DNB Book Lookup

Quick access to book contents from Deutsche Nationalbibliothek (DNB) by ISBN, with optional AI-generated Klappentext for book listings.

Features

• ISBN-10 and ISBN-13 support (with or without hyphens)
• Automatic availability check for table of contents and content text
• Auto-fill ISBN from selected text when the ISBN argument is left empty
• Optional AI-generated Klappentext (max. 150 words) + 5 keywords
  • Source verification via Google Books and Wikipedia
  • Confidence score and source transparency
  • Falls back to opening PDF if AI is unavailable
• Automatic fallback to catalog entry when no content is available

Usage

1. Open Raycast
2. Type "Look up DNB Book"
3. Enter ISBN (e.g. 978-3-59335-383-8 or 9783593353838)
4. Press Enter

Preferences

The extension automatically opens all available content (table of contents and/or content text).

• Generate Klappentext: Enable AI-generated book description (requires Raycast Pro or BYOK)

AI Requirements

Requires Raycast Pro or BYOK (Bring Your Own Key):

• Anthropic (Claude)
• OpenAI (GPT-4)
• Google (Gemini)

DNB URL Structure

• https://d-nb.info/{IDN}/04 — Table of Contents
• https://d-nb.info/{IDN}/34 — Content Text
• https://d-nb.info/{IDN} — Catalog Entry (fallback)

Roadmap

v2.0 (planned)

• Klappentext without TOC: Generate AI description from title and author alone, using Google Books, Wikipedia, and Open Library — even when no digitized table of contents is available in DNB
• Open Library as additional description source
• TOC-via-Clipboard: Paste TOC text directly via an Action in the Detail View instead of an argument field

License

MIT