Custom API Development & API Design
Pixeltre designs, builds, documents, and scales the backend APIs your own product runs on REST, GraphQL, and microservices built from scratch with clean architecture, authentication, and versioning. Instead of only plugging systems together, we build the API layer your developers will actually use.
Design & Build Your Own APIs
We design and build the API layer from scratch for your web app, mobile app, or headless backend — a single, clean, well-structured API that all your clients can rely on. Every endpoint we create is built to REST or GraphQL standards: secure, versioned, and optimised for performance so your product scales without friction. From schema and contract design to routing, validation, and backend development, our team delivers a backend your developers will happily build on.
- REST & GraphQL API design, contracts, and data modelling.
- Microservices and headless backend architecture.
- Authentication & authorization — OAuth 2.0, JWT, API keys, role-based access.
- Interactive documentation, versioning, and developer-friendly design.
Why choose Pixeltre for API services?
We are a custom API development company that designs the API layer from the ground up — clean contracts, sensible data modelling, and developer-friendly design. We focus on building APIs that are a joy to consume: consistent, well-documented, and easy to version as your product grows. Our team supports your backend from first endpoint through to ongoing maintenance.
- Clean, Well-Designed API Architecture
- Scalable & Versioned for Growth
- Solid Authentication & Documentation
- REST, GraphQL & Webhook Support
- Third-Party & Payment Gateway Integration
- Ongoing Support & Version Maintenance
Custom API Development Services
From contract design to microservice architecture, we build the API layer your product runs on — secure, documented, and ready to scale. Need to connect existing tools instead? See our API integration services.
API Design & Contract First
We start with a contract — OpenAPI schemas, endpoints, and data models agreed before code, so the API is consistent and predictable from day one.
REST & GraphQL Development
We build versioned REST and GraphQL APIs with proper validation, pagination, caching, and error handling so clients integrate quickly and safely.
Microservices & Headless Backends
Split your platform into focused, independently deployable services — or expose your data and logic headlessly for any frontend to consume.
Authentication & Authorization
OAuth 2.0, JWT, API keys, and role-based access control keep your endpoints protected without slowing down legitimate traffic.
API Documentation & Developer Experience
Interactive docs, versioning, and clear migration paths make your API a product your own developers and external partners actually enjoy using.
API Maintenance & Support
We monitor, tune, and extend your APIs after launch — including version upgrades and performance improvements as your traffic grows.
Need a full backend too? See our custom software services and web development.
Ready to design and build your backend API?
Contact us today for custom API development — architecture, endpoints, docs, and scaling tailored to your product.