Usage Guide

This section is the core endpoint reference for the Nutrition AI REST API. Here you will find how to search for foods, recognize food from images, log meals from voice or text, look up products by barcode, and extract nutrition from label photos.

Start with the End-to-End Walkthrough for a complete flow from authentication through recognition, search, and voice logging. For the structure of API responses (reference codes, nutrition previews, full details), see Data Essentials.