Codelaro
All Services
Core Capability

Payment Integration.

We integrate payment gateways, develop secure checkout experiences, and implement subscription billing and payment automation for websites, mobile applications, SaaS platforms, and online businesses.

LIVE_SPEC_RUNTIME
Payment Gateway Orchestration
PCI-DSS LEVEL 1
Stripe, Paddle & LemonSqueezy

Dynamic Smart Routing & Local Payment Methods

Idempotency & Reconcile Engine

Zero duplicate billing on network dropouts

Failed Payment Recovery (Dunning)

Smart retries & automated customer card update flows

Payment Authorization Rate99.98% Success
Enterprise SLA & Production-Ready Codebase
EXPLORE_SPECS

What we deliver

What you get with Payment Integration.

A reliable payment experience is an essential part of running a digital business. Whether customers are purchasing products, subscribing to software, or paying for online services, payment processing should be straightforward, secure, and properly integrated with your application. At Codelaro, we provide payment gateway integration services for e-commerce websites, mobile applications, SaaS platforms, and custom business software. We develop payment functionality around your business requirements, supported payment providers, and customer experience.

Our payment integration services include checkout development, recurring billing, payment API integration, transaction status handling, webhook processing, and payment-related workflow automation. We work with suitable payment providers and implement integration patterns that consider authentication, secure communication, error handling, and accurate payment status updates. From selecting an appropriate integration approach to testing and deployment, we focus on building maintainable payment functionality that works with your existing software and operational processes.

Your deliverable map

Explore the solutions, key inclusions, and outcomes available for this service.

05 delivery areas
  1. Featured deliverable

    Payment gateway integrations

    Provider-connected payment functionality built around your product, customers, and supported markets.

    The intended result

    A payment flow connected to your selected provider.

    What it can include

    • Provider API or hosted checkout integration
    • Payment status and confirmation flows
    • Environment setup and integration testing

    Exact features and integrations are defined in your project scope.

  1. Custom checkout experiences

    Clear purchase journeys tailored to your product and your selected payment infrastructure.

    What it can include

    • Checkout interface integration
    • Payment error and retry states
    • Confirmation and receipt workflows

    The intended result

    A checkout experience shaped around your customers.

  2. Subscriptions & recurring billing

    Recurring payment features appropriate to your pricing plans and provider capabilities.

    What it can include

    • Plan and subscription lifecycle flows
    • Billing-event integrations
    • Cancellation and account-state handling

    The intended result

    Recurring billing features aligned with your business model.

  3. Payment events & automation

    Useful backend workflows triggered by changes in payment or billing status.

    What it can include

    • Webhook validation and processing
    • Order and access updates
    • Error handling and operational alerts

    The intended result

    More reliable coordination between payments and your product.

  4. Payment operations & testing

    Appropriate integration safeguards and visibility, without claiming provider-level certification.

    What it can include

    • Provider-recommended integration practices
    • Sandbox and exception-case testing
    • Payment event logs and handover

    The intended result

    A payment integration with clearer operational procedures.

Every project is different. The exact deliverables, integrations, and handover items are agreed with you before development begins.

Discuss your scope

Our capabilities

Expertise that Brings Ideas to Life.

Explore the core capabilities behind our payment integration services, tailored to your project's requirements and long-term goals.

08 core capabilities

  • Payment Gateway & API Integration

  • Secure Online Checkout Development

  • Subscription & Recurring Payment Integration

  • E-commerce & Mobile Payment Integration

  • Payment Webhooks & Transaction Automation

  • Refund & Payment Status Management

  • Multi-Currency & International Payment Integration

  • Payment System Modernization & Optimization

Real-world applications

Built for RealBusiness Needs.

Application overview08 use cases
  1. Payment Gateway Integration

    Connect your website, mobile application, or business platform with a compatible payment gateway. We integrate supported payment APIs and implement the necessary backend functionality for initiating transactions, receiving payment updates, and connecting payment activity with your application.

  2. E-commerce Checkout Integration

    Implement online payment functionality for custom e-commerce websites, Shopify stores, WooCommerce websites, and other compatible commerce platforms. Depending on the selected provider and platform, we configure supported checkout methods, order-payment connections, transaction updates, and relevant administrative workflows.

