Professional Node.js API Development CompanyAPI Development
We build production-grade APIs for startups and enterprises. 200+ products shipped on Node.js.
IRPR builds professional Node.js API development solutions using Express.js, Nest.js, and TypeScript. We design RESTful and GraphQL APIs with authentication, rate limiting, and database integration.
A typical API project ships in 12-14 weeks with fixed pricing from $80K to $250K. We build for HIPAA, PCI-DSS, and SOC 2 compliance from day one.
We work with CTOs launching SaaS products, fintech founders needing secure payment APIs, healthcare startups requiring FHIR-compliant APIs, and ecommerce brands building headless backends.
Types of software we ship.
REST API Development
Build stateless RESTful APIs with Express.js and PostgreSQL. Includes OAuth 2.0, rate limiting, and Swagger docs.
GraphQL API Development
Create flexible GraphQL APIs using Apollo Server and Prisma. Supports real-time subscriptions and efficient data fetching.
Microservices API Gateway
Develop API gateways using Kong or NGINX to route traffic, enforce auth, and aggregate data across microservices.
WebSocket API Development
Build real-time APIs with Socket.io or WebSocket for live chat, notifications, and streaming data.
Third-Party API Integration
Integrate external APIs like Stripe, Twilio, Plaid, and Salesforce into your Node.js backend with error handling and retry logic.
Internal API Development
Design internal APIs using Fastify or Koa for secure communication between services within your infrastructure.
API Security and Auth
Implement JWT, OAuth 2.0, SAML, and API key management for secure authentication and authorization in Node.js.
Serverless API Development
Deploy APIs on AWS Lambda or Vercel using Node.js, with auto-scaling and pay-per-execution pricing.
We build for every business type.
Fintech
Healthcare
SaaS
Ecommerce
Real Estate
Node.js API Development Results by the Numbers
Our APIs power products used in 50+ countries.
Every API we build is designed for scale and reliability. We load test each endpoint to handle 10x projected traffic and achieve 99.9% uptime in production.
Our clients include fintech platforms processing millions of transactions and healthcare apps serving thousands of daily users. The data speaks for itself.
Generic Dev Shop vs Professional Node.js API Agency
We don't cut corners like freelancers or generic firms.
Many teams deliver APIs without documentation, security reviews, or proper testing. That leads to broken integrations and costly rework.
IRPR ships every API with OpenAPI specs, CI/CD pipelines, load tests, and a full security audit. You get a production-ready system from day one.
- Unclear scope and endless change requests
- No API documentation
- No CI/CD or automated testing
- No security or compliance review
- No load testing before launch
- No handover or deployment guide
- Fixed price scope defined in 2-week Roadmap
- OpenAPI 3.0 spec for every endpoint
- GitHub Actions CI/CD with 90%+ test coverage
- OWASP security audit and compliance (HIPAA, PCI-DSS)
- k6 load testing to 10x projected traffic
- Full code ownership and deployment playbook
Our API Development Process in 4 Phases
From idea to deployment in 12-14 weeks.
We follow a structured process that eliminates guesswork. Each phase has clear deliverables and milestones.
You see progress weekly and have final say on every decision. No black boxes, no surprises.
What Ships When We Build Your API
Every project includes these deliverables.
You get everything needed to run and extend the API without IRPR.
- Source code in your GitHub repo
- OpenAPI 3.0 specification
- Postman collection with examples
- CI/CD pipeline on GitHub Actions
- Error logging with Sentry
- Load test report (k6)
- Docker containers and docker-compose
- Deployment playbook for AWS/GCP
- User authentication module (JWT/OAuth)
- Rate limiting middleware
What we ship in this practice.
Payment Processing API for Fintech
Built a payment gateway API handling $10M monthly volume. Reduced transaction failures by 40% using automatic retries and webhook reliability. Tech: Node.js, Express, Stripe, PostgreSQL.
Telemedicine API for Healthcare
Developed HIPAA-compliant APIs for video consultations and EHR sync. Enabled 500+ daily appointments with under 200ms latency. Tech: Node.js, Socket.io, Twilio, MongoDB.
Headless CMS API for SaaS
Created a GraphQL CMS API serving content to 200K users. Cut page load time by 60% using Redis caching and CDN integration. Tech: Node.js, Apollo, Redis, CloudFront.
Real-Time Inventory API for Ecommerce
Built inventory APIs syncing across 3 warehouses with RabbitMQ. Reduced stockouts by 90% and enabled same-day fulfillment. Tech: Node.js, RabbitMQ, PostgreSQL, Redis.
MLS Integration API for Real Estate
Integrated 500+ MLS feeds into a single REST API. Reduced data latency from 30 minutes to 2 minutes using incremental sync. Tech: Node.js, AWS Lambda, Elasticsearch.
Analytics API for Media Platform
Developed a streaming analytics API processing 10,000 events per second. Achieved 200ms p99 latency using Kafka and ClickHouse. Tech: Node.js, Kafka, ClickHouse, WebSockets.
Why teams hire us.
Fixed Price, Not Hourly
Every API project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior Engineers Only
All developers have 10+ years of experience. Your Node.js API is built by a lead engineer, not a junior or offshore team.
Compliance Built In
We build HIPAA, PCI-DSS, and SOC 2 compliant APIs from day one. No retrofitting, no last-minute audits.
OpenAPI Documentation
Every endpoint ships with an OpenAPI 3.0 spec. Your frontend team gets interactive docs instantly, reducing integration time by 50%.
Full Code Ownership
You own all source code, IP, and deployment artifacts. No lock-in, no recurring licenses, no hidden fees.
Scalability Tested
We load test every API to handle 10x your projected traffic. Past clients have scaled to 1M+ requests per day without issues.
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.