Live Hands-On Course · Coming Soon
API Testing Craft for the AI Era
The API Testing Masterclass: The Tactician is a 4-module live course for practitioners who write, debug, and run API tests every day — and want to get significantly better at it.
Your API test suite is good. But is it ready for all the AI stuff?
You know your tools, and you have your go-to techniques. You also see that “testing” requires a lot more than it used to.
More cases to deal with. More decisions about what to automate. More generated tests to trust — and verify — while trying to cover more generated code that may or may not be understood by anyone on the team.
And then there’s the rest of it. Fragile tests. Debugging and reproducing the sometimes-unreproducible. Making a release decision you can actually defend.
Not to mention getting just as much out the door as before.
The Tactician is the hands-on course for the people who are up to their necks in automated tests and loving it. And want more. More tests. More trust in their tests. And more time to write those tests — instead of debugging and reading logs.
01
Data
From hard-coded to systematically managed test data that actually covers your risks.
02
Assertions
No more relying on 200 status codes. Assertions based on business rules, state violations, and what actually matters. Not the easy-to-write ones.
03
Debugging
Don’t re-run-and-hope. Don’t wait-for-next-time. Understand fragility and make your tests debuggable again.
04
Testing AI Features
They sure don’t look testable. But they require a different approach. Quality scorecards, semantic evaluation, and statistical methods that make non-deterministic systems verifiable.
Built for the Practitioner
Senior SDETs who want to sharpen their craft beyond the basics. API testers comfortable with tools but ready for deeper testing thinking. Developers who write API tests and want to write better ones. Anyone facing AI-powered features in their product and not sure how to test them.
If you live in the test code every day, this is your course.
Want to improve your strategic testing? For leaders who primarily need organizational strategy, governance frameworks, or stakeholder communication — check out The Strategist.
Dive Deep, or Get the High Vantage Point?
The Tactician teaches you how to do it — hands-on execution, day by day. The Strategist teaches you how to think about API testing at the organizational level.
The Tactician builds Testing Craftspeople. The Strategist builds Quality Architects.
They complement each other. Neither is a prerequisite. Take one, take both, start with whichever matches where you are right now.
See yourself as both? The Strategist is live now and enrolling — and graduates get first access when The Tactician opens.
Gil Zilberfeld
Testing Educator · Consultant · Author
25 years in software — developer, tester, manager, consultant. I’ve been the one writing the tests, debugging the failures, and explaining to management why “all green” doesn’t mean “all good.” This course teaches the craft I use every day.