Free Business APIs with no API key

13 Business APIs that need no API key, account or credit card. 5 of them also allow CORS, so you can call them straight from browser JavaScript. Listed by uptime and ease of use.

1. 1

   Legal Sandbox Georgia API

   Online · 563 ms

   Find verified legal specialists in Georgia from natural-language queries.

   • No API key needed
   • Returns JSON at its URL
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
2. 2

   Verif Entreprise FR API

   Online · 699 ms

   French company checks by SIREN: status, insolvency (BODACC), VAT (VIES); free preview.

   • No API key needed
   • Returns JSON at its URL
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
3. 3

   KontragentPro API

   Online · 719 ms

   Russian company data from state registers by INN or OGRN: profile, finances, timeline.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
4. 4T

   TradeDataHub API

   Online · 1008 ms

   U.S. contractor datasets with a free discovery API for coverage, pricing and masked previews.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
5. 5

   UGC VZ API

   Online · 602 ms

   Directory of DACH user-generated-content creators with topics, cities, rates and contact requests.

   • No API key needed
   • HTTPS

   No authHTTPSNo CORS
6. 6

   Domainsdb.info API

   Online · 1343 ms

   Access our comprehensive domain database through a powerful API.

   • No API key needed
   • HTTPS

   No authHTTPSNo CORS
7. 7

   Pick an Agency API

   Last check failed

   Search 47,000+ marketing agencies by service, location and rating.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
8. 8T

   Tenders in Hungary API

   Last check failed

   Get data for procurements in Hungary in JSON format.

   • No API key needed
   • HTTPS

   No authHTTPSCORS ?
9. 9T

   Tenders in Poland API

   Last check failed

   Get data for procurements in Poland in JSON format.

   • No API key needed
   • HTTPS

   No authHTTPSCORS ?
10. 10T

    Tenders in Romania API

    Last check failed

    Get data for procurements in Romania in JSON format.

    • No API key needed
    • HTTPS

    No authHTTPSCORS ?
11. 11T

    Tenders in Spain API

    Last check failed

    Get data for procurements in Spain in JSON format.

    • No API key needed
    • HTTPS

    No authHTTPSCORS ?
12. 12T

    Tenders in Ukraine API

    Last check failed

    Get data for procurements in Ukraine in JSON format.

    • No API key needed
    • HTTPS

    No authHTTPSCORS ?
13. 13

    markerapi

    Last check failed

    Trademark Search. A free business API by markerapi.com.

    • No API key needed

    No authNo HTTPSCORS ?

Keyless Business APIs compared

Business APIs with no API key

API	API key	HTTPS	CORS	Uptime	Response	Rating
Legal Sandbox Georgia	No	Yes	Yes	Up	563 ms	Not rated
Verif Entreprise FR	No	Yes	Yes	Up	699 ms	Not rated
KontragentPro	No	Yes	Yes	Up	719 ms	Not rated
TTradeDataHub	No	Yes	Yes	Up	1008 ms	Not rated
UGC VZ	No	Yes	No	Up	602 ms	Not rated
Domainsdb.info	No	Yes	No	Up	1343 ms	Not rated
Pick an Agency	No	Yes	Yes	Down	–	Not rated
TTenders in Hungary	No	Yes	Unknown	Down	–	Not rated
TTenders in Poland	No	Yes	Unknown	Down	–	Not rated
TTenders in Romania	No	Yes	Unknown	Down	–	Not rated
TTenders in Spain	No	Yes	Unknown	Down	–	Not rated
TTenders in Ukraine	No	Yes	Unknown	Down	–	Not rated
markerapi	No	No	Unknown	Down	–	Not rated

See also: best Business APIs · all 44 Business APIs · every API with no key