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GS Tech Systems

API Integration

Connect your systems so data flows without re-typing

We design and build integrations between the applications you rely on, with logging, retries and alerts so you know every transaction arrived.

The challenge

Problems we solve

  • 01

    Double data entry

    Orders, invoices and payments are typed into two or three systems.

  • 02

    Out-of-sync data

    Stock, prices and customer records differ between systems.

  • 03

    Silent failures

    Integrations break without anyone noticing until customers complain.

  • 04

    Vendor lock-in

    Each new tool needs its own fragile, one-off connection.

What's included

What you get

  • ERP & CRM

    Customers, orders, invoices and payments synchronised between ERP and CRM.

  • E-commerce

    Shopify, WooCommerce and marketplace orders and stock synced with your ERP.

  • Payments & banks

    Payment gateways and bank statements reconciled automatically.

  • Logistics

    Courier booking, tracking numbers and delivery status pushed back to orders.

  • Custom APIs

    Secure, documented REST APIs for your partners and mobile apps.

  • Monitoring

    Central logs, automatic retries and alerts on failed messages.

Our process

  1. 1

    Discover

    Understand your goals, processes and constraints.

  2. 2

    Plan

    Agree scope, timeline, milestones and price.

  3. 3

    Build

    Configure and develop in short, reviewable cycles.

  4. 4

    Test

    Verify with your team using real scenarios and data.

  5. 5

    Deploy

    Go live with training and hands-on support.

  6. 6

    Support

    Monitor, maintain and improve after launch.

Platforms & technologies

  • REST
  • SOAP
  • Webhooks
  • GraphQL
  • SFTP

Frequently asked questions

Which protocols do you support?

REST, SOAP, GraphQL, webhooks, SFTP file exchange and database-level integration where APIs are not available.

What if a system has no API?

We can integrate through file exports, database connectors or scheduled imports, and document the limitations.

How do you keep integrations secure?

Credentials are stored as secrets, traffic is encrypted, and each integration has only the permissions it needs.

Can integrations be real-time?

Yes, using webhooks or event queues where both systems support it. Otherwise we schedule syncs as often as the APIs allow.

Let's discuss your API Integration project

Get a free consultation and a clear, fixed quote.