building and testing smart contracts with Foundry
Solidity
144
star
61
aragon/evm-storage-proofs

aragon/evm-storage-proofs

Trustlessly prove a past storage value in a contract to other contracts
Solidity
141
star
62
paxosglobal/busd-contract

paxosglobal/busd-contract

Solidity smart contracts for the BUSD stablecoin
Solidity
141
star
63
dapphub/ds-auth

dapphub/ds-auth

Updatable, unobtrusive Solidity authorization pattern
Solidity
138
star
64
colinnielsen/safe-tools

colinnielsen/safe-tools

Foundry tools for testing with Gnosis Safes
Solidity
137
star
65
hashgraph/hedera-improvement-proposal

hashgraph/hedera-improvement-proposal

Hedera Improvement Proposal
Solidity
134
star
66
PatrickAlphaC/rwa-creator

PatrickAlphaC/rwa-creator

Solidity
133
star
67
hyperledger-labs/yui-ibc-solidity

hyperledger-labs/yui-ibc-solidity

IBC in Solidity
Solidity
132
star
68
figs999/Ethereum

figs999/Ethereum

Useful sample code for various Ethereum smart contracts
Solidity
131
star
69
yieldyak/yak-aggregator

yieldyak/yak-aggregator

On-chain dex aggregator
Solidity
124
star
70
microsoft/beginners-series-blockchain

microsoft/beginners-series-blockchain

Beginner's Series to Blockchain
Solidity
123
star
71
lifinance/contracts

lifinance/contracts

LI.FI Smart Contracts
Solidity
121
star
72
Consensys/daedaluzz

Consensys/daedaluzz

Benchmark Generator for Smart-Contract Fuzzers
Solidity
120
star
73
Anish-Agnihotri/Hyperbitcoinization

Anish-Agnihotri/Hyperbitcoinization

$1 Million USDC vs 1 Wrapped Bitcoin 90-day term bet, inspired by Balaji's tweet
Solidity
119
star
74
Anish-Agnihotri/partybid

Anish-Agnihotri/partybid

PartyBid is a collector DAO that lets individuals pool capital, bid on Mirror's reserve auctions, and resell NFTs.
Solidity
119
star
75
decentraland/land

decentraland/land

β›° Contract for LAND
Solidity
117
star
76
aragon/aragon-network-token

aragon/aragon-network-token

Smart contracts for the Aragon Network Token
Solidity
116
star
77
merklejerk/permit-everywhere

merklejerk/permit-everywhere

Solidity
115
star
78
1inch/1inch-token

1inch/1inch-token

Solidity
114
star
79
ourzora/nouns-protocol

ourzora/nouns-protocol

Solidity
108
star
80
Consensys/quorum-dev-quickstart

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.
Solidity
108
star
81
abyssfinance/abyss-daico

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.
Solidity
106
star
82
pbshgthm/blacksmith

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.
Solidity
102
star
83
massun-onibakuchi/grim-reaper

massun-onibakuchi/grim-reaper

on-chain liquidation bot built with Huff language
Solidity
100
star
84
alchemyplatform/modular-account

alchemyplatform/modular-account

Solidity
100
star
85
PatrickAlphaC/simple-storage-fcc

PatrickAlphaC/simple-storage-fcc

Solidity
99
star
86
marktoda/forge-gas-snapshot

marktoda/forge-gas-snapshot

Library for checked-in, targeted gas snapshots with forge
Solidity
98
star
87
1inch/chi

1inch/chi

Chi Gastoken by 1inch
Solidity
98
star
88
crytic/echidna-streaming-series

crytic/echidna-streaming-series

A 6-part series on how to use Echidna on real-world codebases
Solidity
97
star
89
jspruance/block-explorer-tutorials

jspruance/block-explorer-tutorials

Smart contract source code for my Block Explorer YouTube channel
Solidity
95
star
90
alchemyplatform/light-account

alchemyplatform/light-account

Solidity
95
star
91
NFT42/Avastars-Contracts

NFT42/Avastars-Contracts

Ethereum contracts and unit tests for Avastars project
Solidity
94
star
92
ScopeLift/l2-optimizoooors

ScopeLift/l2-optimizoooors

Gas efficient routers for L2 applications
Solidity
94
star
93
JetJadeja/generalized-lending-protocol

JetJadeja/generalized-lending-protocol

A modern, simple, optimized lending market written in Solidity
Solidity
93
star
94
pangolindex/exchange-contracts

pangolindex/exchange-contracts

Solidity
93
star
95
ensdomains/ethregistrar

ensdomains/ethregistrar

Solidity
92
star
96
e-roy/create-web3

e-roy/create-web3

a quick start boilerplate for developing web3 apps and deploying smart contracts.
Solidity
90
star
97
CodeForcer/foundry-yul

CodeForcer/foundry-yul

Foundry + Yul template
Solidity
89
star
98
NoahZinsmeister/franchiser

NoahZinsmeister/franchiser

Solidity
89
star
99
crytic/fuzz-utils

crytic/fuzz-utils

A tool to automatically generate Foundry unit test cases from Echidna and Medusa failed properties
Solidity
89
star
100
nftfy/nftfy-v1-core

nftfy/nftfy-v1-core

A decentralized protocol for NFT fractionalization
Solidity
88
star