A list of all Google APIs, designed to answer the question "What are the best APIs for Google?" All major Web APIs and mobile API resources related to Google, including those formatted in XML or JSON and those for use with iOS and the iPhone, are featured on this list. An API (or Application Programming Interface) is a method software applications and programs use to interact with one another, and share data, rules, settings or specifications. APIs interact with applications, libraries, operating systems and more, and are often used for sharing or embedding content. Some of the most popular APIs used around the modern Web are the Google API, the Twitter API, Wikipedia's API and the Ruby API.
...more
1
465Google Client Authentication
Account authentication for installed applications2
448Google Issue Tracker Data
View and update issues on Google Project Hosting3
244Google Directions
Driving directions web service4
192Google Gears Geolocation
User geographical positioning service5
237Google Documents List
Document management services6
162Google AJAX Language
Text translation service7
120Google Maps Flash
Flash-based mapping service8
2213Google Diacritize
Language pronunciation tool9
2213Google Distance Matrix
Travel distance based on Google Maps10
188Google Desktop
Desktop search and gadgets11
145Google Earth
Mapping and 3D geo visualization12
168Google Fusion Tables
Data sharing and visualization platform13
168Google Code Search
Code search service14
135Google Health
Health data service15
147Google Finance Portfolio
Investing portfolio services16
1712Google Geocoding
Google Maps Geocoding Service17
125Google Homepage
Portal gadgets18
102Google APIs Discovery
Google API directory service19
148Google Friend Connect
Social network service20
148Google Gmail OAuth
EMail service21
103Google OpenID
OpenID login for Google account users22
82Google Storage
Online storage service23
1613Google Contacts
Contact list management24
128Google Books
Book search services25
128Google Font
Web font service