Recipe Nutrition Calculator API for Multiple Ingredients

A recipe nutrition calculator API multiple ingredients sums calories and macros across every item in a dish without N+1 API calls. Pass food IDs and gram weights. Get total and per-serving nutrition JSON. Calorie API POST /calc/recipe handles aggregation server-side.

Deep dive also in recipe nutrition analyzer API and recipe blog labels.

Endpoint

POST /api/v1/public/calc/recipe
Content-Type: application/json

Request Body

{
  "servings": 4,
  "ingredients": [
    { "food_id": 11420, "grams": 300 },
    { "food_id": 9200, "grams": 150 },
    { "food_id": 5501, "grams": 50 }
  ]
}

Resolve food_id values via search first:

curl "https://api.calorieapi.com/api/v1/search/foods?q=chicken+breast&limit=1" \
  -H "X-API-Key: YOUR_KEY"

Response (Conceptual)

Use totals for meal prep batches. Use per_serving for recipe cards.

JavaScript Example

async function calcRecipe(ingredients, servings) {
  const res = await fetch('https://api.calorieapi.com/api/v1/public/calc/recipe', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json', 'X-API-Key': KEY },
    body: JSON.stringify({ servings, ingredients }),
  });
  return res.json();
}

Proxy from CMS or app backend in production.

vs Manual Summing

Use Cases

Related

• Meal prep macro backend
• Spoonacular data-only alternative

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