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#web3js
1,151 repositories
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Mastering Ethereum: 2nd Edition, by Andreas M. Antonopoulos, Gavin Wood, Carlo Parisi, Alessandro Mazza, Niccolò Pozzolini
Collection of comprehensive TypeScript libraries for Interaction with the Ethereum JSON RPC API and utility functions.
The contents of this repository will help you launch a career in Blockchain development. How to deploy Smart contracts on Ethereum, build DApps, DeFi, DAO, NFT and Token protocol.
Cryptographic javascript-functions for ethereum and tutorials to use them with web3js and solidity
Full featured library for Ethereum interaction with the JSON RPC API in swift. Native ABI parsing and smart contract interactions.
Blockchain Books
Simple Ethereum Voting dapp using Truffle framework
A starter boilerplate for an Ethereum dapp using web3.js v1.0, truffle, react, and parity
Solana JavaScript/TypeScript SDK - client library for interacting with the Solana blockchain
A NFT marketplace that enables the creation, sale, and purchase of digital art as NFTs.
Open-source Solana dApp template with Anchor program, TypeScript client, and Next.js UI.
Flash swap liquidation bot for compound.finance + flashbots
Node.js with Web3 javascript examples for getting basic information (transactions, balances, network stats, and tokens) from the Ethereum blockchain.
Ethereum TypeScript Client Library - for perfect types and tiny builds.
NFT based Photo MarketPlace is the peer-to-peer Marketplace for buy and sell of photos which was uploaded by users.
Blockchain transactions tracker example for ETH and ERC20 tokens made with web3.js
Generation and validation of certificates using ethereum blockchain
:tractor: :ear_of_rice: A DeFi app, which provides staking & farming functions are deploy-able with a website, for yield farming.
A simple demo to show case how Alchemy's NFT API works.
Dapp that implements a "fake-stake" mechanism on any ERC20 token
An OpenZeppelin starter kit containing React, OpenZeppelin SDK & OpenZeppelin Contracts.
All-in-one PumpFun Bundler suite featuring PumpFun Bundler (20+ wallets), MEV bot protection, high-frequency trading bot, Solana token creator, jito bundle, multi wallet management, live price tracking, custom RPC nodes, anti rug tools, and instant token launches.
Electronic Voting System using Blockchain and Smart Contracts
cloud-cryptographic-wallet is a set of packages to connect crypto libraries with key management systems of various cloud services. This set of packages allows you to perform signatures and issue transactions without the need to manage private keys.
This is a smart contract that enable a user to farm yield by staking LP tokens into a NFT pool. (on BSC testnet)
The Shared Royalty Non-Fungible Token (a.k.a Bootleg) is an open source project started by the ConsenSys Web3Studio team. The purpose of the Shared Royalty Non-Fungible Token (SRNFT) is to make any royalty business model, from the oil and gas industry to entertainment, easy to manage with the Ethereum blockchain .
Client app for Artion, a global NFT marketplace on Fantom Opera.
Create a Token in less than a minute with the most trusted Smart Contract Generator for ERC20 and BEP20. No login. No setup. No coding required.
Ethererum Blockchain Explorer to show the details of the blocks and transactions via web3- Realtime Price Ticker, etc.
The project aims to identify crypto honeypots in many chains.
以太坊DApp开发入门教程，涵盖以太坊去中心化应用相关基础内容：区块链、智能合约、truffle框架、ganache仿真器、Solidity语言、solc编译器、web3js库、通证（代币）发行等，手把手地教大家构建一个区块链投票系统。
This is an extension of the "Hello World" project for Ethereum and Web3.js which allows you to query the ERC-20 token balance of an Ethereum address.
a sample application with login function using MetaMask, built with Echo + Vue.js
Tokenized-Carbon Credit Marketplace☘️ (on Polygon/Matic)
Builderz Solana dApp Scaffold (Nextjs14, App Dir, Typescript, TailwindCSS, MaterialUI, web3.js, ThemeSwitch (Dark/Light), Sonner Toast Notifications, Modal & Drawer)
The project uses blockchain and smart contracts to let individuals manage and secure their health data. Its goal is to empower people to control their health information, communicate better with healthcare providers, and drive innovation in healthcare.
