Skip to main content

Custom API design and integration development

Connecting your application to external systems and third-party services. Clean API design, reliable integrations, and documentation that will make your next developer happy.

Modern applications rarely operate in isolation. They communicate with payment providers, CRM systems, logistics platforms, and dozens of other services. We design and build the API layer that makes all these connections reliable.

Clean API design, proper error handling, good documentation — so your next developer understands what’s been built and can easily continue developing on it.

Connecting systems that don’t know each other yet

Your webshop doesn’t know what your CRM knows. Your accounting software doesn’t know what your order management system knows. So someone in your team ends up manually transferring data from one system to another every week. That’s a waste of time — and a source of errors.

We design and build API integrations that make systems work together. REST or GraphQL, incoming or outgoing, realtime or via background processes. Clean API design with documentation, so the next developer — or the next tool — knows how it works.

Typical integrations we build

Webshop ↔ accounting software (Exact, Moneybird, Twinfield). Reservation system ↔ internal scheduling. CRM ↔ email marketing. ERP ↔ web portal. Custom endpoints for partners who need data. Webhooks for realtime triggers between systems.

Our approach

Clear, honest, and predictable — from start to delivery.

1

Introduction

You tell us what’s on your mind. We ask the right questions. No pressure, just genuine attention.

2

Plan & Quote

We create a concrete plan with scope, schedule, and price. No surprises afterwards.

3

Execution

We build, test, and keep you informed. No surprises, just results.

4

Delivery & Support

Going live is the start, not the end. We’re here if anything comes up.

Interested in API Design & Integration?

Tell us what you need. We take an honest look — no strings attached and without detours.

Systems that communicate — reliably. Integrations that keep working even when an external party updates their API.

Frequently Asked Questions

Do you build REST or GraphQL APIs?
REST is standard; GraphQL when the use case calls for it. We choose what fits your product — not what happens to be popular.
Are the APIs documented?
Always. We document APIs with OpenAPI/Swagger so endpoints, parameters, and responses are clear to everyone working with them.
Can you also integrate third-party APIs?
Yes. We build integrations with payment providers, ERPs, CRMs, booking systems, and more — depending on what your product needs.

Want to connect your application to external systems?

Tell us about your project. We’ll immediately share our thoughts — no sales pitch, no obligations.