Macrostrat

Geologic maps, rock columns and stratigraphy data.

Macrostrat API is a free Science & Math API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.

Authentication: None required
HTTPS: Yes
CORS: Yes
Category: Science & Math

Visit documentation ↗macrostrat.org

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Macrostrat API FAQ

Is the Macrostrat API free?

Yes. The Macrostrat API is listed in the Science & Math category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.

Does the Macrostrat API require an API key?

No. The Macrostrat API requires no authentication, so you can start making requests without signing up.

Can I call the Macrostrat API from the browser?

Yes. The Macrostrat API supports CORS, so front-end JavaScript can call it directly.

Does the Macrostrat API support HTTPS?

Yes. The Macrostrat API is served over HTTPS, so it's safe to use in production.