Image Search APIs
What image-specific search endpoints return and where they're useful.
What it means
An image search endpoint runs a query against an engine's image index rather than its general web index, returning results shaped around visual content: an image URL, its source page, dimensions, and often a thumbnail — fields a general organic-results endpoint simply doesn't carry. Some providers also support reverse image search, where the query itself is an image rather than text.
In practice
A query like blue midcentury modern armchair against an image endpoint returns a list of {image_url, source_page, width, height, thumbnail} objects, letting a shopping or design-research application show visual results directly rather than sending a user to click through ten separate organic links to see what each page actually shows.
Tradeoffs
Image search is strong for genuinely visual tasks (product discovery, design inspiration, reverse lookup) but the metadata is thinner than organic web results — you typically don't get a rich text snippet describing the image's context, only what the source page's alt text or surrounding content happens to provide, which varies wildly in quality across the web.