API Development
APIs are the backbone of modern software — connecting your frontend to backends, mobile apps to servers, and services to each other. I design, build, and document APIs that are fast, secure, well-documented, and a pleasure for developers to integrate with. REST, GraphQL, gRPC, or WebSocket — whatever your architecture needs.
200+
APIs Built & Integrated
Technologies I use
What You Get
REST API Design & Development
RESTful APIs following best practices — proper HTTP methods, status codes, resource naming, pagination, filtering, and HATEOAS links. OpenAPI 3.0 specifications for machine-readable documentation.
GraphQL API
GraphQL APIs with Apollo Server or Yoga — type-safe schemas, resolvers, dataloaders for N+1 prevention, subscriptions for real-time data, and code-generated TypeScript types from your schema.
Real-Time APIs
WebSocket APIs for bidirectional real-time communication, and Server-Sent Events (SSE) for one-way streaming. Chat, notifications, live dashboards, and collaborative features.
Authentication & Security
JWT tokens, OAuth 2.0 flows, API keys, HMAC signatures, and mTLS for API authentication. Rate limiting, request throttling, IP whitelisting, and CORS configuration.
API Documentation
Auto-generated documentation with OpenAPI/Swagger, interactive API explorers, code samples in multiple languages, and developer onboarding guides. APIs that developers actually want to use.
API Gateway & Management
Kong, AWS API Gateway, or custom gateway solutions for routing, rate limiting, caching, transformation, and monitoring across multiple backend services.
How I Work
API Design & Specification
Design the API contract using OpenAPI/GraphQL SDL before writing any code. Define endpoints, request/response shapes, authentication, and error formats.
Implementation
Build API endpoints with proper validation, error handling, and business logic. Implement authentication, authorization, and data access layers.
Documentation & Testing
Generate interactive documentation, write integration tests, and create Postman collections. Load test to verify performance under expected traffic.
Security & Performance
Security audit, rate limiting, caching strategy, query optimization, and monitoring setup. Ensure the API handles edge cases gracefully.
Deployment & Versioning
Deploy with versioning strategy (URL or header-based). API gateway setup, monitoring, and alerting. SDK generation for client teams.
Pricing
Every project is unique. These are starting points — final pricing depends on scope, timeline, and complexity.
API Development
From $3,000
REST or GraphQL API with authentication and documentation.
- API design & specification
- Endpoint implementation
- Authentication (JWT/OAuth)
- Input validation
- OpenAPI documentation
- Postman collection
Advanced API Platform
From $8,000
Full API platform with real-time, webhooks, and gateway.
- REST + GraphQL
- WebSocket / SSE
- Webhook system
- Rate limiting & caching
- API gateway setup
- Comprehensive testing
API Integration Service
From $2,000
Integrate third-party APIs into your existing application.
- Third-party API integration
- Data mapping & transformation
- Error handling & retries
- Webhook listeners
- Testing & monitoring
- Documentation
Related Services
Other technologies and services that work well with API Development.
Ready to Start?
Let's discuss your project requirements and find the best approach for your business.
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