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Environment APIs

Browse environment API resources and compare source-reported access requirements. Open the provider’s documentation to confirm current terms and capabilities.

30APIs

1Categories

15No Authentication

28HTTPS Supported

Browse all 52 categories

APILayer APIs17 Animals24 Anime20 Anti-Malware17 Art & Design31 Authentication & Authorization7 Blockchain18 Books26 Business47 Calendar22 Cloud Storage & File Sharing19 Continuous Integration6 Cryptocurrency96 Currency Exchange27 Data Validation16 Development220 Dictionaries15 Documents & Productivity53 Email38 Entertainment19 Environment30 Events5 Finance97 Food & Drink36 Games & Comics111 Geocoding112 Government126 Health47 Jobs37 Machine Learning54 Music36 News26 Open Data79 Open Source Projects11 Patent4 Personality27 Phone8 Photography38 Programming5 Science & Math59 Security61 Shopping28 Social58 Sports & Fitness66 Test Data37 Text Analysis20 Tracking11 Transportation97 URL Shorteners21 Vehicle16 Video58 Weather47

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CategoryAuthenticationHTTPSCORSSort

30 matching APIs · Loading full catalog…

Source listed

AirNow

Environment

US EPA air quality data and forecasts

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

BreezoMeter Pollen

Environment

Daily Forecast pollen conditions data for a specific location

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Carbon Interface

Environment

API to calculate carbon (C02) emissions estimates for common C02 emitting activities

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Climatiq

Environment

Calculate the environmental footprint created by a broad range of emission-generating activities

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

Cloverly

Environment

API calculates the impact of common carbon-intensive activities in real time

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

CO2 Offset

Environment

API calculates and validates the carbon footprint

Auth: No Auth
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

Danish data service Energi

Environment

Open energy data from Energinet to society

Auth: No Auth
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

EIA Open Data

Environment

US energy statistics: electricity, petroleum, gas

Auth: API Key
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

GridHub

Environment

Live wholesale electricity prices and demand across 25 grid zones

Auth: API Key
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

GridVigil

Environment

Pressure scores, demand, generation mix and alerts for the 10 major U.S. power grids

Auth: No Auth
HTTPS: Yes
CORS: Yes

View Documentation Details →

Source listed

GrünstromIndex

Environment

Green Power Index for Germany (Grünstromindex/GSI)

Auth: No Auth
HTTPS: No
CORS: Yes

Visit Provider Details →

Source listed

IQAir

Environment

Air quality and weather data

Auth: API Key
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

kanari

Environment

Real-time worldwide wildfire detections, water bomber tracking and open fire archive

Auth: No Auth
HTTPS: Yes
CORS: Yes

Visit Provider Details →

Source listed

Luchtmeetnet

Environment

Predicted and actual air quality components for The Netherlands (RIVM)

Auth: No Auth
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Mycelium

Environment

Corporate carbon emissions disclosures (scope 1, 2 and 3), company-reported and estimated

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

National Grid ESO

Environment

Open data from Great Britain’s Electricity System Operator

Auth: No Auth
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

Open-Meteo

Environment · Weather

Free weather API for non-commercial use

Auth: No Auth
HTTPS: Yes
CORS: Yes

Visit Provider Details →

Source listed

OpenAQ

Environment

Open air quality data

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

PM2.5 Open Data Portal

Environment

Open low-cost PM2.5 sensor data

Auth: No Auth
HTTPS: Yes
CORS: Unknown

Visit Provider Details →

Source listed

PM25.in

Environment

Air quality of China

Auth: API Key
HTTPS: No
CORS: Unknown

View Documentation Details →

Source listed

PVGIS

Environment

EU solar radiation and photovoltaic performance estimates

Auth: No Auth
HTTPS: Yes
CORS: No

View Documentation Details →

Source listed

PVWatts

Environment

Energy production photovoltaic (PV) energy systems

Auth: API Key
HTTPS: Yes
CORS: Unknown

View Documentation Details →

Source listed

Sähkön hinta nyt

Environment

Finnish and Nordic day-ahead electricity spot prices (15-minute), cheapest hours

Auth: No Auth
HTTPS: Yes
CORS: Yes

Visit Provider Details →

Source listed

sensor.community

Environment

Community air quality sensor network data worldwide

Auth: Other
HTTPS: Yes
CORS: Yes

View Documentation Details →

Choose an API with clear expectations

Use No Auth to find entries reported as not requiring credentials. It does not mean unlimited use. HTTPS describes source-reported transport support; it is different from the protocol of the documentation link. CORS concerns browser requests, so a service can work on a backend even when browser access is unavailable.

First confirm that the provider still documents your use case. Read its pricing, quotas, data license and privacy terms, then test with non-sensitive sample data in your own environment. Favorites are saved in this browser so you can compare candidates later.

Source synchronized 2026-10-26 · Revision 82e763ed · Report a source problem