System integrations and API development .
Almost no company runs on a single program. The problem shows up when those programs cannot talk to each other and somebody has to copy data between them by hand. We connect your systems so the data moves on its own.
What disconnected systems actually cost
When inventory lives in one place, sales in another and accounting in a third, three problems arrive together: somebody loses hours copying data, transcription errors creep in, and you never have a reliable real-time picture of the business because each system holds a different version of the truth. Integrating is not a technical luxury; it removes all three.
What we integrate
We work both with services that already expose a public API and with legacy systems that do not and need a different approach. In the second case we build an intermediate layer that exposes the data in an orderly way.
- Payment gateways and card processors
- E-commerce platforms such as Shopify and WooCommerce
- Accounting and invoicing systems
- CRM and customer management tools
- Messaging and notification services
- Existing internal systems with no documented API
Building your own API
If your system needs other programs to connect to it — a mobile app, a customer portal, a business partner — you need an API. We design REST APIs with authentication, access control, rate limits and documentation. The documentation is not optional: an undocumented API is one nobody can use without phoning you first.
- REST APIs with token authentication
- Technical documentation for whoever will consume it
- Rate limiting and activity logging
- Versioning so existing integrations do not break
Sync and webhooks
There are two ways to keep two systems current: poll periodically to ask whether anything changed, or have the system announce the change as it happens. The second, via webhooks, is more efficient and more immediate, and it is what we implement whenever the service supports it. When it does not, we set up scheduled syncs with error handling and retries.
Technology we use
Frequently asked questions .
What is an API and why do I need one?
An API is the doorway through which two programs exchange data without human involvement. You need one when you want your system to talk to another: a mobile app to your server, your shop to your inventory, your site to your invoicing system.
Can you integrate an old system with no API?
In most cases yes, though the approach changes: instead of consuming an existing API, we build a layer that reads the system's data and exposes it in an orderly way. We need to review the specific system to confirm feasibility.
How long does an integration take?
An integration with a service that has a good API and documentation can be ready in days. A legacy system with no documentation can take weeks, because much of the work is figuring out how it stores data.
What if the external service changes its API?
It is a real risk. That is why we build integrations with error handling and alerting: if something stops responding as expected, it is detected rather than failing silently. With maintenance contracted, we handle adapting it.
Do you integrate payment gateways?
Yes. We integrate payment processors with transaction handling, webhook confirmations and operation logging. Which processor makes sense depends on the country you collect in.
Are the integrations secure?
We use token authentication, encryption in transit and secure credential storage. Keys are never committed to code and never reach the user's browser.
Want to talk about your project?
Tell us what you need and we will come back with a concrete scope and quote. The initial consultation is free.
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