Open DataNo authHTTPSCORS ?
Open Data
OpenCorporates
Data on corporate entities and directors in many countries.
OpenCorporates API is a free Open Data API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
- Authentication
- apiKey
- HTTPS
- Yes
- CORS
- Unknown
- Category
- Open Data
Visit documentation ↗api.opencorporates.com
About API Reference: version 0.4.8 :: OpenCorporates API
- Provider
- API Reference: version 0.4.8 :: OpenCorporates API
- Website
- api.opencorporates.com ↗
Details from api.opencorporates.com.
Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Get your free API key→Free tier on every API
OpenCorporates API alternatives
No authHTTPSCORS
Open Scholarships
Free, openly-licensed directory of US scholarships and student aid from official sources
No authHTTPSCORS
apiKeyHTTPSCORS ?
No authHTTPSNo CORS
PayCrunch
US wages for 1,008 occupations and by state, from BLS OEWS May 2025, static JSON, CC BY 4.0
No authHTTPSCORS
OpenCorporates API FAQ
Who provides the OpenCorporates API?
The OpenCorporates API is provided by API Reference: version 0.4.8 :: OpenCorporates API (api.opencorporates.com).
Is the OpenCorporates API free?
Yes. The OpenCorporates API is listed in the Open Data category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Does the OpenCorporates API require an API key?
Yes. The OpenCorporates API uses apiKey authentication, so you need to register for credentials before making requests.
Can I call the OpenCorporates API from the browser?
CORS support for the OpenCorporates API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Does the OpenCorporates API support HTTPS?
Yes. The OpenCorporates API is served over HTTPS, so it's safe to use in production.