Kroger vs Spoonacular

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.

Spoonacular is a broad food platform covering recipe search, ingredient parsing, meal planning, grocery product data, and wine pairing, backed by a database of hundreds of thousands of recipes, with a limited daily point allowance on its free tier before usage-based paid plans apply. A live GET against the real gateway, api.spoonacular.com, returned a genuine 401 'not authorized' JSON error while carrying an echoed Access-Control-Allow-Origin header, resolving cors unknown -> yes and reconfirming API Key auth in the same probe.