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Payment Integration

Stripe checkout, subscriptions and webhooks for web apps, SaaS and marketplaces.

Payments are the one part of a product that cannot be “mostly working”. A missed webhook means a customer pays and gets nothing, or stops paying and keeps access.

I build payment flows that stay in sync: Stripe handles the money and the card data, and your app always knows who has paid for what.

What I build

Checkout. Stripe Checkout for the fastest secure setup, or Stripe Elements when the payment form needs to live inside your own page.

Subscriptions. Plans, trials, coupons, upgrades, cancellations and Stripe’s customer portal, so users manage billing themselves.

Webhooks. The quiet part that matters most. Your database updates when a payment succeeds, fails, renews or is refunded.

Real projects. I built subscription billing into a RAG chatbot SaaS and Stripe payments into a car rental and repair platform.

Process

How it works.

01

Scope

One-time payments, subscriptions, marketplace payouts or invoices. We pick the simplest model that works.

02

Build

Checkout, customer records and webhooks, with card data handled by Stripe, never by your server.

03

Test

Every path in test mode, including failed cards, refunds and cancelled subscriptions.

04

Go live

Live keys, monitoring and a short handover so you know where to look.

FAQ

Payment Integration: common questions.

Is it safe to take card payments on my site?

With Stripe Checkout or Stripe Elements, card details go straight to Stripe and never touch your server, which keeps most of the security work on Stripe's side.

Can you add subscriptions to an existing SaaS?

Yes. I connect Stripe Billing to your user accounts, add plans and a customer portal, and use webhooks so access changes the moment a payment succeeds or fails.

Should a mobile app use Stripe?

For physical goods and real-world services, yes. For digital features inside the app, the app stores usually require their own billing. See in-app purchases.

Need help with payment integration?

Share what you are building or what is stuck. You get a straight answer on what I would do, how long it takes and whether I am the right fit.