Experienced Node.js API Development ServicesAPI Development
Our senior Node.js engineers build production-ready APIs in 8-12 weeks. Get fixed pricing and full code ownership.
We build Node.js APIs that talk to databases, third-party services, and front-end clients. Our stack includes Express, Fastify, Koa, PostgreSQL, MongoDB, Redis, and Apollo GraphQL.
Each project ships in 8-12 weeks with a fixed price between $80K and $250K. We handle authentication, rate limiting, error handling, and documentation. HIPAA, PCI-DSS, and SOC 2 compliance available.
CTOs at Series A startups hire us to ship their platform backend. Product managers need custom integrations. Enterprises require API gateways for internal services. We serve all these buyers.
Types of software we ship.
RESTful API Development
Build stateless REST APIs with JSON responses using Express or Fastify. Includes Swagger docs, JWT auth, and PostgreSQL connection.
GraphQL API Development
Schema-first GraphQL APIs with Apollo Server. Resolvers connect to MongoDB or SQL databases. Supports subscriptions for real-time data.
Microservices API Development
Distributed APIs using Node.js microservices with message queues like RabbitMQ or NATS. Dockerized and orchestrated on Kubernetes.
Real-time API (WebSocket)
WebSocket APIs for chat, live notifications, and streaming data. Uses Socket.IO or ws library with Redis pub/sub for scaling.
Third-party API Integration
Integrate Stripe, Twilio, Salesforce, HubSpot, Slack APIs. Handle OAuth, webhooks, rate limits, and data sync.
API Gateway Development
Build an API gateway layer using Express Gateway or custom middleware. Route requests, enforce auth, throttle, and aggregate responses.
Backend API for Mobile App
APIs optimized for mobile with pagination, offline sync, push notifications via FCM or APNs. Uses JWT and refresh tokens.
Data API (Analytics/Reports)
Expose aggregated data via API for dashboards. Uses PostgreSQL views, caching with Redis, and paginated endpoints.
We build for every business type.
SaaS & Tech Platforms
Healthcare & Life Sciences
Fintech & Financial Services
E-commerce & Retail
Enterprise & Logistics
Our Node.js API Projects by the Numbers
Every API ships with measurable results.
We have delivered over 200 APIs across 50 countries. Our average project timeline is 10 weeks from Roadmap to Release. 98% of projects finish on time and on budget.
APIs built by IRPR handle 99.9% uptime with proper error handling and monitoring. Clients report 40% faster integration times because of clear documentation.
Why IRPR For Node.js APIs
Not all Node.js development shops are the same.
Many agencies start coding without a clear architecture, leading to spaghetti code and technical debt. They charge by the hour and may change scope mid-project.
IRPR follows a fixed-price model based on a detailed Roadmap. We write tests for every endpoint and provide full documentation. You own the code from day one.
- Hourly billing with no cap
- No formal architecture review
- Sparse or missing API documentation
- No automated tests
- Unclear data flow and error handling
- Code ownership uncertain
- Fixed price from Roadmap phase
- Detailed architecture and ERD review
- OpenAPI/Swagger docs auto-generated
- Unit + integration tests with Jest
- Structured error handling and logging
- Full source code ownership
Our API Development Process
Four phases from idea to deployed API.
We start with a Discovery call to understand your requirements and data sources. Then we produce a Roadmap document with wireframes, API design, and cost estimate.
After approval, we build the API in sprints with daily commits and a staging environment. Finally, we deploy to production with CI/CD and monitoring.
What Ships With Every Node.js API
Every project includes these deliverables by default.
No hidden extras. Everything listed here is part of the fixed price.
- Source code in your GitHub repository
- OpenAPI/Swagger documentation
- CI/CD pipeline with GitHub Actions
- Postman collection for testing
- Dockerfile and docker-compose
- Sentry error tracking integration
- Load testing script with k6
- Database migration scripts
- Deployment guide
- 60-day post-launch support
What we ship in this practice.
Payment Processing API for a Fintech Startup
Built a RESTful API to process credit card payments with Stripe. Handled 10,000 transactions per minute during peak. Tech stack: Node.js, Express, Stripe API, PostgreSQL, Redis. Reduced payment latency by 30%.
EHR Integration API for a Telehealth Platform
Developed a FHIR-compliant API to connect with Epic and Cerner systems. Enabled real-time patient data sync for 50 clinics. Tech stack: Node.js, HAPI FHIR, PostgreSQL, RabbitMQ. Saved 20 hours per week per clinic in manual data entry.
Real-time Inventory API for an E-commerce Brand
Built a WebSocket API that pushes inventory updates to 500 storefronts instantly. Integrated with Shopify and custom warehouse systems. Tech stack: Node.js, Socket.IO, Redis, MongoDB. Reduced overselling incidents to near zero.
Analytics Data API for a SaaS Dashboard
Created a GraphQL API that aggregates data from 5 internal services into a unified dashboard. Supports complex filtering and caching. Tech stack: Apollo Server, PostgreSQL, Redis, AWS Lambda. Cut page load time from 4s to 0.5s.
Property Listing API for a Real Estate Platform
Developed an API that ingests MLS listings and offers search with geolocation and filtering. Handles 1 million listings with sub-second queries. Tech stack: Node.js, Elasticsearch, PostgreSQL, Express. Increased search speed by 5x.
Course Enrollment API for an EdTech Platform
Built a RESTful API for student registration, payment, and progress tracking. Integrated with Canvas LMS via LTI. Tech stack: Node.js, Express, MongoDB, Stripe. Scaled to 10,000 concurrent users during enrollment periods.
Why teams hire us.
Fixed Price, Not Hourly
Every project gets a fixed quote after the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior Developers Only
Our team averages 10+ years of experience. Every engineer has shipped production Node.js APIs for at least 5 years.
Full Code Ownership
You own all source code, documentation, and infrastructure scripts from day one. We never license or restrict your IP.
HIPAA and PCI-DSS Ready
We build APIs that comply with healthcare and payment security standards. Our team has completed 30+ HIPAA audits and 20+ PCI-DSS validations.
8-12 Week Delivery
Most APIs are production-ready in 10 weeks average. We start with a minimal set of endpoints and iterate based on your feedback.
Built-in Monitoring and Support
Every API ships with Sentry error tracking, Datadog performance monitoring, and a deployment guide. We provide 60 days of post-launch support.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.