Do not worry about managing the multiple versions of the Bible.
A Bíblia Digital API is a free Books API that requires apiKey authentication, is served over HTTPS and does not support CORS, so it should be called from a server.

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Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
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Free Bible API with multiple languages
Yes. The A Bíblia Digital API is listed in the Books 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 A Bíblia Digital API uses apiKey authentication, so you need to register for credentials before making requests.
Not directly. The A Bíblia Digital API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Yes. The A Bíblia Digital API is served over HTTPS, so it's safe to use in production.