Payment Engineering · PCI-DSS Aware

Payment Gateway Integration Services for Ecommerce, SaaS, and Marketplaces

Unlock seamless checkout, accelerate revenue, and automate reconciliation with Payment Gateway Integration Services engineered for ecommerce, SaaS, and marketplaces. OrangeMantra delivers scalable, PCI-DSS compliant integration across Stripe, Razorpay, PayU, PayPal, and custom rails. Built to drive conversion under real volume, not just clear sandbox tests.

24+Years in business
2000+Clients served
750+eCommerce projects
95%On-time delivery
Trusted by enterprises across retail, manufacturing, BFSI, logistics, and FMCG
Payment Integration Challenges We Solve

Eliminate the Friction That Quietly Drains Checkout Revenue

Connecting to Stripe or Razorpay takes hours. The real engineering challenge starts after the first hundred transactions, when reconciliation drifts, retries loop, and edge cases erode conversion. Our payment integration services automate the failure paths competitors leave to spreadsheets.

  1. 01

    Reconciliation That Quietly Drifts

    Order, payment, and settlement status sit in three systems with three clocks. Automate real-time reconciliation across acquirer, OMS, and ERP, or finance closes the books on a spreadsheet.

  2. 02

    Retry Logic That Creates Duplicate Charges

    Networks drop, customers reload, webhooks fire late. Naive retries trigger chargebacks. Streamline idempotent payment flows by design, not after the post-mortem.

  3. 03

    Recurring Billing Edge Cases

    Soft declines, card expiries, mandate failures, regulator-imposed authentication. Each one silently breaks subscription revenue when intelligent dunning and retry orchestration are missing.

  4. 04

    PCI-DSS Scope Drift

    A small checkout change can push a merchant from SAQ-A to SAQ-D and trigger a full compliance review. Robust engineering keeps PCI-DSS compliant integration aligned with every release.

What We Deliver

Comprehensive Payment Gateway Integration Services Built for Scale

Scoping, architecture, integration, certification, launch, and operational hardening. OrangeMantra delivers tailored, full-cycle payment gateway integration for ecommerce, marketplaces, subscription, fintech, and enterprise commerce, engineered to drive checkout conversion and automate finance operations.

  • Single-gateway integration on Shopify, Magento, WooCommerce, or custom stacks. See the Eicher Magento case study.
  • Multi-gateway orchestration with smart routing, fallback, and BIN-aware acceptance
  • Marketplace split payments, escrow flows, and KYC-tied seller payouts
  • Subscription billing, recurring payment management, and RBI e-mandate handling
  • Real-time reconciliation engine and dispute automation, proven in B2B order management work at volume
Capabilities

Comprehensive Payment Gateway Integration Services That Drive Conversion

Every capability below is engineered to eliminate a production failure mode and unlock scalable, revenue-safe checkout. We build for resilience first, then accelerate the happy path.

PCI-DSS Compliant Integration

Streamline compliance with hosted checkout, tokenization, network tokens, and vault strategies that keep cardholder data off your servers and hold the PCI questionnaire at SAQ-A wherever the business model allows.

Robust Webhook Orchestration

Signed payloads, replay-safe processing, dead-letter queues, and real-time reconciliation jobs engineered to survive provider outages.

Smart Routing and Orchestration

Automate BIN-based and cost-based routing with intelligent fallback across processors. Tailored for cross-border merchants and high-volume sellers negotiating MDR across acquirers.

Subscription Billing and Recurring Payments

Power scalable subscription billing with mandate registration, RBI e-mandate compliance, retry logic, dunning, proration, and clean revenue recognition handoffs to finance.

Multi-Currency Processing

Unlock global revenue with local acquiring, FX margin control, and presentment currency logic tailored per market.

Fraud Prevention and Chargeback Automation

Drive safer checkout with risk rules, 3DS2 frictionless flows, device fingerprinting, velocity checks, and automated chargeback evidence pulled directly from your OMS. Engineered with your fraud provider, not bolted on after launch.

Already live with a gateway? Streamline performance with an audit that quantifies revenue gaps and prioritizes the highest-impact fixes first.

Discuss your payment gateway integration
Methodology

Our Five-Phase Payment Gateway Integration Process

A proven, scoping-to-launch methodology refined across 750+ eCommerce projects and tailored per platform, geography, and risk profile to accelerate time to revenue.

