PAS7 Studio
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Payment Integration Services

Payment gateway integration for websites and ecommerce: Stripe, PayPal, Apple Pay, Google Pay, subscriptions, and secure checkout flows.

Quick links: Pricing and timeline Frequently asked questions Cases Support Request estimate via form


What is included in payment integration services

  • Payment gateway integration for websites and web platforms
  • Stripe and PayPal integration for one-time payments
  • Apple Pay and Google Pay setup in checkout
  • Subscription and recurring payment implementation
  • Webhook handling and payment status synchronization
  • Checkout UX optimization for conversion
  • Invoice and order status integration with CRM/ERP
  • Fraud and failure-flow handling with retries

Who this is for

  • Ecommerce stores with online checkout
  • SaaS products with recurring billing
  • Service businesses selling online
  • Marketplaces and booking platforms
  • Teams migrating between payment providers

What you get

  • Production-ready payment flow
  • Integrated checkout and callback logic
  • Subscription lifecycle handling
  • Technical documentation for finance flows
  • Monitoring and alerting setup
  • Post-launch support options

Delivery process

1

Scope and compliance mapping

Providers, regions, and legal constraints

2

Checkout architecture

UX flow, payment methods, and edge cases

3

Integration implementation

API setup, webhooks, and back-office sync

4

QA and security checks

Failure paths, retries, and monitoring

5

Go-live and support

Release, analytics, and ongoing maintenance


Timeline and pricing

Pricing

Technical SEO Audit

€100 (fixed)

Detailed technical report with issues, explanations and fix recommendations.

SEO Optimization

from €50+

Fixes, restructuring, performance tuning, Core Web Vitals and indexing improvements.

AI SEO Optimization

from €100+

Using artificial intelligence for competitor analysis, content generation and SEO strategy optimization.

Tech stack and integrations

Stripe APIPayPal APIApple PayGoogle PayNode.jsWebhook architecture

FAQ: payment gateway setup, pricing, timeline

How much does payment integration cost?

Pricing depends on provider count, checkout complexity, subscriptions, and CRM sync requirements.

Can you integrate Stripe and PayPal in one checkout?

Yes. We can provide multi-provider checkout with fallback and status synchronization.

Do you support Apple Pay and Google Pay?

Yes. We configure wallet payments where provider and region allow it.

Can you implement recurring subscription payments?

Yes. We build recurring billing with trial periods, renewals, and failure handling.

Do you integrate payments with ecommerce platforms?

Yes. We connect payment events with order lifecycle and analytics.

Can you connect payment events to CRM?

Yes. We sync successful, failed, and refunded payment states to CRM workflows.

Do you handle webhook reliability and retries?

Yes. We implement idempotency, retries, and monitoring for stable operations.

How long does payment integration take?

Typical implementation takes 1-4 weeks depending on business rules and provider scope.

Can you migrate us from one payment gateway to another?

Yes. We handle phased migration with minimal disruption to active users.

Do you offer post-launch payment support?

Yes. We provide maintenance plans for updates, incident response, and improvements.


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Need an experienced developer?

Contact us to discuss your project and get a free consultation.