Edamam nutrition vs Kroger

Edamam's Nutrition Analysis API parses a free-text ingredient line and returns calories, macro/micronutrients, and diet and health labels for that food or recipe, aimed at meal-tracking apps. A live GET against the real gateway, api.edamam.com, returned a genuine 401 'Unauthorized app_id' JSON error while carrying an echoed Access-Control-Allow-Origin header, resolving cors unknown -> yes and reconfirming API Key auth (an app ID and key pair) in the same probe.

Kroger's public API exposes product search, pricing, and store-locator data across its US supermarket banners for registered developer applications using an OAuth client-credentials token. A live GET against the real gateway, api.kroger.com, returned a genuine 401 'access_token is missing' JSON error while carrying an echoed Access-Control-Allow-Origin header, resolving cors unknown -> yes and reconfirming API Key auth in the same probe.