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Fiverr Pro
English
$
USD
I will integrate stripe payments and subscriptions into your nextjs app
Fumiaki T
About this gig
Turn your Next.js app into a working paid product with Stripe.
I integrate secure payments, subscriptions, Customer Portal, and webhooks into an existing Next.js or React application.
What I can deliver:
- Stripe Checkout for one-time payments
- Recurring subscriptions and pricing tiers
- Customer Portal
- Secure webhook verification and event handling
- Supabase or PostgreSQL billing records
- User role or plan updates after payment
- Trial, cancellation, refund, and failed-payment flows
- Production testing and deployment support
Why work with me:
- 20+ years shipping production web applications
- Built and operate a web business with $1M+ lifetime revenue
- Practical Stripe experience on live products
- AI-assisted speed with personal review and testing
- Clear fixed scope and a written plan within 24 hours
Send me your stack, current authentication setup, Stripe account status, and the payment flow you need. I will recommend the smallest package that gets you live.
Get to know Fumiaki T
Fumiaki T
AI Web App Rescue Expert for Stripe Supabase and OpenAI
- FromJapan
- Member sinceSep 2022
- Last delivery3 months
Languages
Japanese, English
Japan-based web engineer with 20+ years of experience. I rescue AI-generated and existing web apps that are stuck, insecure, or not ready to launch.
I fix Next.js and React apps, secure Supabase authentication and RLS, integrate Stripe payments and subscriptions, and add OpenAI or Claude features.
I run a web business with $1M+ lifetime revenue and 1M+ monthly pageviews at its peak. My workflow is AI-assisted, then personally reviewed and tested.
You get a clear fixed scope, async communication through Fiverr messages, and a practical plan within 24 hours. No meetings are required.
My Portfolio
FAQ
Do you need access to my Stripe account?
I need test-mode access or a safe collaboration method plus the relevant repository. Keep secret keys in environment variables and never paste them into a public message.
Are Stripe fees included?
No. Stripe processing fees and any account charges are paid directly by you. This Gig covers development, configuration, testing, and handoff.
Can you add subscriptions and Customer Portal?
Yes. The Standard package is designed for subscriptions, Customer Portal, and secure webhook handling for one product or pricing structure.
Can you work with Supabase authentication?
Yes. I can connect Stripe customers and subscriptions to Supabase users and update roles or entitlements from verified webhook events.
What should I send before ordering?
Send your stack, repository or preview, authentication provider, Stripe products or pricing plan, and the exact payment flow. I will confirm the scope first.
