Understand what people eat. Predict what happens next.

One API platform for personalized metabolic & nutrition intelligence

86%

Meal scan accuracy

+12.1

POINTS OVER FRONTIER LLMS

54M

Foods in our database

Typical nutrition API

Meal → Nutrition

January

Meal → Nutrition → Predicted glucose response → Personalized next action

What you get back

Turn a meal photo into structured nutrition data

One photo scan returns the meal, its detected foods, and aggregated nutrition. Glucose predictions and healthier alternatives are separate calls on the same key

REST · JSON · API key auth

Read the API reference

POST /v1.2/food-scans/photo

{
  "meal_name": "Chicken burrito bowl",
  "total_nutrients": {
    "calories": { "value": 682, "unit": "kcal" },
    "carbohydrates": { "value": 74, "unit": "g" },
    "protein": { "value": 43, "unit": "g" },
    ...
  },
  "detections": [
    {
      "confidence_score": "high",
      "food": {
        "id": 10241,
        "name": "White rice, cooked",
        "nutrients": { ... },
        "servings": [{ "quantity": 1, "unit": "cup" }]
      }
    },
    ...
  ]
}

Predict how a meal will affect glucose before it’s eaten

No CGM, no finger sticks

• Two-hour predicted curve
• Low / medium / high impact read
• Patented prediction model built on millions of data points

See the prediction docs

The world’s most accurate meal scanner

86%

Scan accuracy

Across ingredient recognition and macronutrient estimation, more than 12 accuracy points ahead of the next best app.

+12.1

Points over GPT-4o

Overall composite score of 86.24 versus 74.11 for GPT-4o on the same 1,000 images.

1,000

Benchmark images

Real meals from the January app, each with human-validated meal names, ingredients, and macros.

Lowest

Macro wMAPE

Weighted mean absolute percentage error on calories, carbs, protein, and fat, where lower is better.

The paper, the code, and the dataset are public, so you can rerun every number yourself before you sign anything.

Production-tested in the January app

The same capabilities power the January consumer app, where they are used every day for nutrition, weight, and glucose management

Explore the January app

Create a free account

Sign up at dashboard.january.ai and get your first API key.

Make your first API call

POST a meal photo, or GET a food search, over REST and read the JSON.

Move to production

Upgrade as volume grows.

Or ship the whole experience under your brand

If you would rather not build the front end, January can deliver the full app under your brand, configured to the capabilities you need