Helicopter and passenger drone landing site directory, Helipaddy data and much more.
Helipaddy sites API is a free Vehicle API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
Access Helipaddy API resources for partner integrations, including site lookup and related data flows for aviation applications.
Details from helipaddy.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.
Vehicles information from Fundação Instituto de Pesquisas Econômicas - Fipe
Telematics data, remotely access vehicle functions, car configurator, locate service dealers
The Helipaddy sites API is provided by Helipaddy API (helipaddy.com). Access Helipaddy API resources for partner integrations, including site lookup and related data flows for aviation applications.
Yes. The Helipaddy sites API is listed in the Vehicle 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.
Yes. The Helipaddy sites API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the Helipaddy sites API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Helipaddy sites API is served over HTTPS, so it's safe to use in production.