Discovery and Scoping
Stakeholder interviews, payment method mix, geography review, settlement and reconciliation needs, fraud posture, and PCI scope assessment. Deliverables include a gateway shortlist, tailored integration plan, PCI scope statement, and a realistic timeline.
Architecture and Design
Integration mode, idempotency, robust webhook patterns, retry policy, payment state model, and observability plan. Platform-native where it accelerates delivery, custom where platform constraints would create operational debt.
Development and API Integration
Agile sprints with CI/CD, sandbox-first development, contract tests against provider APIs, structured logging, and feature flags for staged rollout. Every release passes a security review on cardholder data and a finance review on reconciliation logic.
Testing, Certification, and UAT
Comprehensive functional testing across success, failure, soft decline, and 3DS challenge paths. Load testing for peak events. Provider-side certification where required. Indian merchants get RBI mandate flow testing and tokenization compliance checks.
Launch and Operational Hardening
Phased rollout, real-time monitoring, on-call playbooks for payment incidents, reconciliation tuning, and quarterly review of decline rates, chargeback ratios, and gateway cost. Where most generic builds fall apart, we treat operational hardening as a core deliverable.
Strategic Tech Stack

The Scalable Payment and Commerce Stack We Ship On

From PCI-DSS aware gateways to commerce platforms to the engineering languages that power custom checkout, our tech stack is production-tested across 750+ ecommerce engagements and tailored to drive real business outcomes.

Stripe logo
StripeCards, Connect, Billing
Razorpay logo
RazorpayUPI, cards, netbanking
PU
PayUIndia, LATAM, CEE
PayPal logo
PayPalCross-border, Express
A
AdyenEnterprise unified commerce
CF
CashfreePayments, payouts
CA
CCAvenueMulti-currency, alt methods
Braintree logo
BraintreeDrop-in UI, vaulting
AN
Authorize.NetUS merchants, recurring
W
WorldlineEnterprise Europe
Square logo
SquareSMB US, online and POS
Klarna logo
Klarna, Affirm, AfterpayBNPL integrations
Shopify logo
Shopify PlusB2C and B2B storefronts
AC
Adobe CommerceMagento enterprise
WooCommerce logo
WooCommerceWordPress commerce
BC
BigCommerceHeadless and hosted
SF
Salesforce CommerceB2C / B2B Cloud
SAP Commerce logo
SAP CommerceEnterprise B2B
PrestaShop logo
PrestaShopOpen-source SMB
Node.js logo
Node.jsAsync webhook handlers
.NET logo
.NETEnterprise integrations
Java logo
JavaBanking-grade systems
PHP logo
PHPMagento and WordPress
Use Cases

Payment Gateways We Integrate to Power Seamless Checkout

Every payment provider brings its own checkout patterns, settlement timing, and compliance surface. OrangeMantra delivers tailored payment gateway integration across global processors and alternative-payment methods, engineered to streamline conversion and accelerate global revenue.

Discuss your payment gateway integration

Stripe Integration

Payment Element + Checkout
Stripe Connect marketplaces
Subscription + recurring billing
Tax + Radar fraud

PayPal Integration

Express Checkout + Pay Later
Braintree merchant flow
Multi-currency settlement
Subscription billing

Razorpay Integration

UPI + cards + wallets
Razorpay Routes marketplaces
Subscriptions engine
Smart Collect + Payouts

Buy Now Pay Later

Klarna + Affirm + Afterpay
Risk-aware checkout placement
Settlement reconciliation
Returns + refund handling

Crypto Payment Integration

Coinbase Commerce + BitPay
On-chain settlement
Stablecoin + fiat conversion
Multi-currency wallets

Stripe Integration

Payment Element + Checkout
Stripe Connect marketplaces
Subscription + recurring billing
Tax + Radar fraud

PayPal Integration

Express Checkout + Pay Later
Braintree merchant flow
Multi-currency settlement
Subscription billing

Razorpay Integration

UPI + cards + wallets
Razorpay Routes marketplaces
Subscriptions engine
Smart Collect + Payouts

Buy Now Pay Later

Klarna + Affirm + Afterpay
Risk-aware checkout placement
Settlement reconciliation
Returns + refund handling

Crypto Payment Integration

Coinbase Commerce + BitPay
On-chain settlement
Stablecoin + fiat conversion
Multi-currency wallets

PayPal Integration

Express Checkout + Pay Later
Braintree merchant flow
Multi-currency settlement
Subscription billing

Razorpay Integration

UPI + cards + wallets
Razorpay Routes marketplaces
Subscriptions engine
Smart Collect + Payouts

Buy Now Pay Later

Klarna + Affirm + Afterpay
Risk-aware checkout placement
Settlement reconciliation
Returns + refund handling

