Access to the laws of British Columbia.
BCLaws API is a free Government API that requires no API key, is only available over HTTP and has unconfirmed CORS support.

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Yes. The BCLaws API is listed in the Government 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 BCLaws API requires no authentication, so you can start making requests without signing up.
CORS support for the BCLaws API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
No. The BCLaws API is only available over plain HTTP, which browsers block on HTTPS sites. Call it from a server instead.