Harry Potter Characters Data with with imagery.
Harry Potter Charactes API is a free Video API that requires no API key, is served over HTTPS and has unconfirmed CORS support.

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API for receiving movie, serial and cast information
Yes. The Harry Potter Charactes API is listed in the Video 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 Harry Potter Charactes API requires no authentication, so you can start making requests without signing up.
CORS support for the Harry Potter Charactes API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Harry Potter Charactes API is served over HTTPS, so it's safe to use in production.