Find more libraries on JavaScript Ethereum

A JavaScript / Python / PHP cryptocurrency trading API with support for more than 100 bitcoin/altcoin exchanges

A JavaScript / Python / PHP library for cryptocurrency trading and e-commerce with support for many bitcoin/ether/altcoin exchange markets and merchant APIs. The CCXT library is used to connect and trade with cryptocurrency exchanges and payment processing services worldwide. It provides quick access to market data for storage, analysis, visualization, indicator development, algorithmic trading, strategy backtesting, bot programming, and related software engineering. It is intended to be used by coders, developers, technically-skilled traders, data-scientists and financial analysts for building trading algorithms. support for many cryptocurrency exchanges — more coming soon fully implemented public and private APIs optional normalized data for cross-exchange analytics and arbitrage an out of the box unified API that is extremely easy to integrate works in Node 10.4+, Python 3, PHP 5.4+, and web browsers 

This is the Ethereum JavaScript API which connects to the Generic JSON-RPC spec. You need to run a local or remote Ethereum node to use this library. Please read the documentation for more. 

Framework for serverless Decentralized Applications using Ethereum, IPFS and other platforms

Fast Ethereum RPC client for testing and development

Ganache CLI, part of the Truffle suite of Ethereum development tools, is the command line version of Ganache, your personal blockchain for Ethereum development. Ganache CLI uses ethereumjs to simulate full client behavior and make developing Ethereum applications faster, easier, and safer. It also includes all popular RPC functions and features (like events) and can be run deterministically to make development a breeze. 

🏗 forkable Ethereum dev stack focused on fast product iterations 

🌈‒ the Ethereum wallet that lives in your pocket 

the Ethereum wallet that lives in your pocket!. 📲️ Available on the iOS App Store. 🤖 Android Beta available on Google Play Store. 🐦️ Follow us on Twitter. 

Ethereum.org is a primary online resource for the Ethereum community.

The Proof of Attendance Protocol is a dapp that distributes badges in the form of ERC-721 tokens to prove you participated in an event. More on POAPs. 

A tool for creating a local blockchain for fast Ethereum development.

This repo contains Solidity smart contract code for simple, standards-compliant tokens on Ethereum. Adhering to standards allows other contract developers to easily incorporate your token into their applications. The repo currently implements EIP20 tokens, and more may be added in the future. 

Distributed Application Starter: Vue front-end, Ethereum / IPFS Backend

Create Ethereum-powered apps with one command

If you've previously installed create-eth-app globally via yarn global add create-eth-app, we recommend you uninstall the package using yarn global remove create-eth-app and use the yarn create eth-app shorthand to ensure that you use the last version. Then open http://localhost:3000/ to see your app. When you’re ready to deploy to production, create a minified bundle with yarn run react-app:build. 

Nightfall protocols for private transactions on the Ethereum blockchain using zk-snarks

Nightfall integrates a set of smart contracts and microservices, and the ZoKrates zk-snark toolkit, to enable standard ERC-20 and ERC-721 tokens to be transacted on the Ethereum blockchain with complete privacy. It is an experimental solution and still being actively developed. We decided to share our research work in the belief that this will speed adoption of public blockchains. This is not intended to be a production-ready application and we do not recommend that you use it as such. If it accelerates your own work, then we are pleased to have helped. We hope that people will feel motivated to contribute their own ideas and improvements. The Whitepaper for technical details on the protocols and their application herein. contributions.md to find out how to contribute code. limitations.md to understand the limitations of the current code. license.md to understand how we have placed this code completely in the public domain, without restrictions (but note that Nightfall makes use of other open source code which does apply licence conditions). UI.md to learn how to drive the demonstration UI and make transactions. SECURITY.md to learn about how we handle security issues. 

Collectible 8-bit characters on the Ethereum blockchain.

CryptoPunks are 10,000 unique collectible characters with proof of ownership stored on the Ethereum blockchain. No two are exactly alike, and each one of them can be officially owned by a single person as managed and verified by a contract running on the Ethereum blockchain. You can see which punks are still available along with some more general information over at https://www.larvalabs.com/cryptopunks. This repo contains the Ethereum contract used to manage the Punks, a verifiable image of all the punks, and a unit test to verify the contract's functionality. 

EtherEx is an open source, fully transparent, next generation decentralized exchange built on Ethereum.

This repository contains the source code that runs the exchange on Ethereum as a set of contracts, along with the UI, tests, tools and documentation. 

A highly optimised, light-weight JS utility for Ethereum.

A simple module for building dApps and applications that use Ethereum. Please see our complete user-guide for more information. 