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Nutrition Lookup (USDA FoodData Central)
datanutritionfooddietcalorieshealth
Nutrition Lookup (USDA FoodData Central) is a paid API for AI agents from ZeroClick x402 Service Registry at nutrition.withzero.ai, paid per call via MPP, $0.001/call, status unknown (last checked 2026-10-10, last successful call 2026-05-04).
Look up detailed nutrition facts for any food by name using the USDA FoodData Central database, returning calories, macros, fiber, sodium, and cholesterol.
Price / call$0.001
Success100%
StatusUnknown
How this service works
Look up nutrition facts for foods via USDA FoodData Central (free API). Input: food name with optional limit and data type filter. Output: foods with detailed nutrition data including calories, protein, fat, carbs, fiber, sugars, sodium, and cholesterol.
Output
Returns a list of matching foods (up to the requested limit) each with USDA FDC ID, food name, optional brand name, serving size and unit, and a full nutrient breakdown including calories (kcal), protein (g), total fat (g), saturated fat (g), carbohydrates (g), fiber (g), sugars (g), sodium (mg), and cholesterol (mg).
Example use cases
Example prompt
“Look up the nutrition facts for grilled salmon using USDA Foundation data — I want to see the calories, protein, fat, and carbs — return up to 5 results.”
Technical details
Endpoint
POSThttps://nutrition.withzero.ai/run?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative, structured nutrition data backed by USDA FoodData Central — especially when accuracy of macros and micronutrients matters (e.g. diet tracking, meal planning, calorie counting). Prefer over scraped or estimated nutrition sources. Use the dataType filter to narrow to Foundation or SR Legacy for unbranded, research-grade data, or Branded for packaged food specifics.
Side effects
- No results found for obscure or misspelled food names
- Branded foods may lack fiber or micronutrient data
- Generic query returns irrelevant branded variants if dataType not filtered
- Limit exceeded (max 10) returns validation error
- Nutrient values may vary significantly across USDA data types for the same food
Input
{
"limit": 5,
"query": "chicken breast",
"dataType": "Foundation"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Maximum results to return (default: 3) |
| queryrequired | string | Food name to search for (e.g. "chicken breast", "banana") |
| dataType | string | Filter by USDA data type (default: all types) |
Output
{
"query": "chicken breast",
"results": [
{
"name": "Lunchmeat, chicken breast, sliced",
"fdcId": 2759004,
"brandName": null,
"nutrients": {
"fat": {
"unit": "g",
"value": 0
},
"carbs": {
"unit": "g",
"value": 0
},
"fiber": {
"unit": "g",
"value": 0
},
"sodium": {
"unit": "mg",
"value": 0
},
"sugars": {
"unit": "g",
"value": 0
},
"protein": {
"unit": "g",
"value": 0
},
"calories": {
"unit": "kcal",
"value": 0
},
"cholesterol": {
"unit": "mg",
"value": 0
},
"saturatedFat": {
"unit": "g",
"value": 0.703
}
},
"servingSize": null,
"servingSizeUnit": null
},
{
"name": "Chicken, breast, boneless, skinless, raw",
"fdcId": 2646170,
"brandName": null,
"nutrients": {
"fat": {
"unit": "g",
"value": 1.93
},
"carbs": {
"unit": "g",
"value": 0
},
"fiber": {
"unit": "g",
"value": 0
},
"sodium": {
"unit": "mg",
"value": 65.8
},
"sugars": {
"unit": "g",
"value": 0
},
"protein": {
"unit": "g",
"value": 22.5
},
"calories": {
"unit": "kcal",
"value": 0
},
"cholesterol": {
"unit": "mg",
"value": 72.7
},
"saturatedFat": {
"unit": "g",
"value": 0.349
}
},
"servingSize": null,
"servingSizeUnit": null
},
{
"name": "Chicken, breast, meat and skin, raw",
"fdcId": 2727569,
"brandName": null,
"nutrients": {
"fat": {
"unit": "g",
"value": 4.78
},
"carbs": {
"unit": "g",
"value": -0.428
},
"fiber": {
"unit": "g",
"value": 0
},
"sodium": {
"unit": "mg",
"value": 48.1
},
"sugars": {
"unit": "g",
"value": 0
},
"protein": {
"unit": "g",
"value": 21.4
},
"calories": {
"unit": "kcal",
"value": 0
},
"cholesterol": {
"unit": "mg",
"value": 75.4
},
"saturatedFat": {
"unit": "g",
"value": 0
}
},
"servingSize": null,
"servingSizeUnit": null
},
{
"name": "Chicken, broiler or fryers, breast, skinless, boneless, meat only, cooked, braised",
"fdcId": 331960,
"brandName": null,
"nutrients": {
"fat": {
"unit": "g",
"value": 3.24
},
"carbs": {
"unit": "g",
"value": 0
},
"fiber": {
"unit": "g",
"value": 0
},
"sodium": {
"unit": "mg",
"value": 47
},
"sugars": {
"unit": "g",
"value": 0
},
"protein": {
"unit": "g",
"value": 32.1
},
"calories": {
"unit": "kcal",
"value": 166
},
"cholesterol": {
"unit": "mg",
"value": 116
},
"saturatedFat": {
"unit": "g",
"value": 1.01
}
},
"servingSize": null,
"servingSizeUnit": null
},
{
"name": "Chicken, ground, with additives, raw",
"fdcId": 2514746,
"brandName": null,
"nutrients": {
"fat": {
"unit": "g",
"value": 7.16
},
"carbs": {
"unit": "g",
"value": 0
},
"fiber": {
"unit": "g",
"value": 0
},
"sodium": {
"unit": "mg",
"value": 63
},
"sugars": {
"unit": "g",
"value": 0
},
"protein": {
"unit": "g",
"value": 17.9
},
"calories": {
"unit": "kcal",
"value": 0
},
"cholesterol": {
"unit": "mg",
"value": 81.7
},
"saturatedFat": {
"unit": "g",
"value": 1.56
}
},
"servingSize": null,
"servingSizeUnit": null
}
],
"resultCount": 5
}Schema · Response
| Field | Type | Description |
|---|---|---|
| queryrequired | string | The food query that was searched |
| resultsrequired | array | |
| resultCountrequired | number | Number of results returned |
Tags
datanutritionfooddietcalorieshealthusda
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