Free Open Data APIs with no API key

53 Open Data APIs that need no API key, account or credit card. 35 of them also allow CORS, so you can call them straight from browser JavaScript. Listed by uptime and ease of use.

1
Microlink.io API
Online · 378 ms
Extract structured data from any website.
- No API key needed
- Fast: 378 ms response
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
2
OpenSanctions API
Online · 343 ms
Data on international sanctions, crime and politically exposed persons.
- No API key needed
- Fast: 343 ms response
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
3
PayCrunch API
Online · 278 ms
US wages for 1,008 occupations and by state, from BLS OEWS May 2025, static JSON, CC BY 4.0.
- No API key needed
- Fast: 278 ms response
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
4
221 API
Online · 527 ms
Senegal reference data: public holidays, mobile operators, banks, communes, legal forms.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
5
API Setu API
Online · 1199 ms
An Indian Government platform that provides a lot of APIS for KYC, business, education & employment.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
6
Big Data Explained API
Online · 788 ms
Cloud data warehouse list prices, read daily from AWS and Azure pricing APIs, with price history.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
7
BTU Graph API
Online · 839 ms
Source-reviewed energy company knowledge graph and directory exports.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
8
CollegeCalcAI API
Online · 531 ms
US college admission chance estimates and admissions data for 1,100+ colleges.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
9
EOSL API
Online · 607 ms
Hardware end-of-sale and end-of-service-life dates by part number, source-linked.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
10
i6eal Open AI Data API
Online · 624 ms
Open datasets on AI policy, regulation and public-sector adoption in Germany and the EU.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
11
Kvartiry-Phuket API
Online · 748 ms
Russian-language Phuket real estate guides, asking prices, condo assessment rates, weather, beaches.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
12
MostExpensiveWatches API
Online · 776 ms
Documented luxury watch auction records, live listings, valuations and price indices.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
13
Nobel Prize API
Online · 653 ms
Open data about nobel prizes and events.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
14
ProductGuru API
Online · 676 ms
Consumer product-safety recall notices from 11 government registers, looked up by barcode (EAN/GTIN).
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
15
PublicDataHub API
Online · 532 ms
US public schools, hospitals and federal agency budgets as JSON/CSV, with provenance.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
16
SlashYear API
Online · 701 ms
Dated historical events as JSON, each quoted from a cited Wikipedia revision.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
17
StackRates API
Online · 762 ms
VPS and cloud server prices from 46 providers, read daily from their own pricing pages and APIs.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
18
Statistics of the World API
Online · 893 ms
Economic data for 218 countries — GDP, population, inflation, and 440+ indicators from IMF and World Bank.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
19
StatOrigin API
Online · 672 ms
Industry statistics, each traced to its primary source with a verbatim quote, CC BY 4.0.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
20
The Deploy Log API
Online · 640 ms
1,000+ AI deployments, each linked to the publisher's own page, JSON and CSV, CC BY 4.0.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
21
Tickerz API
Online · 1115 ms
Daily indexes of real-world activity from public data, each reading timestamped in Bitcoin.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
22
Tilth API
Online · 1094 ms
Free daily UK fertiliser price index across nine grades, CC BY 4.0 licensed.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
23
Verified Handles API
Online · 535 ms
Official social media handles and identifiers of 155,000+ notable people and organisations.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
24W
w14n API
Online · 548 ms
Brazilian company profiles by CNPJ, CNAE establishment counts and municipality coordinates.
- No API key needed
- Returns JSON at its URL
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
25
CollegeScoreCard.ed.gov API
Online · 174 ms
Data on higher education institutions in the United States.
- No API key needed
- Fast: 174 ms response
- HTTPS
No authHTTPSCORS ?
26
CuttingToolsAI API
Online · 672 ms
Cross-brand carbide insert grade equivalents by ISO application class.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
27
Edgepedia API
Online · 516 ms
Search and read Edgepedia, a free and growing encyclopedia with citations.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
28
LottoLens PH API
Online · 424 ms
Fixed Philippine PCSO historical results and normal draw schedules.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
294
49 Gallery Historical Data API
Online · 822 ms
Normalized historical records and 25 daily-updated reference series.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
30
Band Atlas API
Online · 1860 ms
Cellular IoT bands, 2G/3G sunsets and device compatibility for 46 countries.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
31
HousingFeed API
Online · 2138 ms
US rental listings from property managers' own websites, verified weekly.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
32
ModelPartFinder Error Codes API
Online · 1575 ms
Lookup appliance and equipment error codes by brand and code, with recommended replacement parts.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
33O
Open Scholarships API
Online · 945 ms
Free, openly-licensed directory of US scholarships and student aid from official sources.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
34
Umeå Open Data API
Online · 1729 ms
Open data of the city Umeå in northen Sweden.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
35
Vuntum API
Online · 2245 ms
Sourced, dated facts on consumer robots and physical AI, licensed CC BY 4.0.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
36
BotsArchive API
Online · 851 ms
JSON formatted details about Telegram Bots available in database.
- No API key needed
- HTTPS
No authHTTPSCORS ?
37
Callook.info API
Online · 933 ms
United States ham radio callsigns.
- No API key needed
- HTTPS
No authHTTPSCORS ?
38
Lowy Asia Power Index API
Online · 1037 ms
Get measure resources and influence to rank the relative power of states in Asia.
- No API key needed
- HTTPS
No authHTTPSCORS ?
39O
Onyx Bazaar API
Online · 1017 ms
Free public leaderboard of x402 paid HTTP services indexed from Coinbase CDP discovery API.
- No API key needed
- Returns JSON at its URL
- HTTPS
No authHTTPSCORS ?
40
Universities List API
Online · 661 ms
University names, countries and domains.
- No API key needed
- HTTPS
No authHTTPSCORS ?
41
Wikipedia API
Online · 449 ms
Mediawiki Encyclopedia. A free open data API by MediaWiki.
- No API key needed
- HTTPS
No authHTTPSCORS ?
42
CityAlert API
Online · 852 ms
Live public-safety incidents: crime, fire, disaster, weather and news from 650+ official feeds.
- No API key needed
- HTTPS
No authHTTPSNo CORS
43
CoworkingView API
Online · 676 ms
Coworking spaces and offices in 63 European and Gulf cities with operator-published prices.
- No API key needed
- HTTPS
No authHTTPSNo CORS
44
DevLifeCheck API
Online · 903 ms
Security-update end dates, recalls and evidence for 1,300+ phones, tablets, Chromebooks and routers.
- No API key needed
- HTTPS
No authHTTPSNo CORS
45
openAFRICA API
Online · 774 ms
Large datasets repository of African open data.
- No API key needed
- HTTPS
No authHTTPSCORS ?
46
Voidly API
Online · 626 ms
Internet censorship measurements, incidents, and ISP-level blocking data across 126 countries.
- No API key needed
- HTTPS
No authHTTPSNo CORS
47
University of Oslo API
Online · 466 ms
Courses, lecture videos, detailed information for courses etc. for the University of Oslo (Norway).
- No API key needed
- HTTPS
No authHTTPSCORS ?
48
Archive.org API
Online · 1593 ms
This describes the resources that make up the official Archive.org API v1.
- No API key needed
- HTTPS
No authHTTPSNo CORS
49
Open Data Minneapolis API
Online · 854 ms
Spatial (GIS) and non-spatial city data for Minneapolis.
- No API key needed
- HTTPS
No authHTTPSNo CORS
50
Urban Observatory API
Online · 673 ms
The largest set of publicly available real time urban data in the UK.
- No API key needed
No authNo HTTPSNo CORS
51
Warnely API
Last check failed
Composite travel-safety scores for 180 countries (FCDO + US State + GPI + WGI + live incident wire), OpenAPI 3.1 spec, CC BY 4.0.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
52
French Address Search API
Last check failed
Address search via the French Government.
- No API key needed
- HTTPS
No authHTTPSCORS ?
53T
Teleport API
Last check failed
Quality of Life Data. A free open data API by teleport.org.
- No API key needed
- HTTPS
No authHTTPSCORS ?

Keyless Open Data APIs compared

Open Data APIs with no API key
API	API key	HTTPS	CORS	Uptime	Response	Rating
Microlink.io	No	Yes	Yes	Up	378 ms	Not rated
OpenSanctions	No	Yes	Yes	Up	343 ms	Not rated
PayCrunch	No	Yes	Yes	Up	278 ms	Not rated
221	No	Yes	Yes	Up	527 ms	Not rated
API Setu	No	Yes	Yes	Up	1199 ms	Not rated
Big Data Explained	No	Yes	Yes	Up	788 ms	Not rated
BTU Graph	No	Yes	Yes	Up	839 ms	Not rated
CollegeCalcAI	No	Yes	Yes	Up	531 ms	Not rated
EOSL	No	Yes	Yes	Up	607 ms	Not rated
i6eal Open AI Data	No	Yes	Yes	Up	624 ms	Not rated
Kvartiry-Phuket	No	Yes	Yes	Up	748 ms	Not rated
MostExpensiveWatches	No	Yes	Yes	Up	776 ms	Not rated
Nobel Prize	No	Yes	Yes	Up	653 ms	Not rated
ProductGuru	No	Yes	Yes	Up	676 ms	Not rated
PublicDataHub	No	Yes	Yes	Up	532 ms	Not rated
SlashYear	No	Yes	Yes	Up	701 ms	Not rated
StackRates	No	Yes	Yes	Up	762 ms	Not rated
Statistics of the World	No	Yes	Yes	Up	893 ms	Not rated
StatOrigin	No	Yes	Yes	Up	672 ms	Not rated
The Deploy Log	No	Yes	Yes	Up	640 ms	Not rated
Tickerz	No	Yes	Yes	Up	1115 ms	Not rated
Tilth	No	Yes	Yes	Up	1094 ms	Not rated
Verified Handles	No	Yes	Yes	Up	535 ms	Not rated
w14n	No	Yes	Yes	Up	548 ms	Not rated
CollegeScoreCard.ed.gov	No	Yes	Unknown	Up	174 ms	Not rated
CuttingToolsAI	No	Yes	Yes	Up	672 ms	Not rated
Edgepedia	No	Yes	Yes	Up	516 ms	Not rated
LottoLens PH	No	Yes	Yes	Up	424 ms	Not rated
49 Gallery Historical Data	No	Yes	Yes	Up	822 ms	Not rated
Band Atlas	No	Yes	Yes	Up	1860 ms	Not rated
HousingFeed	No	Yes	Yes	Up	2138 ms	Not rated
ModelPartFinder Error Codes	No	Yes	Yes	Up	1575 ms	Not rated
Open Scholarships	No	Yes	Yes	Up	945 ms	Not rated
Umeå Open Data	No	Yes	Yes	Up	1729 ms	Not rated
Vuntum	No	Yes	Yes	Up	2245 ms	Not rated
BotsArchive	No	Yes	Unknown	Up	851 ms	Not rated
Callook.info	No	Yes	Unknown	Up	933 ms	Not rated
Lowy Asia Power Index	No	Yes	Unknown	Up	1037 ms	Not rated
Onyx Bazaar	No	Yes	Unknown	Up	1017 ms	Not rated
Universities List	No	Yes	Unknown	Up	661 ms	Not rated
Wikipedia	No	Yes	Unknown	Up	449 ms	Not rated
CityAlert	No	Yes	No	Up	852 ms	Not rated
CoworkingView	No	Yes	No	Up	676 ms	Not rated
DevLifeCheck	No	Yes	No	Up	903 ms	Not rated
openAFRICA	No	Yes	Unknown	Up	774 ms	Not rated
Voidly	No	Yes	No	Up	626 ms	Not rated
University of Oslo	No	Yes	Unknown	Up	466 ms	Not rated
Archive.org	No	Yes	No	Up	1593 ms	Not rated
Open Data Minneapolis	No	Yes	No	Up	854 ms	Not rated
Urban Observatory	No	No	No	Up	673 ms	Not rated
Warnely	No	Yes	Yes	Down	–	Not rated
French Address Search	No	Yes	Unknown	Down	–	Not rated
Teleport	No	Yes	Unknown	Down	–	Not rated

FAQ

Are there free Open Data APIs without an API key?

Yes. 53 free Open Data APIs need no API key or sign-up, including Microlink.io API, OpenSanctions API and PayCrunch API. You can send a request straight away.

Which keyless Open Data APIs can I call from JavaScript in the browser?

35 of them also support CORS, including Microlink.io API, OpenSanctions API and PayCrunch API, so a plain fetch from a web page works.

Do APIs without a key have limits?

Usually, yes. Keyless APIs typically rate-limit by IP address, so cache responses and avoid tight loops. For production traffic, an API with a free key tier often gives higher, more predictable limits.