AltAPIs Blog

Open Data APIs

57 API records with directory-reported descriptions, access facts, and source links.

18F

Unofficial US Federal Government API Development

Open Data · No auth · HTTPS not confirmed

AcreLens

Land suitability scoring API for any US property: off-grid, rural, recreational, investment

Open Data · API key · HTTPS

API Setu

An Indian Government platform that provides a lot of APIS for KYC, business, education & employment

Open Data · No auth · HTTPS

Archive.org

The Internet Archive

Open Data · No auth · HTTPS

Black History Facts

Contribute or search one of the largest black history fact databases on the web

Open Data · API key · HTTPS

BotsArchive

JSON formatted details about Telegram Bots available in database

Open Data · No auth · HTTPS

BTU Graph

Source-reviewed energy company knowledge graph and directory exports

Open Data · No auth · HTTPS

Callook.info

United States ham radio callsigns

Open Data · No auth · HTTPS

CARTO

Location Information Prediction

Open Data · API key · HTTPS

CuttingToolsAI

Cross-brand carbide insert grade equivalents by ISO application class

Open Data · No auth · HTTPS

Enigma Public

Broadest collection of public data

Open Data · API key · HTTPS

EOSL

Hardware end-of-sale and end-of-service-life dates by part number, source-linked

Open Data · No auth · HTTPS

GENESIS

Federal Statistical Office Germany

Open Data · OAuth · HTTPS

InfraNode

Unified German city open data: weather, air quality, EV chargers, transit, demographics

Open Data · API key · HTTPS

i6eal Open AI Data

Open datasets on AI policy, regulation and public-sector adoption in Germany and the EU

Open Data · No auth · HTTPS

Joshua Project

People groups of the world with the fewest followers of Christ

Open Data · API key · HTTPS

K-Data Gate

Korean market data: K-beauty/K-food products, Naver trends, stocks, real estate, weather

Open Data · API key · HTTPS

Kaggle

Create and interact with Datasets, Notebooks, and connect with Kaggle

Open Data · API key · HTTPS

LinkPreview

Get JSON formatted summary with title, description and preview image for any requested URL

Open Data · API key · HTTPS

LottoLens PH

Fixed Philippine PCSO historical results and normal draw schedules

Open Data · No auth · HTTPS

Lowy Asia Power Index

Get measure resources and influence to rank the relative power of states in Asia

Open Data · No auth · HTTPS

Microlink.io

Extract structured data from any website

Open Data · No auth · HTTPS

MostExpensiveWatches

Documented luxury watch auction records, live listings, valuations and price indices

Open Data · No auth · HTTPS

ModelPartFinder Error Codes

Lookup appliance and equipment error codes by brand and code, with recommended replacement parts

Open Data · No auth · HTTPS

Nobel Prize

Open data about nobel prizes and events

Open Data · No auth · HTTPS

Onyx Bazaar

Free public leaderboard of x402 paid HTTP services indexed from Coinbase CDP discovery API

Open Data · No auth · HTTPS

Open Data Minneapolis

Spatial (GIS) and non-spatial city data for Minneapolis

Open Data · No auth · HTTPS

Open Scholarships

Free, openly-licensed directory of US scholarships and student aid from official sources

Open Data · No auth · HTTPS

openAFRICA

Large datasets repository of African open data

Open Data · No auth · HTTPS

OpenCorporates

Data on corporate entities and directors in many countries

Open Data · API key · HTTPS

OpenSanctions

Data on international sanctions, crime and politically exposed persons

Open Data · No auth · HTTPS

Pan Africa Data

Macroeconomic and subnational income distribution data for all 54 African countries

Open Data · API key · HTTPS

PayCrunch

US wages for 1,008 occupations and by state, from BLS OEWS May 2025, static JSON, CC BY 4.0

Open Data · No auth · HTTPS

PeakMetrics

News articles and public datasets

Open Data · API key · HTTPS

PublicDataHub

US public schools, hospitals and federal agency budgets as JSON/CSV, with provenance

Open Data · No auth · HTTPS

Recreation Information Database

Recreational areas, federal lands, historic sites, museums, and other attractions/resources(US)

Open Data · API key · HTTPS

Registrum

UK company data: profiles, directors, PSC, iXBRL-parsed financials, ECCTA status

Open Data · API key · HTTPS

Scoop.it

Content Curation Service

Open Data · API key · HTTPS not confirmed

SlashYear

86,902 historical events as JSON, each quoted from a cited Wikipedia revision

Open Data · No auth · HTTPS

Socrata

Access to Open Data from Governments, Non-profits and NGOs around the world

Open Data · OAuth · HTTPS

Statistics of the World

Economic data for 218 countries — GDP, population, inflation, and 440+ indicators from IMF and World Bank

Open Data · No auth · HTTPS

Teleport

Quality of Life Data

Open Data · No auth · HTTPS

Tilth

Free daily UK fertiliser price index across nine grades, CC BY 4.0 licensed

Open Data · No auth · HTTPS

Umeå Open Data

Open data of the city Umeå in northen Sweden

Open Data · No auth · HTTPS

Universities List

University names, countries and domains

Open Data · No auth · HTTPS

University of Oslo

Courses, lecture videos, detailed information for courses etc. for the University of Oslo (Norway)

Open Data · No auth · HTTPS

UPC database

More than 1.5 million barcode numbers from all around the world

Open Data · API key · HTTPS

Urban Observatory

The largest set of publicly available real time urban data in the UK

Open Data · No auth · HTTPS not confirmed

Voidly

Internet censorship measurements, incidents, and ISP-level blocking data across 126 countries

Open Data · No auth · HTTPS

Warnely

Composite travel-safety scores for 180 countries (FCDO + US State + GPI + WGI + live incident wire), OpenAPI 3.1 spec, CC BY 4.0

Open Data · No auth · HTTPS

Wikidata

Collaboratively edited knowledge base operated by the Wikimedia Foundation

Open Data · OAuth · HTTPS

Wikipedia

Mediawiki Encyclopedia

Open Data · No auth · HTTPS

Yelp

Find Local Business

Open Data · OAuth · HTTPS