Free Open Data APIs
Discover free open data APIs for your next project.
All Open Data APIs
3518F
Unofficial US Federal Government API Development
API Setu
An Indian Government platform that provides a lot of APIS for KYC, business, education & employment
Archive.org
The Internet Archive
Black History Facts
Contribute or search one of the largest black history fact databases on the web
BotsArchive
JSON formatted details about Telegram Bots available in database
Callook.info
United States ham radio callsigns
CARTO
Location Information Prediction
CollegeScoreCard.ed.gov
Data on higher education institutions in the United States
Enigma Public
Broadest collection of public data
French Address Search
Address search via the French Government
GENESIS
Federal Statistical Office Germany
Joshua Project
People groups of the world with the fewest followers of Christ
Kaggle
Create and interact with Datasets, Notebooks, and connect with Kaggle
LinkPreview
Get JSON formatted summary with title, description and preview image for any requested URL
Lowy Asia Power Index
Get measure resources and influence to rank the relative power of states in Asia
Microlink.io
Extract structured data from any website
Nasdaq Data Link
Stock market data
Nobel Prize
Open data about nobel prizes and events
Open Data Minneapolis
Spatial (GIS) and non-spatial city data for Minneapolis
openAFRICA
Large datasets repository of African open data
OpenCorporates
Data on corporate entities and directors in many countries
OpenSanctions
Data on international sanctions, crime and politically exposed persons
PeakMetrics
News articles and public datasets
Recreation Information Database
Recreational areas, federal lands, historic sites, museums, and other attractions/resources(US)
Scoop.it
Content Curation Service
Socrata
Access to Open Data from Governments, Non-profits and NGOs around the world
Teleport
Quality of Life Data
Umeå Open Data
Open data of the city Umeå in northen Sweden
Universities List
University names, countries and domains
University of Oslo
Courses, lecture videos, detailed information for courses etc. for the University of Oslo (Norway)
UPC database
More than 1.5 million barcode numbers from all around the world
Urban Observatory
The largest set of publicly available real time urban data in the UK
Wikidata
Collaboratively edited knowledge base operated by the Wikimedia Foundation
Wikipedia
Mediawiki Encyclopedia
Yelp
Find Local Business
FAQ
What are open data APIs?
Open Data APIs are programming interfaces that allow developers to integrate open data-related functionality into their applications, providing access to data and features specific to the open data domain.
Are these open data APIs really free?
Yes — all APIs listed here offer free tiers or are completely free to use. Some may have usage limits or require registration. Always check the specific API's documentation for detailed terms.
How do I get started with open data APIs?
Choose an API that fits your needs, then visit its documentation page. Most APIs require an API key obtained through free registration. Follow the integration guides and examples provided.