1 – Locate and identify website visitors by IP address
Ipstack offers one of the leading IP to geolocationAPIs and global IP database services worldwide
2 – Foreign exchange rates and currency conversion.
Fixer is a simple and lightweight API for current and historical foreign exchange (forex) rates, which has real-time exchange rate data for 170 world currencies.
3 – Email Validation & Verification JSON API.
Mailboxlayer offers simple REST API measuring email deliverability, which will help you separate low-quality email addresses from real users.
4 – Live News, Headlines & Blog articles JSON API
Mediastack is a scalable JSON API delivering worldwide news,headlines, and blog articles in real-time supporting 7500+ news sources. It delivers real-time and historical data from over 50 countries and in 13 languages in a lightweight JSON format.