GuardAI can now take payments! In this video, I integrate Stripe into my existing AI SaaS app and test the full Free-to-Pro upgrade flow using Claude Code.

We start by asking Claude Code to implement Stripe in the GuardAI project. Then I explain the payment flow, create a Stripe account and Pro product, configure the Price ID and API key, set up Stripe CLI and a local webhook, and add the required environment variables.

Finally, I run GuardAI, click Upgrade to Pro, complete a Stripe test payment, and verify the Free-to-Pro upgrade.

In this video:
* Prompting Claude Code to integrate Stripe
* Understanding Stripe products, prices, checkout, and webhooks
* Creating a Stripe account and Pro product
* Setting up the Price ID and API key
* Installing and logging in to Stripe CLI
* Configuring a local webhook
* Adding environment variables
* Testing the checkout and Free-to-Pro upgrade

Tech stack: Next.js, Stripe, Stripe CLI, Supabase, Claude Code

This is part of Phase 6: Full Stack AI SaaS Engineering in AI Engineer 360. Follow the complete GuardAI build on The Techzeen.

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