IUCN Red List API

The Red List v3 API will shortly be retired, to be replaced with v4. Exact timelines for this transition haven't been finalised. We are no longer accepting signups for the v3 API but we invite you to begin using the v4 API instead. You can sign up for the new v4 API here.

The IUCN Red List version is 2024-2.



API reference »

Citation and acknowledgement »