Fixer.io - Fixer provides a free, simple, and lightweight API for current and historical foreign exchange rates and currency conversion. The API tracks rates published daily by the European Central Bank.
Habitissimo - Habitissimo is an online platform connecting homeowners with pre-screened residential contractors, architects and interior designers.
exchangeratesapi.io - Foreign exchange rates API with currency conversion.
2x3 - La nueva forma de contratar servicios
Open Exchange Rates - Free, hourly-updated exchange rates - a simple, accurate, open-source JSON API. Free for personal use, a bargain for everybody else.
HomeSolution.net - The right tool for any home project