TypeScript SDK for the OpenSea marketplace

Example semi-fungible collectible, to demonstrate OpenSea integration for an ERC-1155 contract

Adds links to strings that look like Ethereum addresses to your favourite blockchain explorer. Adds protection against private key phishing. Offers custom site bookmarks.

Java implementation of the Tron whitepaper

cache.kitties.json - CryptoKitties (Meta) Data in JSON

List of verified mappings from Ethereum addresses to social profiles

Hardhat is a development environment to compile, deploy, test, and debug your Ethereum software.

This editor creates NFT markers for ARTOOKIT 5.x

Open-source RPG interface to the CryptoKitties platform

kittyverse library - helper classes for cattributes, trait types, traits, genes, genomes and more for cryptokitties and copycats

📚 The Token Lists specification

The Flow Emulator is a lightweight tool that emulates the behaviour of the real Flow network

Smart contracts and transactions for Topshot, the official NBA digital collectibles game on the Flow Blockchain

An Ethereum approval management tool.

An attempt to gather all that is in flux in Swift.

Chrome extension for Flow Playground

Tools for building Go applications on Flow 🌊

Flow is a fast, secure, and developer-friendly blockchain built to support the next generation of games, apps, and the digital assets that power them 🌊

FCL (Flow Client Library) - The best tool for building JavaScript (browser & NodeJS) applications on Flow 🌊

Cadence, the resource-oriented smart contract programming language 🏃‍♂️

Flow Playground front-end app 🤹‍♂️

The Fungible Token standard on the Flow Blockchain

The non-fungible token standard on the Flow blockchain

The Flow CLI is a command-line interface that provides useful utilities for building Flow applications

kittyverse library - helper classes for cattributes, trait types, traits, genes, genomes and more for cryptokitties and copycats

A modular and extensible networking stack which solves many challenges of peer-to-peer applications.

ℹ️ Uniswap v1+v2 analytics

Core and web app for Proof of Existence - the original blockchain notary service

A minimal, yet complete, python API for Etherscan.io.