GBIF vs iDigBio

The Global Biodiversity Information Facility is a keyless REST API for searching species, occurrence, and dataset records aggregated from natural history collections, herbaria, and citizen-science platforms worldwide — its occurrence index alone reports a live count past 3.9 billion records. It's operated by an intergovernmental nonprofit funded by member governments, so querying the API is free; registration is only needed to publish new datasets, not to read existing ones.

iDigBio is a keyless REST API exposing more than 150 million digitized natural-history specimen records — pressed plants, pinned insects, fossils, and more — contributed by U.S. museums and herbaria under an NSF-funded national digitization effort. Search and summary endpoints return Darwin Core fields (collector, locality, taxonomic name) as JSON, and the same backend powers iDigBio's public specimen-browsing portal.