Art Institute of Chicago vs Colormind

The Art Institute of Chicago publishes its full collection of 130,000+ objects as a versioned, keyless REST API (api.artic.edu/api/v1) built on the same data that powers its own website and mobile app, with IIIF-based endpoints for zoomable, high-resolution images. A live GET against a real artwork record returned genuine JSON carrying Access-Control-Allow-Origin: *, reconfirming both auth None and cors yes with no key required.

Colormind generates five-color palettes from a model trained on movies, art, and popular color schemes, returning a plain array of RGB triples from a single POST to /api/ with no signup. A live probe of the real gateway confirmed it now answers over HTTPS as well as HTTP (correcting https false -> true) and sends Access-Control-Allow-Origin: * on every response, resolving cors unknown -> yes.