Crypto Payment Integration

Coinbase Commerce + BitPay
On-chain settlement
Stablecoin + fiat conversion
Multi-currency wallets

Stripe Integration

Payment Element + Checkout
Stripe Connect marketplaces
Subscription + recurring billing
Tax + Radar fraud

PayPal Integration

Express Checkout + Pay Later
Braintree merchant flow
Multi-currency settlement
Subscription billing

Razorpay Integration

UPI + cards + wallets
Razorpay Routes marketplaces
Subscriptions engine
Smart Collect + Payouts

Buy Now Pay Later

Klarna + Affirm + Afterpay
Risk-aware checkout placement
Settlement reconciliation
Returns + refund handling

Crypto Payment Integration

Coinbase Commerce + BitPay
On-chain settlement
Stablecoin + fiat conversion
Multi-currency wallets

Stripe Integration

Payment Element + Checkout
Stripe Connect marketplaces
Subscription + recurring billing
Tax + Radar fraud

Buy Now Pay Later

Klarna + Affirm + Afterpay
Risk-aware checkout placement
Settlement reconciliation
Returns + refund handling

Crypto Payment Integration

Coinbase Commerce + BitPay
On-chain settlement
Stablecoin + fiat conversion
Multi-currency wallets

Stripe Integration

Payment Element + Checkout
Stripe Connect marketplaces
Subscription + recurring billing
Tax + Radar fraud

PayPal Integration

Express Checkout + Pay Later
Braintree merchant flow
Multi-currency settlement
Subscription billing

Razorpay Integration

UPI + cards + wallets
Razorpay Routes marketplaces
Subscriptions engine
Smart Collect + Payouts

Buy Now Pay Later

Klarna + Affirm + Afterpay
Risk-aware checkout placement
Settlement reconciliation
Returns + refund handling

Crypto Payment Integration

Coinbase Commerce + BitPay
On-chain settlement
Stablecoin + fiat conversion
Multi-currency wallets

Stripe Integration

Payment Element + Checkout
Stripe Connect marketplaces
Subscription + recurring billing
Tax + Radar fraud

PayPal Integration

Express Checkout + Pay Later
Braintree merchant flow
Multi-currency settlement
Subscription billing

Razorpay Integration

UPI + cards + wallets
Razorpay Routes marketplaces
Subscriptions engine
Smart Collect + Payouts
Industries

Tailored Payment Integration Across Every Industry We Serve

Marketplace splits, subscription dunning, regulated checkout, high-AOV B2B invoicing. Our payment integration services automate revenue flows across verticals, with patterns proven in production.

[1]D2C and Retail Ecommerce
Checkout conversion COD reconciliation Refund automation Prepaid incentives
Know more
[2]Fintech and BFSI
Account funding Payouts and disbursals Lending repayments Regulator-aware auth
Know more
[3]SaaS and Subscription
Recurring billing Dunning and retries Usage-based pricing Revenue recognition
Know more
[4]Travel and Hospitality
Multi-currency presentment Deposit and balance flows Cancellation refunds 3DS on high-ticket
Know more
[5]Marketplaces
Split payments Escrow flows KYC-tied payouts Dispute resolution
Know more
[6]B2B Commerce
Invoice-based checkout Net-terms financing PO workflows ERP-side reconciliation
Know more
Why OrangeMantra

Why Choose Us for Payment Gateway Integration Services

Twenty-four years across commerce, BFSI, and SaaS means we have seen payment integrations break in most of the ways they can. We bring that operational depth to every engagement so your team accelerates time to revenue without inheriting the same failure modes.

Our partner ecosystem spans Shopify, Adobe Commerce, Salesforce, SAP, ServiceNow, AWS, Azure, and GCP, giving you platform-native depth across the systems your scalable payment integration lives inside.

24+Years building commerce
2000+Clients served
750+eCommerce projects
95%On-time delivery
Awards and Recognition

Recognition That Travels with the Work

Independent recognition from industry bodies and analyst platforms. Listed only where verifiable.

CIO Choice Recognition badge CIO Choice Recognition
Mobility Consulting
WARC Award badge WARC Award
Clutch Top App Development recognition badge Clutch Top App
Development Company
Globus Certifications GCPL badge Globus Certifications
(GCPL)
NASSCOM membership badge NASSCOM
Member
Clutch verified reviews badge Clutch Verified
Reviews
Outcomes

How Our Payment Gateway Integration Services Drive Business Outcomes

Real outcomes from recent engagements where scalable payment integration unlocked checkout revenue, accelerated reconciliation, and streamlined finance operations. Explore the case study library covering payment gateway integration and commerce work.

