Best Node.js API Development ServicesAPI Development
We build production-ready Node.js APIs in 12 weeks. Fixed price, senior engineers, full code ownership.
IRPR builds the best Node.js API development services for startups and enterprises. We use Express.js, Fastify, NestJS, and TypeScript to create REST, GraphQL, and gRPC APIs that handle millions of requests per month.
Each project ships with a complete API, CI/CD pipeline, automated tests, and Postman collections. Timeline is 12 to 14 weeks for a production API. Pricing starts at $80K and goes to $250K for complex microservices. We follow HIPAA, PCI-DSS, and SOC 2 compliance standards.
Founders who need a scalable backend for their SaaS MVP hire us. CTOs who want to replace a slow legacy API hire us. Product managers who need a secure fintech or healthcare API hire us. We work with clients in New York, San Francisco, London, and 47 other countries.
Types of software we ship.
REST API Development
Build RESTful APIs with Express.js, JWT authentication, and Swagger documentation. Handles 10,000+ requests per second.
GraphQL API Development
Create flexible GraphQL APIs with Apollo Server, type definitions, and resolver patterns. Reduces over-fetching by 60%.
Microservices API Development
Design microservices with Node.js, Docker, Kubernetes, and message queues like RabbitMQ. Scales independently per service.
Real-Time API Development
Build real-time APIs using Socket.io, WebSockets, and Redis pub/sub. Supports 50,000 concurrent connections.
Third-Party API Integration
Integrate with Stripe, Twilio, SendGrid, Salesforce, and 200+ other APIs. Average integration takes 2 weeks.
API Gateway Development
Deploy API gateways with Kong or NGINX for rate limiting, authentication, and routing. Handles 100,000 requests per minute.
Serverless API Development
Build serverless APIs on AWS Lambda or Vercel with Node.js. Cold starts under 200ms. Pay only for execution time.
API Security and Compliance
Add OAuth 2.0, API keys, rate limiting, and encryption. Meets PCI-DSS and HIPAA requirements for financial and healthcare APIs.
We build for every business type.
SaaS and Platforms
Fintech and Payments
Healthcare and Life Sciences
Ecommerce and Retail
Logistics and Operations
Why Our Node.js API Development Services Deliver Results
We have shipped 200+ APIs for clients in 50 countries. Every API is built with a specific set of practices that ensure speed, security, and scalability.
Our APIs handle an average of 10 million requests per month with 99.9% uptime. We use Node.js 20 LTS, TypeScript, and automated testing with Jest and Supertest. Each API includes a CI/CD pipeline on GitHub Actions that runs 200+ tests before deployment.
We follow the 12-factor app methodology for cloud-native APIs. Every API is containerized with Docker and deployed to AWS ECS, Google Cloud Run, or Azure App Service. We provide Postman collections, Swagger docs, and a monitoring dashboard with Sentry and Datadog.
How We Build Better Node.js APIs Than Generic Dev Shops
Most agencies sell you hourly billing and vague timelines. We sell fixed-price projects with clear deliverables and a 12-week deadline.
Generic shops often use outdated Express.js patterns, skip automated testing, and hand you code with no documentation. They charge by the hour, so scope creep means your budget explodes. You get an API that works today but breaks under load tomorrow.
IRPR builds every API with TypeScript, automated tests, rate limiting, and full Swagger documentation. We give you a fixed price in the Roadmap phase (week 2). No hourly billing. No surprise invoices. Your API ships with a production-ready CI/CD pipeline and a monitoring dashboard.
- Hourly billing that encourages slow work
- No automated tests
- No CI/CD pipeline
- No documentation
- Vague timeline that slips 3-6 months
- You don't own the code
- Fixed price from the Roadmap phase
- 200+ automated tests per API
- CI/CD pipeline on GitHub Actions
- Swagger docs and Postman collections
- 12-week timeline, 98% on-time
- Full code ownership from day one
Our 4-Phase Process for Node.js API Development
We follow a repeatable process that turns your idea into a production API in 12 weeks. No fluff, no delays.
