Read free. Unlock the deep stuff.
A huge amount of the database is free. $19.99/mo opens every ebook and guide as it drops. $49/mo tuition adds the full curriculum — every course, exam, and certificate.
Launch pricing — billed in USD
The open database. No account required.
- Every free article, guide & field note
- A free starter course you can take in full
- Sample chapters of every premium ebook
- Search the entire database — all 14 disciplines
Every ebook & guide — all you can read.
- Unlock every premium article, guide & ebook
- All new volumes included as they drop
- The Codex app reader — notes, highlights & bookmarks
- Synced to your collection in Cerebro
- Courses, graded exams & certificates (add Tuition)
The full curriculum. Everything, including courses.
- Everything in Codex Membership
- Every course — slideshows, readings & graded exams
- Certificates of completion
- Study tools: flashcards & quizzes
- Your full login to the Codex student app
Codex Membership ($19.99) and Student Tuition ($49) are recurring subscriptions billed monthly until cancelled. You can cancel anytime from your account; cancellation stops future charges and access continues through the end of the current billing period. See our Billing, Cancellation & Refund Policy. Prices in USD; taxes may apply.
Or pick exactly what you need
Every premium piece is also available on its own — one-time, yours forever.
The Ball Python — Volume One
The definitive, chapter-by-chapter guide. 30 chapters across husbandry, genetics, breeding, and health.
Morph Genetics — Full Course
Instructor-led: slideshows, readings, a graded exam, and a certificate. Included with Student Tuition.
The Bioactive Build
The complete living-enclosure system, layer by layer. Included with Codex Membership.
The Breeder's Bundle
Genetics, the breeding-season playbook, and the zoo-grade records system — the whole breeding track.
Is the database really free?
Yes. A large part of the knowledge base — articles, guides, field notes, and a free starter course — is open and free to read, no account required. Ebooks and courses are the paid layer.
What's the difference between Membership and Tuition?
Codex Membership ($19.99/mo) unlocks every premium ebook and guide as it drops, but not courses. Student Tuition ($49/mo) is the full curriculum — everything in Membership plus all courses, graded exams, and certificates.
Do I get the courses with the $19.99 membership?
No — the $19.99 membership is all-you-can-read ebooks and guides. Courses (with exams and certificates) are part of the $49 Student Tuition. There's also a free starter course anyone can take.
What is the Codex app?
The app is where reading becomes studying: a cinematic reader, notes, highlights, flashcards, graded courses, and certificates — all synced to your animals in Cerebro. Your membership or tuition is your login.
Can I cancel anytime?
Yes. Both subscriptions are month-to-month. Cancel anytime from your account — future charges stop and access continues through the end of the current billing period. Any à la carte purchases stay yours.