API Development Services
RESTful and GraphQL APIs designed for performance, scalability, and reliability
APIs are the backbone of modern digital products. We design and build production-grade APIs that connect frontend applications, mobile apps, internal systems, partners, and third-party services. Our APIs are engineered to support high load, long-term maintainability, and secure data exchange — not just quick integrations. This service is ideal for companies that need stable APIs as part of a larger backend architecture: microservices, event-driven systems, or enterprise platforms.
What We Build
REST API Development
- Clean, well-versioned REST APIs
- Consistent resource modeling and naming
- Pagination, filtering, sorting, and search
- Backward-compatible API evolution
GraphQL API Development
- Flexible schemas for complex frontends
- Optimized queries to reduce over-fetching
- Schema design aligned with product domain
- Secure resolvers and access control
Internal & External APIs
- APIs for frontend and mobile applications
- Partner and third-party integrations
- Public APIs with documentation and rate limits
- Internal service-to-service APIs
API Architecture Optimized for Performance
- Low-latency request handling
- Asynchronous processing where required
- Caching strategies (Redis, HTTP caching)
- Load-aware API design
Security & Access Control
- OAuth2, JWT, API keys
- Role-based access control (RBAC)
- Rate limiting and abuse protection
- Secure error handling and logging
Typical Problems We Solve
Our Approach
Typical Outcomes of Well-Designed APIs
Technology Stack
Why H-Studio
Results we're
proud to show
FAQ
Yes — we design and implement both REST and GraphQL APIs based on your requirements. REST is ideal for predictable resource-based operations, while GraphQL excels when frontends need flexible data fetching.
We design APIs with scalability in mind: proper caching strategies, asynchronous processing where needed, load-aware architecture, and performance testing. Our APIs are designed to handle increasing traffic without architectural bottlenecks.
We implement clear versioning strategies (URL-based or header-based) to ensure backward compatibility as your API evolves. This prevents breaking changes for existing clients.
Yes — we provide comprehensive API documentation using OpenAPI/Swagger for REST APIs and GraphQL schemas for GraphQL APIs. This includes clear examples, authentication flows, and error handling.
Yes — we design APIs that integrate seamlessly with existing backend systems, whether they're microservices, monoliths, or legacy systems. We ensure clean contracts and secure data exchange.
API development for companies operating production systems. We support organizations with REST and GraphQL API design, backend systems, and microservices architecture based on the specific technical and regulatory context of each project. All services are delivered individually and depend on system requirements and constraints.
API performance, scalability, and reliability depend on architecture, usage patterns, infrastructure, and operational practices. No specific performance guarantees are provided.