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Payment Solutions

Payment gateway integration and aggregation for eCommerce and enterprise — supporting regional and international payment methods with high-volume transaction handling on scalable cloud infrastructure.

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What is payment gateway integration?

Payment gateway integration connects your checkout to a provider such as HyperPay, Moyasar, PayTabs or Checkout.com, so customers can pay with mada, Apple Pay, STC Pay or buy-now-pay-later methods like Tabby and Tamara. Mantiqi builds these integrations for Saudi merchants on hosted payment pages by default, which keeps card data off your servers, and links each successful payment to a ZATCA-compliant e-invoice.

Typical timeline: Gateway selection in week 1, integration build in weeks 2–6, reconciliation tooling in weeks 5–8.

Why this matters

Saudi payment integration is harder than the gateway docs make it look. Local methods (mada, STC Pay, Tabby, Tamara) each have their own quirks; SAMA cyber framework + PCI DSS requirements add compliance overhead; under ZATCA Phase 2 invoicing, every standard tax invoice is cleared through the FATOORA platform before it is shared with the buyer, and simplified invoices are reported within 24 hours of issue; and once you scale past a few thousand transactions a day, the naive integration patterns the gateway tutorials show start dropping payments under load. Mantiqi has shipped payment integrations and built a high-volume payment aggregator for e-commerce merchants for our client Pay-Sol — we know which gateway behaves how, and we build flows that survive Black Friday traffic and SAMA audits both.

What We Deliver

Payment Gateway Integration
Payment Aggregator Development
eCommerce Payment Flows
AWS Cloud Deployment
High-Volume Transaction Handling
Security & PCI Compliance

How we deliver

  1. 01

    Method + gateway selection

    Week 1

    We map your customer mix (B2C / B2B / cross-border), ranking which payment methods you actually need vs which add operational drag, and produce a written recommendation covering gateway, fees per method, settlement timing, and the integration pattern that fits your stack.

    • Method × customer-segment matrix
    • Gateway shortlist with fee analysis
    • Settlement + reconciliation pattern
    • PCI scope assessment
  2. 02

    Integration build

    Weeks 2–6

    Gateway SDK integration with hosted payment pages or full server-to-server (Direct API) depending on PCI scope. Idempotent payment intents, webhook handlers with retry, refund + partial-refund flows, and ZATCA invoice issuance triggered by successful capture.

    • Hosted-page or Direct-API integration
    • Idempotent payment-intent layer
    • Webhook handlers with replay + retry
    • ZATCA invoice trigger on capture
  3. 03

    Reconciliation + ops tooling

    Weeks 5–8

    Reconciliation pipeline matching gateway settlement files against your orders, exception dashboard for stuck or mismatched transactions, refund queue with approval workflow, and audit-ready transaction history with PCI-safe redaction.

    • Daily settlement reconciliation
    • Exception dashboard + alerting
    • Refund workflow with approvals
    • PCI-redacted audit trail
  4. 04

    Scale + monitor

    Ongoing

    As volume grows, monitor authorization rates by method/issuer, A/B test fallback gateway routing, optimize fees by switching method-to-gateway routing per transaction profile. Every routing change is measured against the authorization-rate baseline captured before it went live.

    • Per-method authorization-rate dashboards
    • Fallback-gateway routing logic
    • Quarterly fee + decline-code review
    • On-call coverage for payment incidents

Frequently asked questions

Locally: HyperPay, Moyasar, Checkout.com (KSA tenant), PayTabs, Tap, STC Pay, Tabby + Tamara for BNPL. Internationally: Stripe (for cross-border), Adyen (for enterprise multi-region), and direct mada acquirer integrations. We've also built a high-volume payment aggregator on AWS for our client Pay-Sol — so we know what scaling pain looks like from both sides.

Still have questions?

Our team is ready to help. Reach out and we'll get back to you as soon as possible.

Free offer

Free payment-architecture review

Send us your current payment setup (gateways, methods, scale, pain points). We'll send back a written review covering your top 3 risks (PCI scope, scale ceiling, reconciliation gaps), recommended gateway / method changes, and a remediation plan. No sales call.

Get the review