Curated collection of blockchain & cryptocurrency resources.

A set of icons for all the main cryptocurrencies and altcoins, in a range of styles and sizes.

Python-based Bitcoin and alt-coin utility library.

A cryptocurrency arbitrage opportunity calculator. Over 800 currencies and 50 markets.

[UNMAINTAINED] Ruby library to query market data from cryptocurrency exchanges (https://www.coingecko.com)

piWallet is an open source program developed by Johnathan Martin that allows almost anyone to setup an online web wallet for a cryptocurrency.

Useful library for validation of Bitcoin, Litecoin, Ethereum and other cryptocoin addresses

Profit Trailer Feeder Full Build with Settings

Denarius [$D] is a PoW/PoS Hybrid Cryptocurrency with Tribus a new PoW Hashing Algo built specifically for D, one of a kind hybrid masternodes called Fortuna Stakes, atomic swaps, staking, mining, IPFS, optional Native Tor and I2P, and much more!

Lightweight, open-source, universal paper wallet generator

The simple script for parsing Bitcoin blockchain.

Java library for adding altcoin support to bitcoinj

python-bitcointx is a python3 library providing an easy interface to the Bitcoin data structures

All the cryptocurrency icons available on coinmarketcap.com

ᕲ Duino-Coin is a cryptocurrency that can be mined with Arduino boards.

Open source Bitcoin and Altcoin portfolio / trades logging and tracking. Including Profit / Loss calculations, Price Charts and realtime updates.

Resources for trading Bitcoin and Altcoins

CoinGecko PHP API client for coingecko.com (V3)

provides crypto currency specific information such as key prefixes, DNS seeds, bip32, bip44, etc, available in JSON format.

PHP Altcoin/Bitcoin Data Explorer

Provides a Bitcoin/Altcoins Payment Gateway for Paid Memberships Pro 1.8+. Direct Integration on your website, no external payment pages opens. Accept Bitcoin, Litecoin, Dogecoin, Paycoin, Reddcoin, Speedcoin, Darkcoin, Potcoin, Feathercoin, Vertcoin, Vericoin payments online. You will see the bitcoin/altcoin payment statistics in one common table on your website. No Chargebacks, Global, Secure. All in automatic mode.

Page to keep track of value & profits of a portfolio of cryptocurrency (based on Coinmarketcap, Bitfinex and Binance)

Paper Wallet Generator for Bitcoin & Altcoins

Technical Analysis Indicators Collection

NemosMiner multi algo profit switching NVIDIA/CPU miner

Help us populate the many altcoins for our atomic swap protocol!

AltStalker.com a crypto currency tracking and portfolio site

A lightweight Python library for tracking cryptocurrency market

Ruby library to query market data from cryptocurrency exchanges

Cryptocurrencies price data collection, price tickers, signals notifications, charts and automatic trading.