A web search API is a service that lets software query a search engine’s index of the Web and receive the results as structured data, rather than through a browser or by scraping a search results page. A program issues a request containing a query and parameters and gets back machine-readable results (typically URLs, titles, and text snippets, alongside news, images, videos, and richer content) ready to use in an AI application.
In short: a web search API is how software searches the Web—send a query, get back structured results to build on, with no browser or scraping required.
How a web search API works
The provider runs the search infrastructure so the developer just sends queries and receives data:
Maintain an index: The provider continuously crawls and indexes the Web, building the searchable corpus behind the API. (Note that scrapers generally do not maintain their own indexes of the Web.)
