Carbon Footprint

Estimate CO2e emissions from energy, fuel, transport and travel using published emission factors.

betaSustainabilityAvailable on RapidAPI

Deterministic CO2-equivalent estimation using bundled, published emission factors (UK DEFRA 2025 for fuels/gas/water/UK transport; US EPA and IEA for grid intensities; IPCC AR6). Calculates emissions as activity × factor for electricity by country grid, natural gas, petrol, diesel, LPG, road transport, passenger aviation, rail, bus and waste, with scope (1/2/3) tagging and a source label per factor. These are estimates for footprinting and dashboards - not a certified audit. Nothing is stored; the same input always returns the same number. Refresh factors annually as new DEFRA/EPA/IEA publications appear.

Base URL: https://69.62.119.122.nip.io/carbon

Quick start

curl https://69.62.119.122.nip.io/carbon/health

Endpoints

GET/healthHealth check
POST/v1/estimateEstimate CO2e for one activity
POST/v1/batchEstimate up to 100 activities
GET/v1/factorsList available activities & factors

Pricing

BASIC
Free
200 requests / month
PRO
$12.99 /mo
30,000 requests / month
ULTRA
$39.99 /mo
400,000 requests / month

Plans are billed through RapidAPI — subscribe there to get your API key.

Available on RapidAPI.

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