Tag
#openzeppelin
423 repositories
Repos
Learn Blockchain, Solidity, and Full Stack Web3 Development with Javascript
Blockchain educational resources curated by the OpenZeppelin team
NFT Marketplace prototype using Typescript, WalletConnect, Metamask, Web3, Solidity, React and Storybook
Opinionated Dapp Starter Template provides a solid foundation for building Ethereum-based applications. It incorporates various tools and frameworks such as React, Next.js, Hardhat, TypeChain, web3-react, daisyUI Tailwind CSS Components, and OpenZeppelin.
This a smart contract for performing arbitrage with AAVE flashloan between Uniswap & Sushiswap
A collection of learning materials on Blockchain, Hyperledger, Ethereum, Solana, and IPFS.
Dapp that implements a "fake-stake" mechanism on any ERC20 token
A blockchain monitoring service that watches for specific on-chain activities and triggers notifications based on configurable conditions.
An OpenZeppelin starter kit containing React, OpenZeppelin SDK & OpenZeppelin Contracts.
This project provides sample codes to build a simple NFT marketplace with Amazon Managed Blockchain.
A Decentralized Application (dApp) with React that demonstrates how to implement IPFS file uploads and store the IPFS hash in an Ethereum smart contract.
Turtle-themed NFT game and marketplace promoting Indian art.
This repository contains tutorial on building Upgradable Smart Contracts and showcasing it with a simple NFT Minter dApp with React and Moralis.
An OpenZeppelin starter kit tutorial containing React, OpenZeppelin SDK & OpenZeppelin Contracts.
Source code for Crescendo NFT Marketplace, music distribution on Binance Smart Chain.
Optimint is a gas-optimized ERC721 reference implementation that's based on OpenZeppelin Contracts, and requires only 1 SSTORE operation per batch-mint.
A starter kit for Ethereum Smart Contracts development
A decentralized crowdfunding application built with Solidity, Hardhat, Sepolia, Next.js, and ethers.js.
Silo Contracts V2 is a collection of modular Solidity smart contracts designed to streamline decentralized finance applications on Ethereum. It focuses on security, scalability, and ease of integration.
An ERC721 token and Crowdsale to buy and give away an Ethereum based Collectible Gift
👾 my foundry framework and detailed solutions for each ethernaut level
Building NFTs (ERC721 & ERC1155) for OpenSea using Truffle, Moralis, and Openzeppelin
This project implements an ERC20 ethereum token and the web3 ethereum client into a REST API using an express/nodejs server
ERC-721 Token based NFT market place where you can mint, own & sell NFTs . Please use ropsten test network for testing hosted website .
Initial Coin Offering (ICO) smart contract written in Solidity. This repository budling with hardhat and openzeppelin with best practice code pattern.
Implementation of the various upgradeable proxy pattern available with solidity: TransparentUpgradeableProxy, UUPSUpgradeable, Beacon, Diamond
Solidity upgradeable contracts proxy based on unstructured storage pattern
Decentralized application for fundraising built on ethereum network 🌐. Set up a fundraising campaign, donate ETH💰, generate a receipt🗒️, and withdraw the amount💲
Kittos is NFT Marketplace built with Next Js, Hardhat, Solidity, Arweave + Bundlr Client and All The CSS Magic with TailwindCSS. 😺
NFTスマートコントラクト開発の基本を学びたい方へ無償提供する学習用ソースコードです。RemixIDE,Solidity(v0.8.14),OpenZeppelin(v4.6.0)を使用しています。
Tierion Network Token (TNT) ERC20 Ethereum Smart Contract
A blockchain token smart contract develop framework, like an OpenZeppelin Golang implement
Payment gateway for ERC-20 (USDT-like) tokens
Permit-enabled, upgradeable ERC20 smart contract template.
A solidity smart contract for the Ethereum based zombie game.
📦 An awesome truffle box with sane defaults for solidity projects.
OpenZeppelin Ethernaut CTF solved & tested with Foundry
A full stack DEFI app that enables you to lend tokens to the smart contract and also borrow other tokens from the pool.
Simple boilerplate for getting started quickly developing upgradeable smart contracts using OpenZeppelin UUPS proxies.
