How to Build Full-Stack AI SaaS with Claude Code (Tutorial) - Forget Stripe: The Easiest Way to Add Payments

How to Add Payments to Your SaaS with Claude Code 📚 Access ALL video resources & get personalized help in my community: https://www.skool.com/agentic-labs-1244/about?ref=3fd61190e13d426dbf4f3b38adc7de69 📺 Build a SaaS with Claude Code (Full Series): https://www.youtube.com/playlist?list=PL4HikwTaYE0F40LZ_fZ1RXoxLrJyceKCu 💬 My AI voice-to-text software (Wispr Flow): https://wisprflow.ai/r?LEON114 ☕ Buy me a coffee: https://www.buymeacoffee.com/leonvanzyl 💵 Donate using PayPal: https://www.paypal.com/ncp/payment/EKRQ8QSGV6CWW Learn how to add payment processing to your SaaS applications in this step-by-step tutorial. I'll show you how to integrate Polar payment gateway with Next.js and BetterAuth to build a complete credit-based payment system using Claude Code as your AI coding agent. This payment integration tutorial covers setting up Polar as a Stripe alternative with global availability and automatic tax handling as merchant of record. You'll implement the BetterAuth Polar plugin, create products and pricing tiers, configure Inngest webhooks for automated payment processing, and deploy your production-ready payment system. Perfect for indie hackers and SaaS developers building real-world applications who need to add payment processing to their Next.js apps. This is part of my full-stack SaaS series demonstrating how to build production applications with Claude Code. ⏰ TIMESTAMPS: 00:00 Adding payment processing to SaaS 00:42 Why use Polar over Stripe 01:21 Polar Next.js integration overview 01:32 BetterAuth Polar plugin setup 02:07 Adding Polar documentation to project 02:27 Claude Code implementation plan 03:18 Setting up Polar account 04:30 Creating products in Polar dashboard 05:45 Configuring credit packages and pricing 07:30 Adding Polar environment variables 08:45 Testing development checkout flow 11:00 Inngest webhook setup and configuration 13:00 Creating Inngest payment functions 15:30 Testing credit allocation system 17:00 Deploying payment system to production 19:00 Production Polar account setup 21:00 Creating production products and webhooks 25:30 Testing production payment flow 26:53 Completing Polar account verification 28:00 Using discount codes for testing 28:41 Debugging Inngest function sync issues 29:25 Final production payment test success #claudecode #polar #vibecoding