Phase 1 is the Idea phase, where we map your requirements, user flows, and data models. Phase 2 is the Roadmap phase, where we produce a detailed technical specification, architecture diagram, and fixed price quote. Phase 3 is the Product phase, where we build the API in 2-week sprints with daily standups and weekly demos. Phase 4 is the Release phase, where we deploy to production, run load tests, and hand over full documentation.
Every phase includes a sign-off gate. You approve the roadmap before we write code. You see working endpoints every 2 weeks. You get the final API with source code, tests, and deployment scripts.
What Ships with Every Node.js API Project
You don't just get an API. You get everything needed to run, monitor, and scale it.
Every project includes a production-ready codebase, automated tests, CI/CD pipeline, and monitoring setup. We also provide full documentation so your team can take over immediately.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions with 200+ tests
- Swagger/OpenAPI documentation
- Postman collection with all endpoints
- Dockerfile and docker-compose for local development
- Rate limiting and API key authentication
- Sentry error tracking and Datadog monitoring
- Load test results with k6 (target: 10,000 req/s)
- Deployment scripts for AWS, GCP, or Azure
- One-year warranty on all code
What we ship in this practice.
SaaS Backend API for Subscription Platform
Built a multi-tenant Node.js API with Express.js, PostgreSQL, and Stripe integration. Handles 5 million requests per month. Reduced user onboarding time from 3 days to 15 minutes. Tech stack: Node.js, Express.js, PostgreSQL, Redis, Stripe.
Payment Processing API for Fintech Startup
Developed a PCI-DSS compliant API for processing 50,000 transactions per day. Integrated with Plaid, Stripe, and bank APIs. Achieved 99.99% uptime over 12 months. Tech stack: Node.js, Fastify, PostgreSQL, Redis, Stripe, Plaid.
HIPAA-Compliant API for Telehealth Platform
Created a secure API for patient scheduling, video consultations, and EHR integration. Passed HIPAA audit on first attempt. Reduced patient no-show rate by 40%. Tech stack: Node.js, NestJS, PostgreSQL, Twilio, AWS HealthLake.
Real-Time Tracking API for Logistics Company
Built a WebSocket-based API for tracking 10,000 delivery vehicles in real time. Integrated with GPS devices and Google Maps. Reduced delivery delays by 25%. Tech stack: Node.js, Socket.io, Redis, MongoDB, Google Maps API.
Product Catalog API for Ecommerce Brand
Developed a GraphQL API for a catalog of 500,000 products with real-time inventory sync. Connected to Shopify and warehouse management system. Increased search speed by 300%. Tech stack: Node.js, Apollo Server, PostgreSQL, Elasticsearch, Shopify API.
Analytics API for Media Platform
Created a REST API for ingesting and querying 100 million events per day. Built with Node.js, Kafka, and ClickHouse. Reduced query time from 30 seconds to 200 milliseconds. Tech stack: Node.js, Express.js, Kafka, ClickHouse, Redis.
Why teams hire us.
Fixed Price, Not Hourly
Every Node.js API project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the exact cost before we write a single line of code.
Senior Engineers Only
Our team averages 10+ years of Node.js experience. Every engineer has shipped at least 5 production APIs. We do not outsource or use junior developers. You work directly with the person building your API.
12-Week Delivery Guarantee
We ship production-ready APIs in 12 weeks. 98% of our projects deliver on time. If we miss the deadline, we work extra hours at no cost. Your API ships when we say it will.
Full Code Ownership
You own 100% of the source code, tests, documentation, and deployment scripts from day one. No licensing fees, no vendor lock-in. You can take the code to any team or platform.
Built for Compliance
We build HIPAA-compliant APIs for healthcare, PCI-DSS compliant APIs for fintech, and SOC 2 compliant APIs for SaaS. Our APIs pass audits on the first attempt. We handle encryption, access controls, and audit logs.
Production-Ready from Day One
Every API ships with automated tests (200+), CI/CD pipeline, monitoring, and load test results. We deploy to AWS, GCP, or Azure. Your API is ready for millions of requests from the moment we hand it over.
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.