iNaturalist
Science Data No key
AuthenticationNo key
Rate limitNo published quota; follow the recommended API practices and pace requests.
Documentation: api.inaturalist.org ยท Checked Sep 13, 2026
About
iNaturalist is a citizen-science platform where people record wildlife sightings with photos, sounds, and locations. Its free API gives you access to over 200 million observations, species data, identifications, and projects. Reading public data needs no key; only posting observations or accessing private data requires OAuth.
Details
No key needed. You can call it right away.
Auth: No key
Rate limit: No published quota; follow the recommended API practices and pace requests.
Verified: 2026-09-13
Best for: personal developer fun
Setup
- Paste the example URL into your browser to see observations instantly, no signup needed.
- Change taxon_name to any species, or add place_id and date filters.
- Explore the full endpoint list in the interactive docs page.
- Only if you need to post data: register an app for OAuth credentials.
Example
https://api.inaturalist.org/v1/observations?taxon_name=Apis%20mellifera&per_page=3Use cases
- Show recent bird or insect sightings near a location on a nature map
- Build a species-identification helper using community-verified photos
- Track biodiversity trends for a school or conservation project