API Development & Integration
APIs are the backbone of modern applications. We design and build robust, well-documented RESTful APIs that connect your systems, integrate with third-party services, and scale under load.
RESTful API Design
Clean, consistent API design with proper HTTP semantics, pagination, filtering, and error handling. We build APIs that other developers enjoy working with — documented, versioned, and predictable.
Payment Integration
Deep experience with Stripe and Square payment APIs, including connected accounts (OAuth), payment intents, webhook handling, 3D Secure verification, and platform fee structures.
Third-Party Integration
From email services (Postmark) and file storage (Azure Blob) to digital wallets (Apple & Google Wallet) and analytics platforms — we integrate the services your application needs.
Related Case Studies
REBLL Tickets
A multi-tenant event ticketing platform with integrated payment processing, digital wallet passes, and a Flutter mobile scanner app.
SaaS & AppointmentsRSRVD
A multi-tenant SaaS appointment booking platform for service-based businesses, with real-time availability, Stripe payments, and a complete business management dashboard.
Frequently Asked Questions
What payment providers do you integrate with?
We have production experience with Stripe (including Connect for marketplaces) and Square (including 3D Secure). We can integrate with other providers as needed.
How do you handle API security?
JWT authentication with refresh tokens, OAuth 2.0 for third-party auth, API key authentication for device/service endpoints, rate limiting, and CORS configuration. All APIs use HTTPS exclusively.
Do you provide API documentation?
Yes. We generate OpenAPI/Swagger documentation automatically from the codebase, ensuring docs are always in sync with the actual API.
Interested in API Development & Integration?
Let's discuss your project. No commitment, no jargon — just a conversation about what you need.
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