[Optimism] Learn to build an Optimistic app!
FxPortal for Polygon (Previously Matic) chain. No mapping. Seamless.
[Optimism] Smart Contracts
Powers fast, private, decentralized applications
The "Yellow Paper": Ethereum's formal specification
🦄 An open source interface for the Uniswap protocol
The Ethereum Improvement Proposal repository
The Ethereum Wiki
The essential Ethereum information hub.
ZeppelinOS multi-package repository
A python interface for interacting with the Ethereum blockchain and ecosystem.
Core Ethereum Smart Contracts for Polymath - The Securities Token Platform
New experimental programming language
Security analysis tool for Ethereum smart contracts
:warning: Deprecated repo in favour of https://github.com/zeppelinos/zos
Casper contract, and related software and tests
OpenZeppelin, a framework to build secure smart contracts on Ethereum
XChange is a Java library providing a streamlined API for interacting with 50+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.