Capstok
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2026 curriculum · live

The textbook for builders who learn with AI.

Every challenge talks to your Claude, Cursor, or any MCP-aware agent. 7,500+ tasks across 12 tracks.

Begin your first challengeBrowse tracks
  • Reach every lesson from Claude, Cursor, or MCP
  • 7,500+ challenges across 14 tracks
  • 40+ languages
  • From a few dollars a week

14 tracks

Module 1 is free · Module 2 unlocks on signup · Members get the rest.

Agentic and Applied AI

The engineering take on AI — context, RAG, agents, serving, and the production lifecycle.

9 courses

Blockchain

Smart contracts, ZK cryptography, and high-performance chains.

11 courses

Creative AI

Prompt craft, AI film-making, and putting AI into the products you build.

5 courses

Engineering

Distributed systems, databases, and concurrency at the level they actually break.

14 courses

Mathematics

The math builders reach for when the problem pushes back.

7 courses

Machine Learning & AI

Build AI systems from first principles — not just use them.

5 courses

Marketing

Distribution is a system. Build it like one.

13 courses

DevOps & Cloud Infrastructure

Build and scale multi-cloud infrastructure like a senior SRE.

4 courses

Quality Analysis

Test it. Break it. Ship it right.

3 courses

Security

Web, system, device — defend and authorized-test like a senior.

7 courses

3D Printing & Modeling

From first print to designing exactly what you want — printer-independent.

4 courses

IoT & Connected Devices

From breadboard to shipped product — silicon, signals, cloud, and certification.

1 course

Product Management

From idea to ship — discovery, specs, manufacturing, launch.

2 courses

Electronics & Embedded

From a multimeter on the bench to a PCB on a CM line — circuits, microcontrollers, RF, power.

1 course
New · Bring your own AI

Let your AI read the course — and teach you from it.

Every lesson, every module, every course is reachable from Claude Desktop, Claude Code, Cursor, or any MCP-aware agent. Mint an API key, paste it in, and your AI now has the whole curriculum in context — tailored to your tier.

Teach me this lesson

Your AI pulls the MDX body and explains it the way you learn — not how the author wrote it.

Quiz me on this

Ask it to grill you on a module. It already has the material — no copy-paste, no hallucinated facts.

Plan my path

It can see your progress and point you at the next lesson that actually moves the needle.

Get an API keyRead-only · scoped to your account · revoke any time
What your AI can call
  • →
    list_coursesbrowse the catalogue
  • →
    get_taskfetch a lesson's full body
  • →
    search_tasksfind a lesson by topic
  • →
    get_my_progresssee where you are in a course
Tiered access is enforced server-side: your AI can't peek at lessons you haven't unlocked. It can't submit capstones or change your account either — the surface is deliberately read-only.

Built for your AI

Every task ships with three labelled prompts — basics, mechanism, advanced. Per-course AI primers. The whole catalogue is reachable via MCP. Your Claude or Cursor already speaks Capstok.

Do, don't watch

Every module is a sequence of short challenges with a runnable demo, a try-it list, and the real spec or paper linked beside it. Never a lecture.

Cheap, on purpose. In your language.

Weekly, monthly, annual — or just the course you care about. Foundations free forever. Translated into 40+ languages so nobody is locked out by English.