Integrations & Infrastructure
API Development that connects systems
We design and build REST and GraphQL APIs that perform under load, connect to any system and are documented down to the last detail. From the first endpoint definition to a production deployment with monitoring.
Quality assurance
Only live when every detail is right.
Test overview
Status of all test categories.
What we build
REST, GraphQL and real-time APIs
From simple CRUD endpoints to event-driven architectures — we build APIs that are scalable, well-secured and easy to integrate for other teams.
- 01RESTful APIs with OpenAPI spec and interactive docs
- 02GraphQL for flexible and efficient queries
- 03WebSockets for real-time data and live dashboards
- 04Webhook integrations with retry and signature verification
Project environment
Real-time insight into your project — anytime, anywhere.
Project overview
Daily summary of your project.
Security & performance
Built for scale and security
Security and performance are not afterthoughts — they're baked into every endpoint. Your API is ready for production load from day one.
- 01OAuth2/JWT authentication with PKCE
- 02Rate limiting & throttling per plan
- 03Automatic API documentation via Scalar
- 04Versioning & backwards compatibility
Discovery
Everything mapped out — before the first sprint.
Intake meeting
Getting to know your organisation and requirements.
Integrations & management
Connect everything that can be connected
We connect your systems with the tools you already use — from payment providers to ERP systems. And after go-live we keep a close eye on everything.
- 01Payment providers (Stripe, Mollie)
- 02Custom ERP/CRM integrations
- 03Third-party SaaS APIs and webhooks
- 04Monitoring, alerting and uptime guarantee
Management & growth
Your product grows — we stay on board.
Maintenance & updates
Proactive management of your platform.
API layer for payment provider with 99.9% uptime
A payment provider asked us to replace their monolithic backend with a modern API layer. Result: 200+ endpoints, 99.9% uptime SLA and an average response time under 80ms.
200+
endpoints
99.9%
uptime
<80ms
response
APIs that make other teams happy
API-first development
We design the API before we write code. The OpenAPI contract leads — so frontend, mobile and external partners know exactly what to expect, before the first endpoint goes live.
Documentation that actually works
Our documentation is not an afterthought. We generate interactive API docs directly from the codebase, with real examples, error schemas and a sandbox for developers to test.
Monitoring & early warnings
After go-live you keep your finger on the pulse: uptime checks, p95 response time alerting, error rate dashboards and automatic notifications for anomalies. Issues are solved before customers notice them.
Everything you want to know about API development
REST is the better choice for simple CRUD operations, public APIs and scenarios where caching is crucial. GraphQL shines when multiple clients (web, mobile, partners) need the same data in different ways and you want to avoid over-fetching. We advise after the intake call on what fits best.
By default we implement OAuth2 with PKCE for interactive clients and client credentials for machine-to-machine. All endpoints run over HTTPS with HSTS, input validation prevents injection attacks, and rate limiting protects against brute-force and DDoS. Sensitive data is stored encrypted.
Absolutely. We regularly do API audits, add endpoints to existing services and migrate monolithic backends to a cleaner API layer. We always start with a technical audit so we know exactly what's there.
Our REST APIs typically run with a p99 response time under 200ms for simple CRUD operations. Through connection pooling, query optimisation, Redis caching and CDN strategies for static data, we achieve consistent performance even under high load.
We apply an explicit versioning strategy (e.g. /v1/, /v2/) and strictly maintain backwards compatibility. Breaking changes are communicated well in advance via changelogs and deprecation notices. Multiple versions can run concurrently so existing integrations don't break on upgrade.
We standardise error responses based on RFC 7807 (Problem Details for HTTP APIs) so error codes are consistent and readable for all consumers. Logs are centralised via an observability stack (e.g. Datadog, Grafana Loki) and we instrument all endpoints with distributed tracing for fast diagnosis in production.
Let's discuss your project
Schedule a free intro call. We discuss your needs and advise on the best approach.