OBIS
Environment & Climate No key
AuthenticationNo key
Rate limitAPI is intended for smaller subsets; use the bulk downloads for large jobs
Documentation: obis.org ยท Checked Sep 13, 2026
About
The Ocean Biodiversity Information System: global records of marine species occurrences. Fish, dolphins, plankton, corals. With location and depth. Free with no key; for very large downloads, OBIS recommends its AWS GeoParquet snapshots instead of the API.
Details
No key needed. You can call it right away.
Auth: No key
Rate limit: API is intended for smaller subsets; use the bulk downloads for large jobs
Verified: 2026-09-13
Best for: marine researchers conservation education
Example
https://api.obis.org/v3/occurrence?scientificname=Delphinus%20delphis&size=1Use cases
- Map dolphin or whale sightings
- Research species range shifts
- Build marine conservation dashboards