Projects of Udacity Blockchain Developer Nanodegree
Create a link to your ERC20 Token or an embeddable Widget for your Website. Add your Token to DApp browsers or MetaMask.
Enter the world of real-time investing
Virtual Power Plant dApp - a decentralized demo dApp of a virtual power plant that onboards battery assets, charges and discharges them based on spot prices, and allows investors to earn dividends based on profits from energy trading. Built with Solidity-based smart contracts.
Storage decentralized application running on testnet for storing files metadata and IPFS protocol for uploading, sharing and downloading files of any kind.
Node.js programs for monitoring transactions to Ethereum addresses
Ethereum based land registry and transaction solution
An easy to use and reliable library that provides one line access to Web3 API.
To ensure the identification and traceability of real products throughout the supply chain, this project is the first to propose a fully functional blockchain system to prevent product counterfeiting.
Create and Deploy a Front Run Bot Sol Contract on BSC ERC-20 PancakeSwap
Solana Sniper Bot with snipe management features such as creating snipe, editing snipe, auto snipe, etc.
Keywords: Blockchain technology, Cryptography, Educational records, smart contract, secure storage and sharing.
This is a sample project for my blog post with the title "Build a Real-World dApp With React, Solidity, and Web3.js". It shows to get started with blockchain development.
create wallet, token balance, token transfer and estimateGas
A collaborative and collective pool farming system with built in blockchain based self financing system to help farmers become self-reliant. | ᴘʀᴏᴏꜰ ᴏꜰ ᴄᴏɴᴄᴇᴘᴛ
Decentralized Medical Supply Chain (DApp) built on Ethereum blockchain.
A decentralized social network deployed on ethereum network where you can share your content freely as there is no central authority to control and also can earn cryptos by keeping the platform free from abusive content
Source code for Crescendo NFT Marketplace, music distribution on Binance Smart Chain.
Ethereum and Web3.js “Hello World”: Get the ETH Balance of an Ethereum Address
The insurance application built on top of Ethereum using Truffle
The Bot automatically Listens to Newly Listed Coins on PanCakeSwap(BSC Chain) and Automatically Buys them, listens to Price Variations and SWAPS Automatically(At a Profit) back to BNB
Watch any Ethereum address with 🦉 eth-owl to receive real-time callbaks to your webhooks (or emails) for each incoming/outgoing transaction
🌱 Ethereum provider solution for Dapp&Wallets, 🏷 If you have good suggestions, please submit issues
In the healthcare system, there is a lot of patient data that is stored and this data needs to be safe and private. With blockchain the data is visible to everyone and hence solves key issues like trust in a network with its ensured transparency of data in a blockchain network. Blockchain provides enhanced security where every transaction recorded needs to be agreed upon according to the consensus method. Blockchain networks are also immutable which means the data, once written, cannot be reverted by any means. All these features of blockchain guarantees the data to be secure and authentic but it also takes away the privacy any user would want in any network. Ability to provide limited access and the right to delete all information of the user is almost next to impossible in any blockchain network. Blockchain is a decentralised network but by using a centralised system along with the blockchain we can ensure true privacy while taking all the benefits of blockchain network by using the method of two way encryption. So this paper states a method to achieve privacy and securely store the data (patient data) in a blockchain network using a centralised system to provide privacy to its users while having all the features of a blockchain network such as transparency, security, data immutability and consensus.
Build an DApp using react, redux, saga, truffle, metamask
Module that makes it possible to work with Ethereum JavaScript API with NestJS
🐙 Solana trading bot suite for precise execution and smart volume control, integrating with Raydium, PumpFun, Meteora, and more for automated market strategies.