Expert Node.js API Development ConsultantsAPI Development
We build production-grade Node.js APIs for startups and enterprises. Get a working MVP in 10 weeks with a fixed price.
IRPR builds production-grade Node.js APIs for companies that need reliable, scalable backend systems. We use Express.js, Fastify, or NestJS with TypeScript, PostgreSQL, Redis, and containerized deployments on AWS or GCP.
A typical API project ships in 10-14 weeks with a fixed price between $80K and $250K. Every API includes authentication, rate limiting, logging, and error handling from day one.
We work with CTOs who need to ship a product fast, engineering leads who want to offload a complex integration, and founders who need a technical co-founder level build without the equity.
Types of software we ship.
RESTful API Development
Build clean, versioned REST APIs with proper resource modeling, pagination, filtering, and HATEOAS support using Express or NestJS.
GraphQL API Development
Design a single GraphQL endpoint that returns exactly what your frontend needs, with resolvers, batching, and dataloader for performance.
Microservices API Development
Split your backend into independent services communicating via gRPC or message queues, each with its own database and deployment pipeline.
Real-Time API Development
WebSocket and SSE based APIs for live updates, chat, notifications, and collaborative features using Socket.IO or native WebSockets.
Third-Party API Integration
Connect your application to Salesforce, HubSpot, Stripe, Twilio, or any REST/GraphQL external API with proper error handling and caching.
API Gateway Development
Build an API gateway layer for authentication, rate limiting, request transformation, and routing to multiple internal services.
Data API Development
Create CRUD and analytics APIs that query PostgreSQL, MongoDB, or ClickHouse with optimal indexing, caching, and pagination.
Payment API Development
Integrate Stripe, Braintree, or Adyen for subscription billing, one-time payments, and complex checkout flows with webhook handling.
We build for every business type.
fintech startups
healthcare providers
SaaS companies
ecommerce brands
marketplaces
Why hire expert Node.js API development consultants at IRPR
Our API projects ship faster because we start with a clear contract and a fixed price.
Every Node.js API project at IRPR has a fixed price and timeline determined in the first two weeks. No hourly billing, no scope creep.
We have shipped over 200 production APIs for clients in 50+ countries. Our engineers average 8+ years of experience.
How we compare to generic dev shops
Not all Node.js developers build APIs the same way.
Generic shops often use hourly billing with no fixed end date. You pay for learning curves and inexperienced developers.
IRPR gives you a fixed price, a written API contract, and a senior team from day one. The difference shows in the final product.
- Hourly billing with no cap
- No API contract or documentation
- No automated testing
- No CI/CD pipeline
- No monitoring or error tracking
- Code ownership unclear
- Fixed price from Day 1
- OpenAPI spec signed off before coding
- 80%+ test coverage with Jest
- GitHub Actions CI/CD
- Sentry + Datadog monitoring
- Full code ownership
Our Node.js API development process
Four phases from idea to production.
We follow a structured process that eliminates surprises. Each phase ends with a clear deliverable you approve.
From discovery to deployment, you see progress every two weeks with working code.
What ships with every Node.js API project
No hidden deliverables. Everything here is included.
Every API project includes a complete development environment, testing suite, and monitoring stack. You can deploy or modify the code immediately.
- OpenAPI 3.0 specification (Swagger)
- TypeScript source code in your GitHub repo
- Automated tests with Jest and Supertest (80%+ coverage)
- CI/CD pipeline using GitHub Actions
- Dockerized development environment
- PostgreSQL database with migrations via Prisma or Knex
- API authentication (JWT or session-based)
- Rate limiting and input validation
- Sentry error tracking and Datadog monitoring
- Deployment scripts for AWS ECS or Lambda
What we ship in this practice.
Fintech Payment Processing API
Built a REST API for a lending platform that processes 10,000 loan applications per month. The API reduced manual underwriting time by 60% using Stripe Connect and PostgreSQL. Tech: Express.js, TypeScript, Stripe, Redis.
Healthcare Patient Portal API
Developed a HIPAA-compliant GraphQL API for a telehealth startup. Enabled real-time appointment scheduling and EHR integration, cutting patient wait times by 40%. Tech: NestJS, GraphQL, PostgreSQL, AWS Fargate.
Ecommerce Catalog API for a B2B distributor
Created a RESTful API serving 500k products across 10 warehouses. Integrated with Salesforce and NetSuite, reducing inventory sync errors by 90%. Tech: Fastify, PostgreSQL, Redis, Bull queue.
SaaS Multi-Tenant Backend API
Built a multi-tenant Node.js API for a CRM startup. Each tenant gets isolated data with per-tenant rate limiting. The API handled 1M requests/day within budget. Tech: NestJS, PostgreSQL, Prisma, Datadog.
Real-Time Notification API for a social platform
Implemented WebSocket API for live notifications and chat. Supports 50k concurrent connections with 100ms latency. Reduced email notification load by 70%. Tech: Socket.IO, Redis, Node.js, AWS ECS.
Logistics API for a delivery fleet
Developed REST and WebSocket APIs for route optimization and live tracking. Integrated with Google Maps and Twilio. Decreased delivery delays by 25% and supported 500 drivers. Tech: Express.js, MongoDB, Redis, Mapbox.
Why teams hire us.
Fixed price, not hourly
Every Node.js API project has a fixed price determined in the Roadmap phase. No hourly billing, no surprise invoices - you know the cost before we write a single line of code.
Production-grade from day one
Every API ships with authentication, rate limiting, logging, and monitoring. We don't deliver prototypes - we deliver production-ready code that handles real traffic.
Full code ownership
You own every line of code we write. After launch, you get full access to your private GitHub repository with no licensing restrictions.
Senior engineers, not juniors
Every developer on your project has 8+ years of experience. We don't use junior developers or offshore teams to cut corners.
98% on-time delivery
We track every project with weekly demos and a public roadmap. 98% of our projects ship on the original timeline.
Compliance built in
If your API needs HIPAA, PCI-DSS, or SOC 2 compliance, we build it in from the start. No retrofitting compliance after the fact.
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.