Skip to main content

Analysis API

Endpoint#

/analysis

Method#

GET and PUT

Description#

The Analysis API performs an analysis of food items from a provided description and/or an image or image URL. It uses SnapCalorie's proprietary model to interpret the input and returns a JSON representation of identified foods and their quantities with corresponding nutrition. Read about our prior research where our team achieved twice the accuracy on nutrition from an image compared to professional nutritionists.

URL#

https://us-central1-snapcalorieb2bapi.cloudfunctions.net/analysis

Parameters#

  • key: The API key for authentication (required).
  • description: Free text description of food items (optional)*.
  • image_url or image: Attached image or URL of an image containing food items (optional)*.

*At least one of description or image must be present.

Sample Requests#

curl -X GET 'https://us-central1-snapcalorieb2bapi.cloudfunctions.net/analysis?key=YOUR_API_KEY&description=YOUR_DESCRIPTION&image_url=YOUR_IMAGE_URL'
import requests
response = requests.put(    'https://us-central1-snapcalorieb2bapi.cloudfunctions.net/analysis',    json={        'key': api_key,        'image': b64image_data    })

Sample Responses#

  • Success Response:

    {  "code": 200,  "success": true,  "data": [    {      "name": "big mac",      "brand": "McDonald's",      "nutrition_per_100g": {        // Guaranteed fields        "mass_g": 100,        "calories_kcal": 225,        "carb_g": 18.75,        "fat_g": 11.6667,        "protein_g": 10.4167,
        // Detailed Nutrients, if available        // All possible fields are shown here, but if a nutrient is not availble,        // it will not be present in the response.        // Vitamins        "b1_mg": ,        "b2_mg": ,        "b3_mg": ,        "b5_mg": ,        "b6_mg": ,        "b12_mcg": ,        "folate_mcg": ,        "vitamin_a_mcg": ,        "vitamin_c_mg": ,        "vitamin_d_iu": 0,        "vitamin_e_mg": ,        "vitamin_k_mcg": ,
        // Minerals        "calcium_mg": 0,        "copper_mg": ,        "iron_mg": 1.8,        "magnesium_mg": ,        "manganese_mg": ,        "phosphorus_mg": ,        "potassium_mg": 150,        "selenium_mcg": ,        "sodium_mg": 420,        "zinc_mg": ,
        // Carbohydrates        "fiber_g": 1.2,        "starch_g": ,        "sugar_g": 3.5,
        // Lipids aka Fats        "monounsaturated_g": ,        "polyunsaturated_g": ,        "omega_3_fatty_acids_g": ,        "omega_6_fatty_acids_g": ,        "saturated_fats_g": 3,        "trans_fats_g": 0.4,        "cholesterol_mg": 35,
        // Proteins        "cystine_g": ,        "histidine_g": ,        "isoleucine_g": ,        "leucine_g": ,        "lysine_g": ,        "methionine_g": ,        "phenylalanine_g": ,        "threonine_g": ,        "tryptophan_g": ,        "tyrosine_g": ,        "valine_g": ,
        // Other Details        "percent_fruit": 0, // Portion of item that is fruit from 0-1        "percent_vegetable": 0.05,  // Portion of item that is vegetable from 0-1        "percent_legume_or_nuts": 0, // Portion of item that is legume or nuts from 0-1        "is_beverage": false,        "source_urls": ["https://www.mcdonalds.com/us/en-us/product/big-mac.html"],      },      "alt_units": [        {          "unit": "serving",          "weight_in_grams": 240        },        {          "unit": "g",          "weight_in_grams": 1        },        {          "unit": "sandwich",          "weight_in_grams": 240        },        {          "unit": "calorie",          "weight_in_grams": 0.4444        },      ],      "default_portion": {        "quantity": 1,        "unit": "sandwich"      },      "selected_portion": {        "quantity": 1,        "unit": "sandwich"      },      "selected_portion_nutrition": {        "mass_g": 240,        "calories_kcal": 540,        "carb_g": 45,        "fat_g": 28.0001,        "protein_g": 25.0001,
        // Detailed Nutrients, if available        // Same fields as above in nutrition_per_100_g        // "b1_mg": ,        // "b2_mg": ,        // ...      }    }  ]}

  • Error Response:

See Error Responses for how the API will signal malformed or failed requests.

Notes#

  • Replace YOUR_API_KEY, YOUR_DESCRIPTION, and YOUR_IMAGE_URL with your actual values.
  • Ensure that your requests are sent over HTTPS to maintain security.
  • The response format is JSON, providing a list of identified food items and their details.
  • brand is an optional field that is only set if relevant to the query.

Get Started#

Request an API Key