API archive entry · source-reported
GBIF
Global Biodiversity Information Facility
Other Science & Math APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
CycleCalcs
Interpreted astronomy: sun and moon times, moon phases, planets, eclipses, seasons
No auth · HTTPS reported · CORS Yes
Europe PMC
Life-science literature search with abstracts, citations and full-text links
No auth · HTTPS reported · CORS Yes
Launch Library 2
Spaceflight launches and events database
No auth · HTTPS reported · CORS Yes
MyGene.info
Gene annotation queries and ID lookup
No auth · HTTPS reported · CORS Yes
OpenAlex
Open catalog of scholarly works, authors, institutions, sources, and concepts
No auth · HTTPS reported · CORS Yes
RCSB PDB
3D structures of proteins and nucleic acids
No auth · HTTPS reported · CORS Yes
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.