City, Toronto Open Data
GovernmentToronto (CA) City Open Data.
City, New York Open Data
GovernmentNew York (US) City Open Data.
City, Nantes Open Data
GovernmentNantes(FR) City Open Data.
City, Lviv
GovernmentLviv(UA) City Open Data.
City, Helsinki
GovernmentHelsinki(FI) City Open Data.
City, Gdynia
GovernmentGdynia (PL) City Open Data.
City, Gdańsk
GovernmentGdańsk (PL) City Open Data.
City, Berlin
GovernmentBerlin(DE) City Open Data.
City Bikes
Sports & FitnessCity Bikes around the world.
Citi
FinanceAll Citigroup account and statement data APIs.
CircleCI
Continuous IntegrationAutomate the software development process using continuous integration and continuous delivery.
Ciprand
DevelopmentSecure random string generator.
Church Calendar
CalendarCatholic liturgical calendar.
chucknorris.io
EntertainmentJSON API for hand curated Chuck Norris jokes.
Chronicling America
NewsProvides access to millions of pages of historic US newspapers from the Library of Congress.
Chomp
Food & DrinkData about various grocery products and foods.
Chinese Text Project
DictionariesOnline open-access digital library for pre-modern Chinese texts.
Chinese Character Web
DictionariesChinese character definitions and pronunciations.
Chess.com
Games & ComicsChess.com read-only REST API.
CheapShark
Games & ComicsSteam/PC Game Prices and Deals.
Charity Search
BusinessNon-profit charity data.
Chainpoint
BlockchainChainpoint is a global network for anchoring data to the Bitcoin blockchain.
Chainlink
BlockchainBuild hybrid smart contracts with Chainlink.
Cep.la
GeocodingBrazil RESTful API to find information about streets, zip codes, neighborhoods, cities and states.
Censys
SecuritySearch engine for Internet connected host and devices.
Census.gov
GovernmentThe US Census Bureau provides various APIs and data sets on demographics and businesses.
CDNJS
DevelopmentLibrary info on CDNJS.
Cats
AnimalsPictures of cats from Tumblr.
Catalogopolis
VideoDoctor Who API.
Cataas
AnimalsCat as a service (cats pictures and gifs).