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API Integration

API Integration — Connect Your Product to the Services It Needs

Your product is only as good as its integrations. We connect payment gateways, VTU providers, SMS services, banking APIs, and third-party platforms into cohesive, reliable workflows.

Why build with ScalerDev

Payment gateway setup

Paystack, Flutterwave, and bank APIs with webhooks and reconciliation.

VTU & utility providers

Airtime, data, cable, electricity, and betting service integrations.

Reliable error handling

Retries, fallbacks, logging, and admin visibility into integration health.

Our development process

01

Audit

Review required integrations and existing connections.

02

Connect

Implement API clients, webhooks, and data mapping.

03

Test

Sandbox testing, edge cases, and failure scenarios.

04

Monitor

Production monitoring and alerting for integration issues.

Common use cases

  • Payment gateway integration for e-commerce
  • VTU provider integration for recharge platforms
  • SMS and notification service integration
  • Bank virtual account setup

Technologies we use

PaystackFlutterwaveREST APIsWebhooksNode.jsPostgreSQL

Industries we serve

FintechVTUE-commerceSaaS

Frequently asked questions

Can you fix broken integrations in an existing product?
Yes. We diagnose integration failures, improve webhook handling, and rebuild unreliable connections.
Do you handle webhook reconciliation?
Yes. We build webhook handlers, idempotency checks, and admin tools to reconcile transactions.

Ready to build?

Tell us about your api integrationproject. We'll reply on WhatsApp within 24 hours.

Talk to Our Development Team