IUCN

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IUCN Red List of Threatened Species provides data on species conservation status and classification.

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Use it when

Authoritative conservation data

Watch for

Check the docs depth and real endpoint shape before assuming production fit.

First check

Obtain an API key to authenticate requests. Refer to the official documentation for endpoint details and usage guidelines.

Auth

api_key

CORS

HTTPS

Yes

Signup

Required

Latency

481 ms

Protocol

REST

Pricing

free

Uptime · 30-day window

Probes: 2Uptime: 0%Avg latency: 379ms

About this API

The IUCN Red List of Threatened Species API provides access to comprehensive data on the conservation status and classification of species worldwide. It is primarily used by developers and researchers who need reliable information about species at risk of extinction.

This API is relevant for applications focused on biodiversity, environmental monitoring, and conservation efforts. By integrating this data, developers can build tools that display species status, track changes in conservation categories, and support ecological research.

The API requires an API key for authentication and offers RESTful endpoints to access species data. Its authoritative and regularly updated dataset makes it a valuable resource for anyone working with species conservation information.

What you can build

1Display species conservation status
2Generate reports on threatened species
3Validate species classification data
4Build biodiversity monitoring tools

Strengths & limitations

Strengths

Authoritative conservation data
Covers global species information
Regularly updated classification

Example request

Generic template — replace <endpoint> with the real path from the docs.

curl http://apiv3.iucnredlist.org/api/v3/docs/<endpoint> \
  -H "Authorization: Bearer $API_KEY"
# Some providers use X-Api-Key instead — verify in the docs.