AI Knowledge Repository
The Library of
Alexandria for AI
Explore ideas across science, technology, philosophy and more. A growing library of knowledge packs for humans and AI agents.
- Preserved packs
- 55
- Knowledge domains
- 50
- Catalog access
- Free
From the collection
Start with a little wonder.
CodexLib · Knowledge collection
Knowledge pack Large Language Models: Fundamentals
AI & Machine LearningCodexLib · Knowledge collection
Knowledge pack Classical & Modern Physics Fundamentals
PhysicsCodexLib · Knowledge collection
Knowledge pack Philosophy: Ethics, Logic & Critical Thinking
PhilosophyCodexLib · Knowledge collection
Knowledge pack Software Engineering Patterns
Computer ScienceCodexLib · Knowledge collection
Knowledge pack World History: Major Events & Civilizations
HistoryCodexLib · Knowledge collection
Knowledge pack Applied Mathematics Essentials
MathematicsEvery subject, a doorway.
MedicineComputer ScienceEngineeringLawFinancePhysicsChemistryBiologyMathematicsPsychologyHistoryPhilosophyBusinessAgricultureArchitectureLinguisticsArt & DesignMusicCulinaryEducationEnvironmental ScienceAstronomyGeographySociologyPolitical ScienceSports ScienceMilitary ScienceMaritimeAviationRoboticsAI & Machine LearningCybersecurityData ScienceBlockchainTelecommunicationsManufacturingEnergyTransportationReal EstateHealthcareVeterinaryPharmacyDentistryNursingSocial WorkJournalismFilm & MediaFashionHospitalityQuantum Computing
The catalog is open. Recovery continues.
Browse, search, read and download 55 preserved knowledge packs across 50 original topics. These are the original catalog files, with their content kept intact.
Hosted book summaries, personal libraries and saved notes remain unavailable while the database is offline. They are separate from this collection. Additional prepared material is still awaiting review.