ALL-CAPS AS A SERVICE.
SHOUTCLOUD API is a free Development API that requires no API key, is only available over HTTP and has unconfirmed CORS support.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Extract metadata, tech stack, emails, and screenshots from any URL
Website screenshots as PNG, JPEG, WebP or PDF, and page content as markdown, with a free tier
Yes. The SHOUTCLOUD 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.
No. The SHOUTCLOUD API requires no authentication, so you can start making requests without signing up.
CORS support for the SHOUTCLOUD API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
No. The SHOUTCLOUD API is only available over plain HTTP, which browsers block on HTTPS sites. Call it from a server instead.