Live public web data as JSON: Google Search, Maps, News, Amazon, jobs, reviews & more, one API key.
Clair API is a free Development API that requires apiKey authentication, is served over HTTPS and does not support CORS, so it should be called from a server.
On-demand developer APIs for Google Search, news, jobs, Amazon, reviews, company data, product launches, and website contacts.
Details from clair.im.

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The Clair API is provided by Clair API (clair.im). On-demand developer APIs for Google Search, news, jobs, Amazon, reviews, company data, product launches, and website contacts.
Yes. The Clair API is listed in the Development category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The Clair API uses apiKey authentication, so you need to register for credentials before making requests.
Not directly. The Clair API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Yes. The Clair API is served over HTTPS, so it's safe to use in production.