Chrome based screenshot API for developers.
ApiFlash API is a free Development API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
ApiFlash is an easy to use screenshot API for developers. It is powerful and cost efficient as it is operating on top of AWS Lambda and Google Chrome.
Details from apiflash.com.

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The ApiFlash API is provided by ApiFlash (apiflash.com). ApiFlash is an easy to use screenshot API for developers. It is powerful and cost efficient as it is operating on top of AWS Lambda and Google Chrome.
Yes. The ApiFlash 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 ApiFlash API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the ApiFlash API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The ApiFlash API is served over HTTPS, so it's safe to use in production.