Custom REST APIs built with Node.js and Express.js. Clean architecture, full documentation, tested for production. Every API I build includes proper authentication, rate limiting, error handling, and comprehensive documentation so your team can integrate without constant back-and-forth.
Whether you need a simple CRUD API for your mobile app or a complex system with real-time features, file uploads, pagination, filtering, and third-party integrations, I build it to production standards with monitoring and documentation included.
What Every REST API Includes
API architecture and design
Resource-oriented endpoints following REST best practices. Consistent response formats, proper HTTP methods and status codes, pagination, filtering, sorting, and versioning strategy from day one. Your API is predictable and easy to integrate.
Authentication and security
JWT, API keys, or OAuth 2.0 implementation. Rate limiting per user or per endpoint, input validation, CORS configuration, request logging, and security headers. Your API is protected against common attacks and abuse.
Documentation and testing
OpenAPI/Swagger documentation that your frontend team can use immediately. Postman collections for manual testing. Automated test suites covering endpoints, authentication, and edge cases. Load testing results showing performance under expected traffic.
Deployment and monitoring
Containerized deployment with Docker, CI/CD pipeline configuration, health check endpoints, structured logging, and error tracking integration. Your API is observable from day one – you know when something breaks before your users do.
Frequently Asked Questions
How much does API development cost?
A typical REST API with 10-20 endpoints, authentication, and database integration costs $2,000 to $6,000. Complex APIs with real-time features, file processing, or multiple third-party integrations range from $4,000 to $8,000. Fixed price, scoped upfront.
How long does it take?
Standard APIs take 2-4 weeks depending on endpoint count and complexity. Complex systems with real-time features and integrations typically take 4-8 weeks. Timeline is established during the discovery call and included in your scope document.
Related: Node.js development services – Backend for SaaS – API services
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