Payment Gateway Integration Services for Any Platform
Payment gateway integration services from BuildStory Studio connect your platform to the world's leading payment processors — Stripe, PayPal, Square, Klarna, and regional gateways — securely, reliably, and in full PCI DSS compliance. We handle one-time payments, recurring subscriptions, multi-currency support, and complex split payment flows for marketplaces — all tested end-to-end before going live.
Request a payment integration quoteWhat Payment Gateway Integration Includes
Gateway Selection
We recommend the best gateway for your geography, transaction volume, currency requirements, and fee structure.
One-Time Payment Setup
Standard checkout flows with card, wallet (Apple Pay, Google Pay), and bank transfer payment methods.
Subscription & Recurring Billing
Plan management, trial periods, proration, invoice generation, and dunning automation for SaaS and membership models.
PCI Compliance
Tokenization and hosted fields implementation that keeps your integration in SAQ A — the simplest compliance path.
Webhook Integration
Payment event webhooks integrated to your backend for order management, fulfilment triggers, and accounting sync.
Testing & Certification
Full sandbox testing across all payment flows, edge cases, and failure scenarios before any production deployment.
Frequently Asked Questions
Which payment gateways do you integrate?
We integrate Stripe, PayPal, Square, Klarna, Authorize.net, Braintree, Adyen, and regional gateways. We recommend Stripe for most new integrations due to its developer-first API and global coverage.
Is payment gateway integration PCI compliant?
Yes. All our integrations use tokenization and hosted fields so raw card data never touches your server — keeping your integration in PCI DSS SAQ A compliance.
Can you integrate subscriptions and recurring billing?
Yes. Stripe Billing, PayPal Subscriptions, and Chargebee integrations for recurring billing, plan management, trial periods, proration, and dunning automation are all within scope.
Take payments securely and reliably.
Request a payment integration quote. We'll recommend the right gateway for your requirements and provide a clear integration scope within 48 hours.
BuildStory TM
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info@buildstory.studio
+1 (202) 794-7921
Remote & worldwide