Brawl Stars Game Information.
Brawl Stars API is a free Games & Comics API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
Let's get constructive with the Brawl Stars API! Build amazing experiences with access to accurate and secure game data.
Details from developer.brawlstars.com.

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The Brawl Stars API is provided by Brawl Stars API (developer.brawlstars.com). Let's get constructive with the Brawl Stars API! Build amazing experiences with access to accurate and secure game data.
Yes. The Brawl Stars API is listed in the Games & Comics 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 Brawl Stars API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the Brawl Stars API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The Brawl Stars API is served over HTTPS, so it's safe to use in production.