Build Real
API Security Skills

Theory, code reviews, hands-on exploit labs,
and code remediation — all in your browser!

Join 600+ engineers building API security skills!

Code Review & Exploit Labs

Practice reviewing real-world API code to uncover and exploit the vulnerabilities you find in isolated lab environments.

Strengthen your ability to spot security issues, validate them in practice and think like an AppSec professional.

Remediate Vulnerabilities

Fix security vulnerabilities directly in the app using Python code examples based on real Damn Vulnerable RESTaurant scenarios.

Learn how to properly remediate common API security issues and build secure code practices.

Theoretical materials

API Security Champion provides a condensed theoretical learning materials to allow you to learn the most important aspects of API security and use it in practice to identify, exploit and remediate security vulnerabilities.

Quizzes to test your knowledge

Validate your understanding of web applications and API security principles through structured assessments.

What Our Users Say

“Clear, noise-free explanations paired with hands-on online labs make this course both engaging and highly effective.”

JR
João Ramires
Software Developer

“Having followed the entire development lifecycle, I can attest that this is a technically robust platform grounded in deep domain expertise and real-world engineering practices.”

AM
Aleksy Miśtal
Backend Software Developer

Choose Your Plan

Start learning for free or unlock the full experience with Pro

Unlock browser-based interactive labs, an in-platform code editor, and hands-on remediation of vulnerabilities. Pro additionally includes a certificate of completion.

Free

€0
Free Access
Core theory lessons (API & Web fundamentals)
Core Quizzes
Progress tracking
Real-world API vulnerability walkthroughs
Advanced theory lessons
Advanced Quizzes
Vulnerability exploitation labs
(Local only – run on your machine)
Remediation challenges
(Fix vulnerabilities in open-source code)
Certificate of completion
Get Started Free

Lab Pass

€19
+ tax if applicable
1 Month Access
Core theory lessons (API & Web fundamentals)
Core Quizzes
Progress tracking
Real-world API vulnerability walkthroughs
Advanced theory lessons
Advanced Quizzes
Vulnerability exploitation labs
(Built-in, browser-based labs)
Remediation challenges
(Fix vulnerabilities directly in the code)
Certificate of completion
Get Lab Pass!
🛡️ 14-day satisfaction guarantee
Recommended

Pro

€99
+ tax if applicable
3 Months Access
Core theory lessons (API & Web fundamentals)
Core Quizzes
Progress tracking
Real-world API vulnerability walkthroughs
Advanced theory lessons
Advanced Quizzes
Vulnerability exploitation labs
(Built-in, browser-based labs)
Remediation challenges
(Fix vulnerabilities directly in the code)
Certificate of completion
Become Pro!
🛡️ 14-day satisfaction guarantee

Got Questions?

I’m a beginner with no experience in web applications. Is this the right platform for me?

Absolutely. API Security Champion is designed for beginners and semi-advanced professionals for training purposes.

You’ll start with the fundamentals and progress toward more advanced, hands-on security topics at your own pace.

Are code review modules suitable for experienced developers?

Yes. Code review challenges are designed to be realistic and thought-provoking,
helping experienced developers sharpen their vulnerability detection and secure-coding skills.

Can I receive a certificate after completing all materials?

Yes! You can obtain a certificate that is verifiable online after completing at least 80% of the practical challenges.

How secure is my data?

Authentication is handled through Auth0, a trusted identity and access management platform.
Only essential data is processed by the API Security Champion platform to ensure a safe and seamless learning experience.
All data is managed in compliance with GDPR regulations and securely stored on EU-based servers.