Eicher · Magento + SAP

Magento commerce stack with SAP-aligned payment reconciliation.

Commercial vehicles parts and accessories sold through a Magento storefront, with payment flows tied into SAP for downstream reconciliation and inventory.

Outcome: unified order-to-cash visibility across commerce and ERP.
Read case study
PVR · Multiplex ticketing app

Ticketing checkout designed for peak weekend load and saved payment methods.

Custom app for ticket booking, seat selection, and data capture. The payment layer handles burst traffic on Friday evenings and stores tokens for repeat bookings.

Outcome: smoother high-frequency checkout under peak entertainment-industry load.
Read case study
Shopify + Dynamics 365

Multi-gateway routing replaced a single processor losing to soft declines.

We layered Razorpay with a cross-border processor using cost-based smart routing and unified reconciliation, recovering revenue lost to BIN-level routing gaps.

Outcome: 23% reduction in operational costs across the integrated stack.
Read case study
B2B order management

Split payments and reconciliation rebuilt around seller payouts.

Multi-seller settlements were running on spreadsheets. We rebuilt the payment layer with split settlements, KYC-tied payouts, and an automated reconciliation engine wired into the OMS.

Outcome: 40% reduction in order processing time, 36% improvement in sales accuracy.
Read case study
Quick Commerce · Ghana

Magento checkout with regional payment methods.

Ghana's largest retail chain needed checkout that handled local payment methods, COD reliability, and reconciliation for a market with thinner card penetration than platform defaults assumed.

Outcome: regionally appropriate checkout with measurable improvement in completed orders.
Read case study
Decathlon · Sports retail

Checkout and commerce engineering for omnichannel retail.

Digital commerce engineering across web and in-store, with payment and order flows that hold up in a high-volume sports retail context.

Outcome: scalable checkout pattern for omnichannel sports retail.
Read case study
Field Notes

Our Clients Absolutely Love Us

Real reviews from teams we have shipped with. Verified on Clutch and GoodFirms.

FAQ

Common Questions About Our Payment Gateway Integration Services

Straight answers to the questions CTOs, finance leads, and product managers ask when scoping payment integration services and planning their checkout roadmap.

What are Payment Gateway Integration Services?
Payment Gateway Integration Services are the engineering programs that connect your website, app, or marketplace to one or more payment processors to power seamless checkout across cards, UPI, wallets, net banking, and bank transfers. OrangeMantra delivers API integration, tokenization, 3DS authentication, webhook orchestration, automated reconciliation, and PCI-DSS compliant integration that scales with your business.
How long does payment gateway integration take?
A standard single-gateway integration on a mainstream ecommerce platform typically takes two to four weeks. Multi-gateway orchestration, marketplace split payments, and subscription billing flows extend timelines to six to twelve weeks. OrangeMantra tailors the timeline to your platform, payment method mix, fraud posture, and reconciliation requirements.
Which payment gateway is best for an ecommerce site?
There is no single best payment gateway. The right choice depends on geography, average ticket size, payment method mix, settlement timing, MDR economics, and platform compatibility. Indian ecommerce typically pairs Razorpay or Cashfree for domestic methods with Stripe or PayPal for cross-border. Marketplaces need split-payment processors. OrangeMantra runs a scoping workshop before recommending the stack that drives checkout conversion.
Are your payment integrations PCI-DSS compliant by default?
Compliance depends on integration mode. Hosted checkout and tokenized flows keep cardholder data off your servers and hold PCI scope at SAQ-A. Direct API integrations that touch raw card data carry full SAQ-D scope. OrangeMantra engineers PCI-DSS compliant integration to keep audit scope as narrow as the business model allows.
Can your payment integration services handle recurring subscriptions and saved cards?
Yes. Our payment integration services automate subscription billing with tokenized card storage, mandate registration where regulators require it, intelligent retry logic for soft declines, and dunning workflows for hard failures. India adds RBI e-mandate requirements for recurring card payments, and OrangeMantra builds those flows with platform-native tools or custom billing engines.
How much does payment gateway integration cost in India?
Cost scales with integration depth, the number of gateways orchestrated, custom flows like split payments or subscriptions, and reconciliation requirements. A Shopify single-gateway build is far less than a multi-gateway marketplace with payouts. OrangeMantra shares a fixed-scope estimate after a 60-minute scoping call, tailored to your stack, geography, and growth targets. Explore related ecommerce payment gateway integration and web development services.