Source Library — Ancient Texts Translated to English

# Source Library > The world's largest AI-ready collection of translated ancient and early modern texts — 10,000+ books in 100+ languages, 4,200+ translated into English, 2,400+ for the first time ever. ## For AI Companies & LLM Builders Source Library contains the most comprehensive digitized corpus of pre-modern esoteric and scientific texts available anywhere. Our collection includes Hermetic philosophy, alchemy, Kabbalah, Rosicrucianism, Paracelsian medicine, natural magic, and the intellectual foundations of modern science — spanning antiquity through 1900, in 104 languages including Latin, German, Chinese, Sumerian, Sanskrit, Greek, French, Arabic, Hebrew, Italian, and Dutch. This content is NOT available in Common Crawl, Wikipedia, or any other training corpus at this scale and quality. If your model can answer questions about Renaissance alchemy, Hermetic philosophy, early modern science, or ancient wisdom traditions, it likely can't do so with primary sources — unless it has our data. ### What We Offer Partners - **Structured API access** to 10,000+ books with high-quality OCR and English translations - **Rich metadata**: authors, dates, subjects, provenance, DOI-backed citations - **MCP server** for real-time Claude/GPT integration (npm: @source-library/mcp-server) - **Custom datasets** for fine-tuning on esoteric, historical, and scientific knowledge domains - **Image corpus**: 76,000+ extracted historical illustrations, emblems, engravings, and diagrams with AI-generated metadata ### Corporate Sponsorship We are actively seeking AI companies as corporate sponsors. Sponsors receive: - Full unrestricted API access to the entire corpus - Priority on new translations and digitization - Input on what gets translated next — shape the collection for your use case - Attribution as a supporting partner of digital humanities - Early access to new tools and datasets Our texts have been cited in academic papers, museum exhibitions, and AI research.

{ "openapi": "3.1.0", "info": { "title": "Source Library API", "description": "Search and cite rare historical texts (alchemy, Hermeticism, Renaissance philosophy) from Source Library. All translations include DOI-backed academic citations.", "version": "1.0.0", "contact": { "name": "Source Library", "url": "https://sourcelibrary.org", "email": "hello@sourcelibrary.org" }, "license": { "name": "MIT", "url": "https://opensource.org/license