Diet CO2 footprint calculator API

Compute annual dietary CO2e from servings/day per food item using Poore & Nemecek (2018) per-serving factors (beef 6.6, lamb 5.8, cheese 2.3, pork 1.7, poultry 1.3, fish 1.2, eggs 0.4, rice 0.7, legumes 0.2, vegetables 0.15 kg CO2e). Returns a per-item breakdown, daily and annual kg/tonnes CO2e, a low/moderate/high/very-high rating and tree equivalents. Answers 'carbon footprint of my diet','CO2 of eating beef daily','vegetarian vs meat-eater emissions','annual food footprint'.

Price$0.01per request

MethodPOST

Route/v1/calc/carbon-diet-footprint

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

carbondietfoodemissionsco2footprintnutritionsustainability

API URLhttps://x402.hexl.dev/v1/calc/carbon-diet-footprint

Integration docs

Example request

{
  "servingsPerDay": {
    "beef": 0.5,
    "poultry": 1,
    "vegetables": 3
  }
}

Example response

{
  "breakdown": [
    {
      "item": "beef",
      "servingsPerDay": 0.5,
      "dailyKgCO2e": 3.3
    },
    {
      "item": "poultry",
      "servingsPerDay": 1,
      "dailyKgCO2e": 1.3
    },
    {
      "item": "vegetables",
      "servingsPerDay": 3,
      "dailyKgCO2e": 0.45
    }
  ],
  "dailyKgCO2e": 5.05,
  "annualKgCO2e": 1843.25,
  "annualTonnesCO2e": 1.843,
  "rating": "high",
  "equivalentTrees": 87.77
}

Input schema

{
  "type": "object",
  "required": [
    "servingsPerDay"
  ],
  "properties": {
    "servingsPerDay": {
      "type": "object",
      "additionalProperties": {
        "type": "number"
      },
      "description": "item -> servings/day; items: beef,lamb,cheese,pork,poultry,fish,eggs,dairy,rice,legumes,vegetables,fruit,nuts",
      "examples": [
        {
          "beef": 0.5,
          "poultry": 1,
          "vegetables": 3
        }
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}