
An open source Business Intelligence server to share data and analytics inside your company.
Metabase API is a free Open Source Projects API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
Metabase grounds every answer in your semantic layer — your metrics and business logic — so you can inspect the query behind it.
Details from metabase.com.

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The Metabase API is provided by Metabase (metabase.com). Metabase grounds every answer in your semantic layer — your metrics and business logic — so you can inspect the query behind it.
Yes. The Metabase API is listed in the Open Source Projects 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 Metabase API requires no authentication, so you can start making requests without signing up.
Yes. The Metabase API supports CORS, so front-end JavaScript can call it directly.
Yes. The Metabase API is served over HTTPS, so it's safe to use in production.