Coinwink - Crypto alerts, watchlist and portfolio tracking app for Bitcoin, Ethereum, and other 3500+ crypto coins and tokens
Courseroot - Biggest online course database on the web
CoinMarketCal - All crypto events that help crypto traders at one place
Alcamy - Free, open self-learning platform. Learn & teach anything.
Cryptorch API - Cryptorch API is an AI-powered machine learning utility that is used in forecasting the prices for various cryptocurrencies from Bitcoin to BitTorrent.
CurrencyStack - A free modern currency data API for fintech apps.