Free Environment APIs - No Auth Required

Browse our collection of free environment APIs. Each API includes detailed documentation, example requests, and usage guides. Click on any API to learn more.

Carbon Intensity API

UK Carbon Intensity data from National Grid

Environment No Auth Works in: GB

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EPA API

US Environmental Protection Agency data

Environment No Auth Works in: US

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USGS Water Services

US water quality and availability data

Environment No Auth Works in: US

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