DummyImage vs Metropolitan Museum of Art

DummyImage generates placeholder images on the fly from a simple URL pattern — width, height, background/text color, and format (PNG, GIF, or JPG) are all encoded in the path — with no signup or key. A live GET against the real host returned a genuine PNG carrying Access-Control-Allow-Origin: *, resolving cors unknown -> yes and reconfirming auth None.

The Met's Collection API exposes all 502,000+ objects in its Open Access collection — the same data behind its own site — fully keyless and free, asking only that callers self-throttle to 80 requests per second. A live GET against the real gateway, collectionapi.metmuseum.org, returned genuine object data carrying Access-Control-Allow-Origin: *, correcting cors no -> yes while reconfirming auth None.