
Cloud data warehouse list prices, read daily from AWS and Azure pricing APIs, with price history.
Big Data Explained API is a free Open Data API that requires no API key, is served over HTTPS and supports CORS, so it can be called from the browser.
Free JSON API of cloud data warehouse list prices, read daily from vendor APIs, with an append-only price history. No key.
Details from bigdataexplained.com.

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The Big Data Explained API is provided by Big Data Explained (bigdataexplained.com). Free JSON API of cloud data warehouse list prices, read daily from vendor APIs, with an append-only price history. No key.
Yes. The Big Data Explained API is listed in the Open Data 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 Big Data Explained API requires no authentication, so you can start making requests without signing up.
Yes. The Big Data Explained API supports CORS, so front-end JavaScript can call it directly.
Yes. The Big Data Explained API is served over HTTPS, so it's safe to use in production.