APIs to help you go green—because saving the planet starts with the right data.
Calculates website carbon emissions per page view using real-time tests. Provides endpoints for testing and manual calculations.
100 API Health
The Water Quality Archive provides comprehensive data on water quality measurements from various sampling points across England including coastal, river, lake, and groundwater sources. It supports compliance assessment, pollution investigation, and environmental monitoring with data available dating back to 2000.
100 API Health
This API provides weather data, including current conditions, forecasts, and historical weather information. It allows users to access weather information for various locations worldwide.
100 API Health
Simulated river discharge at 5 km resolution from 1984 up to 7 months forecast.
100 API Health
A small, machine-readable index of UK CCTV drain survey prices aggregated from provider websites. Offers downloadable JSON, CSV and Markdown with median, source quotes and retrieval dates.
95 API Health
Pollutants and pollen forecast in 11 km resolution
95 API Health
Provides real-time UV Index and 5 day Hourly UV Index Forecast globally without API Key. Single endpoint for current UV Index and forecast based on latitude/longitude.
95 API Health
Open Topo Data is a REST API server that provides access to elevation data. Users can utilize the free public API or host their own server with customizable datasets.
95 API Health
The 7Timer Weather API provides global numerical weather forecasts derived from high-resolution models. Users can access weather data in graphical or machine-readable formats without needing an API key, enabling programmatic access to various meteorological elements.
95 API Health
The UV Index API provides real-time data on ultraviolet index levels for various locations in Singapore. Users can retrieve the latest UV index information updated every hour between 7 AM and 7 PM. The API allows for filtering by date or datetime via query parameters.
95 API Health
This API provides access to environmental monitoring data, including key parameters such as humidity, temperature, and carbon dioxide levels, from selected areas within NOI Techpark Bolzano and Brunico. The data can be utilized for studies related to indoor air quality, energy efficiency, and health impact assessments.
95 API Health
Public dataset (machine-readable JSON/CSV) that reports an index of HVAC replacement prices for Florida. It provides a statewide median, per-source price entries, and retrieval dates.
95 API Health
Provides access to energy data. Allows users to retrieve and analyze energy consumption information.
92 API Health
The openSenseMap API allows for managing users, senseBoxes (stations), and measurements, providing functionalities such as posting new data, retrieving sensor information, and managing senseBoxes. It also supports various operations with parameters for filtering and formatting responses, including JSON and CSV formats.
92 API Health
CA.gov serves as the official website for the State of California, providing access to various government services and resources for residents and visitors. Users can find information related to state departments, disaster assistance, and popular services like obtaining a driver's license or a birth certificate.
90 API Health
Official API for Carbon Intensity in Great Britain provided by National Grid. Allows access to current and historical carbon intensity data for different regions and time periods.
90 API Health
Veabird Beach API provides free JSON feeds with live beach conditions and sargassum forecasts for resort locations. It returns beach-day grades, sargassum levels, water and air conditions, and a 16-day outlook per resort. Feeds are static JSON files, CORS-enabled, and updated every six hours.
90 API Health
The GBIF API provides a programmatic interface to query and publish biodiversity data on GBIF.org, enabling advanced queries not supported by the website. Users can integrate GBIF data into scripts, workflows, or analyses, ensuring reliable and automated results.
87 API Health
The WeatherTotals JSON API provides real-time weather data including precipitation and snow information across various US states. The API does not require a key or signup, making it accessible for quick integration into applications.
85 API Health
The Air Quality Index (AQI) API provides real-time air quality data, including the AQI and specific pollutant concentrations (such as PM2.5, PM10, CO, NO2, SO2, and O3) for various locations around the world. This API helps developers integrate air quality monitoring features into applications, enabling users to make informed decisions regarding their environment and health.
85 API Health
This API provides updated information on red tides sighted in Hong Kong waters, including species and location. It facilitates access to datasets for both commercial and non-commercial use, ensuring transparency and availability of essential environmental data.
80 API Health
Description: Access real-time buoy readings and information from the National Data Buoy Center (NDBC) with this API. Currently under development, it provides essential data for ocean and weather monitoring enthusiasts and professionals. Supports various content types, including JSON, XML, CSV, and HTML. Ideal for integrating buoy data into your applications or research projects.
62 API Health
The Hong Kong CSDI Portal provides access to a range of geospatial data and applications aimed at supporting data sharing and government initiatives. It centralizes resources for spatial data, making it easier for users to find and utilize geographic information.
25 API Health
Largest open-source air quality data platform aggregating historical and real-time air quality data globally.
25 API Health