BUILD SOMETHING USEFUL

Business APIs

Browse business API resources and compare source-reported access requirements. Open the provider’s documentation to confirm current terms and capabilities.

47APIs

1Categories

14No Authentication

45HTTPS Supported

Browse all 52 categories

APILayer APIs17 Animals24 Anime20 Anti-Malware17 Art & Design31 Authentication & Authorization7 Blockchain18 Books26 Business47 Calendar22 Cloud Storage & File Sharing19 Continuous Integration6 Cryptocurrency96 Currency Exchange27 Data Validation16 Development220 Dictionaries15 Documents & Productivity53 Email38 Entertainment19 Environment30 Events5 Finance97 Food & Drink36 Games & Comics111 Geocoding112 Government126 Health47 Jobs37 Machine Learning54 Music36 News26 Open Data79 Open Source Projects11 Patent4 Personality27 Phone8 Photography38 Programming5 Science & Math59 Security61 Shopping28 Social58 Sports & Fitness66 Test Data37 Text Analysis20 Tracking11 Transportation97 URL Shorteners21 Vehicle16 Video58 Weather47

Search APIs

CategoryAuthenticationHTTPSCORSSort

47 matching APIs · Loading full catalog…

Source listed

Apache Superset

Business

API to manage your BI dashboards and data sources on Superset

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Charity Search

Business

Non-profit charity data

Auth: API Key
HTTPS: No
CORS: Unknown

Visit Provider Details →

Source listed

Clearbit Logo

Business

Search for company logos and embed them in your projects

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Compabase

Business

Polish company data: 3M+ KRS and CEIDG entities with financial statements, people and rankings

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Crustdata

Business

People and company data covering profiles, headcount, funding and contacts

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Domainsdb.info

Business

Registered Domain Names Search

Auth: No Auth
HTTPS: Yes
CORS: No

Visit Provider Details →

Source listed

EuroValidate

Business

EU VAT (VIES), IBAN and EORI validation with company name & address lookup

Auth: API Key
HTTPS: Yes
CORS: Yes

Visit Provider Details →

Source listed

Freelancer

Business

Hire freelancers to get work done

Auth: OAuth
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Funding Signals

Business

Companies that just raised funding, scored as sales leads, from public SEC filings

Auth: API Key
HTTPS: Yes
CORS: No

View Documentation Details →

Source listed

GlobalEntity

Business

Official company data from 56 European business registers as normalized JSON

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Gmail

Business

Flexible, RESTful access to the user's inbox

Auth: OAuth
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Google Analytics

Business

Collect, configure and analyze your data to reach the right audience

Auth: OAuth
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

gstinapi

Business

Verify Indian GST numbers (GSTIN): legal name, status, address and return filing history; free tier

Auth: API Key
HTTPS: Yes
CORS: No

View Documentation Details →

Source listed

Instatus

Business

Post to and update maintenance and incidents on your status page through an HTTP REST API

Auth: API Key
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

InvoiceIn

Business

Parse and validate received e-invoices: XRechnung, ZUGFeRD, Peppol, FatturaPA, KSeF

Auth: API Key
HTTPS: Yes
CORS: Yes

Visit Provider Details →

Source listed

Invovate

Business

Generate PDF, JSON & UBL invoices in 11 languages from one JSON POST

Auth: API Key
HTTPS: Yes
CORS: No

Visit Provider Details →

Source listed

Katalis

Business

UK company checks: payment practices, contracts won, registers, filed accounts, change feed

Auth: API Key
HTTPS: Yes
CORS: No

Visit Provider Details →

Source listed

KontragentPro

Business

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

Auth: No Auth
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Leadgen Romania

Business

Romanian company registry, ANAF tax status and financial statements

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Legal Sandbox Georgia

Business

Find verified legal specialists in Georgia from natural-language queries

Auth: No Auth
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Mailchimp

Business

Send marketing campaigns and transactional mails

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

mailjet

Business

Marketing email can be sent and mail templates made in MJML or HTML can be sent using API

Auth: API Key
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

markerapi

Business

Trademark Search

Auth: No Auth
HTTPS: No
CORS: Unknown

Visit Provider Details →

Source listed

Meirra

Business

SEO monitoring, email verification, lead generation, and marketing analytics

Auth: API Key
HTTPS: Yes
CORS: Yes

Visit Provider Details →

Choose an API with clear expectations

Use No Auth to find entries reported as not requiring credentials. It does not mean unlimited use. HTTPS describes source-reported transport support; it is different from the protocol of the documentation link. CORS concerns browser requests, so a service can work on a backend even when browser access is unavailable.

First confirm that the provider still documents your use case. Read its pricing, quotas, data license and privacy terms, then test with non-sensitive sample data in your own environment. Favorites are saved in this browser so you can compare candidates later.

Source synchronized 2026-10-26 · Revision 82e763ed · Report a source problem