  3. Subscription & Recurring Billing

    Develop payment functionality for SaaS platforms, membership applications, and other subscription-based businesses. Depending on your requirements and selected billing provider, we can integrate subscription plans, recurring payment events, billing status updates, account access rules, and appropriate cancellation workflows.

  4. Mobile Application Payments

    Connect mobile applications with suitable payment services to support relevant purchases and transactions. We assess your intended payment model, available providers, and applicable platform requirements before developing the integration. Payments for certain digital products and subscriptions may need to use platform-specific billing systems.

  5. Payment Webhooks & Automation

    Automate payment-related business processes through supported payment provider webhooks and backend integrations. Depending on your requirements, workflows can update order statuses, activate subscriptions, generate relevant notifications, record payment events, and synchronize information with compatible internal systems.

  6. International & Multi-Currency Payments

    Integrate payment services that support the currencies and geographic markets relevant to your business. We assess provider availability, supported payment methods, settlement options, and applicable integration requirements before implementing international payment functionality.

  7. Marketplace Payment Integrations

    Develop payment functionality for platforms that connect buyers and multiple sellers. Depending on the selected payment provider and your business eligibility, integrations may include seller onboarding connections, transaction tracking, platform fees, and supported marketplace payment or payout functionality.

  8. Payment Management & Reporting

    Connect payment activity with your existing administrative dashboards and business applications. We develop interfaces and integrations for accessing relevant transaction information, monitoring payment statuses, managing supported refund workflows, and generating payment-related operational reports.

Every project has different requirements. These examples illustrate how our expertise can be applied to your business.

Code. Launch. Grow.

Our development approach

From the first ideato the final delivery.

Explore how we approach payment integration, combining thoughtful planning, technical execution, and a delivery process adapted to your project.

The delivery journey

06 phases
  1. 01

    Phase 01

    Discovery & Payment Strategy

    We begin by understanding your business model, target markets, supported currencies, payment requirements, and existing application architecture. Together, we identify the required payment functionality, review relevant operational workflows, and establish the integration scope and technical priorities.

    Development process
  2. 02

    Phase 02

    Provider & Architecture Planning

    We assess suitable payment providers based on their geographic availability, supported features, documentation, integration methods, and your business eligibility. We then plan the payment architecture, including checkout interactions, backend communication, transaction records, webhook processing, and relevant security considerations.

    Development process
  3. 03

    Phase 03

    Checkout & API Integration

    We implement the agreed payment functionality using the selected provider’s supported integration methods. Depending on your requirements, this may include hosted checkout, payment API integration, subscription billing, application-specific payment interfaces, and connections between your payment provider and existing backend systems.

    Development process
  4. 04

    Phase 04

    Transaction & Workflow Automation

    We develop the backend workflows needed to process payment events and maintain appropriate application records. Depending on the project, this may include webhook verification, transaction status updates, duplicate-event protection, subscription activation, refund-related functionality, notifications, and suitable error-handling procedures.

    Development process
  5. 05

    Phase 05

    Testing & Deployment

    We test the payment integration using the available provider testing environment and agreed transaction scenarios. This includes reviewing successful and unsuccessful payment flows, relevant webhook events, transaction status handling, and integration behavior. After addressing identified issues, we prepare the integration for production deployment and complete the agreed launch checks.

    Development process
  6. 06

    Phase 06

    Monitoring & Ongoing Support

    Following deployment, we provide the agreed technical documentation and handover support. Depending on your maintenance arrangement, we can troubleshoot payment integration issues, review transaction-related errors, update provider integrations, and implement additional payment functionality as your business requirements evolve.

    Delivery

Frequently asked

Questions aboutPayment Integration?

Everything you need to know about our payment integration services, from planning and development to delivery and ongoing considerations.

Can't find what you're looking for?

Ask us directly

Codelaro provides payment gateway integration services for websites, mobile applications, SaaS platforms, e-commerce stores, and custom business software. Our services include checkout development, subscription billing integration, payment API integration, payment webhook automation, transaction status management, and improvements to existing payment implementations. We tailor the integration to your business model, selected provider, and technical requirements.

Still have questions? We're happy to discuss your project.

17 questions

Let's build

Have a project in mind?Let's build it together.

Planning a payment integration project? Share your idea with us, and let's explore how we can bring it to life.

Code.

Shape the idea

Launch.

Bring it to life

Grow.

Keep moving forward