Ship production software. One subscription, the whole library.

AI agents, backend, fullstack, and the masterclasses in between. Practice, notes and certificates on every course, and every new release the day it ships. Cancel in one click. Seven-day refund, no questions asked.

7-day refundCancel in one clickProgress saved forever

Explore

Free

$0forever

Every lesson, code sample and diagram, and every free ebook. Progress syncs across devices.

Ship a real project this week
Free foundations path across AI, backend, and fullstack
Save progress, earn certificates, build a portfolio

Go pro

Most engineers pick this

Pro

$297/year

Billed once a year

Add practice, notes and certificates to every course, plus the tools that make it stick. Ship production-grade software at your own pace.

Build production RAG, agents, backends, and fullstack apps
Your full downloadable library
Learning insights across your library
Spaced-repetition review that makes it stick
A verified, shareable certificate and portfolio
Seven-day money-back. Cancel in one click.

Questions before you buy?

What's included

Feature	Free	Pro
Read every lesson, code sample and diagram
Progress sync
Quizzes, flashcards and hands-on practice
Notes, highlights and saved snippets
Spaced-repetition review
Verified, shareable certificate + portfolio
Interactive chat mode
Full downloadable library
Seven-day refund window

Self-paced

Want to build live with Param instead?

Join the cohort on Maven: six live sessions and office hours with a small group.

I've never shipped AI. Is Pro too advanced?

Read any lesson for free, no account needed. Upgrade the week you want quizzes, practice, notes and a certificate on top.

Is this just videos I won't finish?

Every course is interactive: validation steps, hints, code you run. Progress tracks what you actually built, not what you watched.

What if I don't use it?

Seven-day refund window, no questions asked.

Monthly vs Yearly — which?

Monthly for trying it out. Yearly if you're committed to six or more months.

Can I cancel?

One click, any time, from your settings. You keep access until the end of the current billing period.

Do you still sell individual courses?

No. Pro adds practice, notes and certificates on every course. Earlier one-time purchases remain yours forever.