// ANIMALS
IUCN
IUCN Red List of Threatened Species
IUCN is a free public Animals API that requires apiKey authentication. It does not support HTTPS and does not enable CORS.
// FACTS
- Category
- Animals
- Authentication
- apiKey
- HTTPS
- no
- CORS
- no
- Endpoint
- apiv3.iucnredlist.org
- Cost
- Free
// FREQUENTLY ASKED
What is IUCN?
IUCN is a free public API in the Animals category. IUCN Red List of Threatened Species
Does IUCN require authentication?
Yes — IUCN requires apiKey authentication to make requests.
Is IUCN free?
Yes. IUCN is listed in our directory of free public APIs and is free to use. Check the official site for any rate limits or paid tier limitations.
Does IUCN support HTTPS?
IUCN does not currently support HTTPS — requests are sent over HTTP only.