Public APIs Directory
A collective list of free APIs for use in software and web development.
Music
NASA data, including imagery
NASA Astrophysics Data System
Stock market data
A collection of currency exchange rates (data in XML and JSON)
Open data from Great Britain’s Electricity System Operator
Data from the US National Park Service
U.S. National Vulnerability Database
Estimate the nationality of a first name
NAVER Login, Share on NAVER, Social Plugins and more
The open API for building cool stuff with transport data
All NBA Stats DATA, Games, Livescore, Standings, Statistics