Payment Gateway

Custom Shopify Payment Gateway App Development

Integrate any payment provider into Shopify with a custom gateway app. We build PCI-DSS compliant payment solutions with multi-currency support, fraud detection, recurring billing, and split payment capabilities that process transactions securely at scale.

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INR 2000

Per Hour

200+

Apps Delivered

4.9/5

Client Rating

<2 Weeks

MVP Delivery

Integrates with the tools you already use

ShopifyAmazonStripeSlackNotionVercel

Payment Gateway Capabilities We Build

End-to-end payment processing solutions for Shopify merchants worldwide

Custom Gateway Integration

Connect any payment provider to Shopify using the Payments Apps API. We integrate regional gateways, banking APIs, and alternative payment methods not available through Shopify's default options, including UPI, PIX, BNPL, and crypto wallets.

Multi-currency Support

Automatic currency detection, real-time exchange rate conversion, and localized checkout experiences. Support 135+ currencies with intelligent rounding, local pricing rules, and settlement in your preferred currency.

Fraud Detection

ML-powered fraud scoring with customizable risk rules. Real-time velocity checks, device fingerprinting, address verification, 3D Secure authentication, and automated hold/release workflows to minimize chargebacks while maximizing approval rates.

Recurring Billing

Subscription payment processing with automatic retry logic, dunning management, proration handling, and plan upgrades/downgrades. Integrated with Shopify's subscription APIs for a seamless merchant and customer experience.

Split Payments

Marketplace-style payment splitting across multiple vendors, commission calculation, automated payouts, and escrow holding. Support percentage-based, fixed-fee, and tiered commission structures with transparent settlement reports.

PCI-DSS Compliance

Level 1 PCI-DSS compliant architecture with tokenized card storage, encrypted data transmission, and secure vault integration. We handle the compliance burden so merchants focus on selling, not audits.

99.99%

Uptime SLA

50+

Gateways Integrated

PCI

DSS Compliant

<2s

Processing Time

How We Build Your Payment Gateway App

A security-first 5-step process from compliance planning to production payments

Gateway & Compliance Assessment
We evaluate your payment provider's API capabilities, document PCI-DSS requirements, map the transaction flow, and define the security architecture. Every payment app starts with a thorough compliance and risk assessment.
Secure Architecture Design
Design the tokenization flow, API gateway structure, webhook handling, and error recovery mechanisms. We create Polaris-compliant merchant configuration screens for gateway settings, API credentials, and fraud rule management.
Payment Flow Development
Implement the full payment lifecycle: authorization, capture, void, refund, and partial refund. Build using Shopify's Payments Apps API with encrypted credential storage, idempotent transaction handling, and comprehensive audit logging.
Security Testing & Certification
Penetration testing, PCI-DSS validation, transaction simulation across edge cases (expired cards, insufficient funds, network timeouts), and load testing to verify the gateway handles peak traffic without degradation.
Go-Live & Monitoring
Gradual rollout with real transaction monitoring, automated alerting for failed payments, and a dedicated war room for the first 48 hours. Includes 30-day post-launch support and transaction health dashboards.

Payment Gateway App Pricing

Secure, compliant payment solutions for every budget

Starter
INR 50,000starting
Single gateway integration for Shopify stores
  • One payment gateway integration
  • Standard checkout flow
  • Basic error handling & retries
  • Transaction logging
  • Merchant configuration panel
  • 14-day post-launch support
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Most Popular
Professional
INR 1,50,000starting
Multi-gateway with fraud detection and recurring billing
  • Multiple gateway support
  • Multi-currency processing
  • Fraud scoring & risk rules
  • Recurring billing engine
  • 3D Secure authentication
  • 30-day post-launch support
  • App Store submission ready
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Enterprise
Custompricing
Full payment platform with split payments and compliance
  • Unlimited gateway integrations
  • Split payment & marketplace payouts
  • Advanced ML fraud detection
  • PCI-DSS Level 1 certification support
  • Multi-store payment routing
  • Dedicated project manager
  • SLA-backed support
  • Custom settlement & reconciliation
Contact Sales

What Our Clients Say

"We needed to integrate a regional BNPL provider that Shopify didn't support natively. Edesy built a custom payment app that handles the full authorization-capture-refund cycle flawlessly. Our checkout conversion rate jumped 22% once customers saw their preferred payment option available."

HO

Head of Payments

Payments at Southeast Asian Marketplace

"The fraud detection module Edesy integrated into our Shopify payment app cut chargebacks by 68% in the first quarter. The ML scoring model adapts to new fraud patterns automatically, and the merchant dashboard makes it easy to review flagged transactions without touching code."

C

CFO

Finance at Electronics D2C Brand

"Our subscription box business processes 15,000+ recurring payments monthly through the app Edesy built. The dunning management alone recovered INR 8 lakhs in failed payments last quarter. The split payment feature for our vendor marketplace was the cherry on top."

C

Co-founder

Product at Subscription Box Startup

Frequently Asked Questions

Ready to Build Your Shopify Payment Gateway App?

Get a free consultation and detailed project estimate. Our payment experts will help you choose the right architecture, ensure compliance, and deliver a secure gateway app that maximizes conversion and minimizes fraud.

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