USDA FoodData Central API
The FoodData Central API provides REST access to FoodData Central (FDC), the USDA's integrated data system that provides expanded nutrient profile data and links to related agricultural and experimental research. The API supports food search, nutrient lookup, and retrieval of food details across multiple food data types including Foundation Foods, SR Legacy, FNDDS, Branded Foods, and Experimental Foods.
Documentation
Specifications
OpenAPI
https://api.nal.usda.gov/fdc/v1/yaml-spec?api_key=DEMO_KEY
OpenAPI
https://raw.githubusercontent.com/api-evangelist/united-states-department-of-agriculture/refs/heads/main/openapi/usda-fooddata-central-openapi.yml
Other Resources
SpectralRules
https://raw.githubusercontent.com/api-evangelist/united-states-department-of-agriculture/refs/heads/main/rules/usda-fooddata-central-rules.yml
NaftikoCapability
https://raw.githubusercontent.com/api-evangelist/united-states-department-of-agriculture/refs/heads/main/capabilities/food-data-research.yaml
SignUp
https://fdc.nal.usda.gov/api-key-signup/