REST APIs
that connect systems
Modern applications need stable interfaces. I develop secure, documented APIs that connect your systems seamlessly.
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Systems Don't Talk
ERP, CRM, shop – all isolated solutions without connection. Data is copied manually.
Manual Processes
Excel export, import, copy-paste – time-consuming and error-prone.
Insecure Connection
Existing interfaces without authentication – a security risk.
No Documentation
Nobody documented the old API – every change is guesswork.
APIs Are My Speciality
I am Vincent, a backend developer from Basel. I have been building APIs since before REST became the standard – and know all the pitfalls.
From simple webhook integration to complex microservices architecture – I develop interfaces that work, scale and are documented.
My API Services
From conception to documentation – everything from one source
REST API Development
Clean, RESTful APIs following best practices – with versioning, pagination and error handling.
Security & Auth
OAuth 2.0, JWT tokens, API keys – secure authentication following industry standards.
OpenAPI Documentation
Interactive API documentation with Swagger/OpenAPI – for easy integration.
Webhooks & Events
Real-time notifications when data changes – for immediate reactions.
Third-Party Integration
Connection to external APIs: payment providers, CRM, ERP, shipping services.
Testing & Monitoring
Automated tests, rate limiting and monitoring for stable APIs.
What Sets Me Apart as an API Developer
Not just writing code, but designing interfaces that others enjoy using.
Clean Code
RESTful design following best practices – consistent and predictable
Documentation First
Every API is documented – with OpenAPI/Swagger
Security by Design
Authentication and authorisation from the start
Performance-Optimised
Caching, rate limiting, efficient queries
How Your API Is Built
From requirement to production use
Requirements
What data? Which systems? Who uses the API? We define the scope together.
API Design
Endpoints, resources, authentication – I design the API structure.
Development
Implementation with tests and documentation – iteratively with regular feedback.
Go Live
Deployment, set up monitoring and handover of complete documentation.
Typical API Projects
Mobile App Backend
REST API as a backend for iOS/Android apps with user authentication and push notifications.
E-Commerce Integration
Shop connection to ERP, PIM or inventory management – products, orders, stock levels in sync.
B2B Interfaces
Partner APIs for automated data exchange – orders, delivery status, invoices.
"Our systems were completely isolated – now orders flow automatically from the shop into the ERP. Vincent not only built the API but also documented it superbly. New developers find their way immediately."
Frequently Asked Questions
Ready to Connect Your Systems?
Let us talk about your API project. I will get back to you within 24 hours.