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The Da-Vinci API is free for personal, research, and non-commercial use. In exchange, anything you build with it must credit the library.

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The rule

  1. Credit venivididavinci.com visibly in your app, page, post, or dataset.
  2. Link to the source page for any content you reproduce: https://venivididavinci.com/codex/{slug}/{index}.
  3. Keep the provenance line wherever you show Reader’s Edition content (titles, summaries, highlights, translations): it is AI-written editorial content, grounded in the e-Leo transcription and the page scan — readers deserve to know that.
Every folio response includes a ready-made credit so you never have to build one:

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The layers, precisely

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Commercial use

Building something commercial on the API — a paid product, an app with ads, a redistributed dataset? Get in touch. We’re friendly; we mainly want to know about it.

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What not to do

  • Don’t mirror the full library and serve it as your own — the rate limits make this impractical by design, and it’s the one thing that would make us tighten an otherwise open API.
  • Don’t strip the provenance line from Reader’s Edition content and present the translations as human scholarship.