API Bouncer

Buy me a coffee

SustainMetrics

18,000+ GHG emission factors from DEFRA, EPA, ADEME, Ember

EnvironmentAuth: API KeyHTTPS: YesCORS: yesStatus: alive

Last verified: November 12, 2026

Reliability

100% uptime: the documentation responded in 5 of 5 checks over the last 30 days. Median response time: 154 ms.

How we check, and the most reliable APIs →

Visit API →

At a glance

// Fetch the docs page with cURL curl https://www.sustainmetrics.net/api

History

  • November 12, 2026: last health check, responding

See every change to the directory →

More Environment APIs

Looking for other Environment APIs? Here are more free options in the same category:

  • 1ClickImpact — Environmental impact API for tree planting, carbon offsetting and ocean cleanup
  • AirNow — US EPA air quality data and forecasts
  • BreezoMeter Pollen — Daily Forecast pollen conditions data for a specific location
  • CO2 Offset — API calculates and validates the carbon footprint
  • Calendrier Tempo — French EDF Tempo tariff: today's and tomorrow's colour, kWh prices and 15-day colour forecasts
  • Carbon Interface — API to calculate carbon (C02) emissions estimates for common C02 emitting activities
  • Climatiq — Calculate the environmental footprint created by a broad range of emission-generating activities
  • Cloverly — API calculates the impact of common carbon-intensive activities in real time
  • EIA Open Data — US energy statistics: electricity, petroleum, gas
  • El mapa del agua — Water hardness (°fH) of Spanish municipalities by INE code or postal code, with the source and date of each analysis

View all Environment APIs →