SWAPI
All things Star Wars
Star Wars GraphQL API.
SWAPI GraphQL API is a free Video API that requires no API key, is served over HTTPS and has unconfirmed CORS support.
Details from graphql.org.

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All things Star Wars
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The SWAPI GraphQL API is provided by SWAPI GraphQL API (graphql.org).
Yes. The SWAPI GraphQL 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 SWAPI GraphQL API requires no authentication, so you can start making requests without signing up.
CORS support for the SWAPI GraphQL API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The SWAPI GraphQL API is served over HTTPS, so it's safe to use in production.