Google SERP API. Most complete google search result API.
Yahoo Finance Real-time Stocks, ETFs, Futures, Crypto, Currency, World Indices market data. Real-time mirrored data from Yahoo Finance (other sources coming soon)
US Real Estate & commercial property for sale & rentals
Google Translate API
Football / soccer real-time data like league table standings, fixtures (matches by league or by date & live matches), match detail (match statistic, line-ups, head-to-head, events, commentaries), news etc.