Smart Contracts for the MoNA Spaces collection on Ethereum, Polygon, Rinkeby, and Mumbai
Hardhat ERC721 with OpenSea Proxies. Uses Arweave to store contract and image metadata.
Smart contracts powering the TREZA ecosystem. Privacy-preserving infrastructure with zero-knowledge compliance technology.
A EVM token bridge build using NextJS and relies on OpenZeppelin Defender to manage transactions.
Gasless Meta Transactions with OpenZeppelin Defender Example
“Solidity smart contract collection for LedgerWave: reusable Ethereum contracts for tokenization, access control, utilities, and protocol logic ready for composable blockchain development.
Starter Kit for upgradable NFT smart contract on the Ethereum blockchain
Smart contracts for Bubble v1 protocol 📜
This is the official repository for Alps Finance Smart Contracts using Truffle Framework
DeFiPlex is a decentralized finance (DeFi) platform designed to be a versatile and comprehensive hub for decentralized financial activities. Built on the Polygon blockchain, DeFiPlex offers a wide range of financial services, including staking, lending, borrowing, and governance, all powered by smart contracts. 🌐💰🔒
Develop, test and deploy an upgradeable NFT contract based on OpenZeppelin ERC721 Solidity framework and Hardhat development environment. Deploy to any EVM blockchain. TypeScript.
Deploying TRC20 token to the TRON network
Twitter clone with all of Twitter's functionalities as well as additional web3 functionalities to mint and display NFTs as profile image
An example ERC-20 token implementation built with Hardhat, Solidity, and OpenZeppelin contracts.
Decentralized crowdfunding platform with transparent fund distribution
Truffle-themed ERC721 (using OpenZeppelin) for exploring the development lifecycle
Smart Contract USDC and USDT code (solidity) ERC20 stablecoin contract with mint and burn functions, 6 decimals like USDC/USDT.
The DeFi Flash Loan Arbitrage Bot is a production-ready automated trading system that exploits price inefficiencies across decentralized exchanges using Aave V3 flash loans. Unlike traditional arbitrage that requires substantial capital, this bot borrows assets without collateral, executes profitable trades, and returns the loan—all within a single
Ethereum-backed tokens (coins) for donations to the deserving.
Decentralize Exchange 💱 Protocol like AMM Uniswap. This dapp is a representation of a decentralized finance (Defi) system on blockchain. There is no central authorization in this market. So, everything that happens here is in pre written codes on smart contracts which cannot be altered.
This dapp is built on the Ethereum network. In this dapp user can First mint ERC-20 token for 0.001 ether. But if the user have Crypto Dev NFT (ERC721) then they can clain 10 token for each for free.
Source code for FriendsFingers Smart Contracts
In this short, but practical session, we will go through the ins and outs of smart contracts and help you understand what is really going on behind the open-sourced curtain of the blockchain. We will analyze a few smart contracts and by the end of the session, you will know how to read, analyze, and go off to build your own smart contracts.
A dapp for drawing and minting custom NFTs using IPFS & Openzeppelin
Lucky Six, a Solidity-based game, integrates Chainlink VRF, Chainlink Keepers, UUPS Proxies, Reentrancy Guard, Ownable and Pausable. Users can enter a combination and value for lottery participation.
NFT project template implemented with Brownie, Pinata, Infura and more
Liquid-Staking-Decentralized is a decentralized application (DApp) that enables users to stake their assets on a proof-of-stake (PoS) blockchain.
Demonstrates the use a ERC721 contract to encapsulate a raffle ticket and a contract to manage a raffle.
Made a project using foundry,solidity,react and ipfs that mints an nft when image is uploaded to it, people can vote for these minted nfts and the highest number of votes to nft is the winner and the winning amount goes to the winner.
Web 3.0 based Domain marketplace on Solidity, Ethereum, Hardhat, React
Um projeto completo de Web3 com smart contracts, API e interface para mintagem de tokens ERC20 na rede Polygon. Esse projeto visa ser uma brincadeira séria, podendo ou não se desenvolver em projetos paralelos. Para adquirir tokens GOHO acesso nossa plataforma abaixo: