Nasdaq Data Link API alternatives

The source for financial, economic, and alternative datasets, serving investment professionals. If it doesn't fit your project, here are the 10 best free Open Data APIs to use instead in 2026, out of 77 in the directory.

For reference, Nasdaq Data Link API: HTTPS.

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
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 ?
10
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

Nasdaq Data Link API vs alternatives

Nasdaq Data Link API compared with its alternatives
API	API key	HTTPS	CORS	Uptime	Response	Rating
Nasdaq Data Link	Required	Yes	Unknown	Up	797 ms	Not rated
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

Nasdaq Data Link API alternatives FAQ

What is the best free alternative to the Nasdaq Data Link API in 2026?

The top-ranked free alternatives to the Nasdaq Data Link API are Microlink.io API, OpenSanctions API and PayCrunch API, all in the Open Data category. Rankings combine access (API key, HTTPS, CORS), daily uptime checks and developer ratings.

Is there a Nasdaq Data Link API alternative that doesn't need an API key?

Yes: Microlink.io API, OpenSanctions API and PayCrunch API work without an API key, unlike the Nasdaq Data Link API, which uses apiKey authentication.

Is there a Nasdaq Data Link API alternative I can call from the browser?

Microlink.io API, OpenSanctions API and PayCrunch API support CORS, so front-end JavaScript can call them directly.

How many Open Data APIs are similar to the Nasdaq Data Link API?

The directory lists 77 other free Open Data APIs. This page compares the top ones side by side.