Kroger vs Open Brewery DB

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.

Open Brewery DB is an open, keyless directory of breweries, cideries, and bottle shops across the US and several other countries, searchable by name, city, state, or brewery type. A live GET against the real gateway, api.openbrewerydb.org, returned genuine JSON while carrying an echoed Access-Control-Allow-Origin header, reconfirming both cors yes and auth None in the same probe.