Node.js API Development CompanyAPI Development
We build production-ready Node.js APIs in 8-12 weeks. Your data moves faster, your team ships sooner.
IRPR builds Node.js APIs for data-heavy applications. We use Express.js, Fastify, and NestJS for REST and GraphQL endpoints, with Prisma or TypeORM for database access. Every API ships with Swagger docs and automated test coverage.
A custom Node.js API takes 10-14 weeks to deliver, depending on endpoint count and integration complexity. Pricing starts at $80K and goes to $200K for high-throughput or multi-service architectures. We support HIPAA, PCI-DSS, and SOC 2 compliance out of the box.
Our clients include SaaS CTOs who need a scalable backend for their new product, fintech founders integrating payment gateways like Stripe and Plaid, healthcare companies building FHIR-compliant APIs, and ecommerce brands connecting Shopify with their ERP.
Types of software we ship.
REST API
Stateless endpoints for CRUD operations. Standard for web and mobile apps. Uses Express.js with JWT auth.
GraphQL API
Single endpoint with flexible queries. Ideal for complex data relationships. Built with Apollo Server and Nexus.
Microservices API
Decoupled services communicating via gRPC or message queues. Containerized with Docker and Kubernetes.
Streaming API
Real-time data pipelines using WebSockets or Server-Sent Events. Uses Socket.IO or Kafka for event streaming.
Webhook System
Event-driven callbacks for third-party integrations. Handles retries and idempotency with Redis and Bull.
Payment API
Secure endpoints for processing payments via Stripe, Square, or Braintree. PCI-DSS compliant by design.
Authentication API
User login, MFA, and session management using Passport.js or Auth0. Supports OAuth2 and SAML protocols.
Data Sync API
Bidirectional sync between SaaS platforms like Salesforce, HubSpot, or Shopify. Uses offset-based or cursor pagination.
We build for every business type.
SaaS Platforms
Fintech
Healthcare
Ecommerce
Media & Publishing
Why you need a dedicated Node.js API development company
Building a production API in-house takes months of trial and error with infrastructure, scaling, and security.
Many teams start with a simple Express server but hit problems at 10,000 concurrent users. They need rate limiting, caching with Redis, connection pooling, and proper error handling. IRPR has built over 40 Node.js APIs for startups and enterprises that handle millions of requests per day.
We ship each API with automated load testing (k6 or Artillery), Swagger documentation, and monitoring via Sentry and Datadog. Our fixed price model includes all of this upfront no surprises at the end.
Generic dev shop vs Node.js API specialists
Most agencies build a quick prototype and hand it over with no tests, no docs, and no scaling plan.
A generic team might use a single web server for everything. They skip database indexing, miss async error handling, and leave your API vulnerable to injection attacks. IRPR treats every endpoint as a production asset from day one.
We design for horizontal scaling from the start. Your API works on a single EC2 instance and scales across 20 nodes without code changes. We ship CI/CD pipelines, staging environments, and rollback strategies.
- No automated API tests
- No rate limiting or throttling
- No pagination strategy
- No error tracking (Sentry)
- Code not reviewed for OWASP Top 10
- No documentation beyond comments
- 100% test coverage on critical endpoints
- Rate limiting with Redis and token bucket algorithm
- Cursor-based pagination for large datasets
- Sentry error tracking from day one
- OWASP top 10 review in Roadmap phase (week 2)
- Swagger/OpenAPI docs auto-generated
How we build your Node.js API in 12 weeks
Our process moves from idea to production in 5 phases, each with clear deliverables.
We start with a 2-week Roadmap phase where we spec every endpoint, data model, and security requirement. You approve the plan before any code is written.
Build happens in 2-week sprints. You see working endpoints every cycle. We deploy to a staging environment after sprint 2 so you can test with your team.
What ships with every Node.js API
Every API project includes more than just endpoints. You get a complete production system.
We dont just hand over code. You get infrastructure-as-code, monitoring dashboards, and deployment scripts. Your team can modify and deploy independently after day one.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions or GitLab CI
- Docker Compose for local development
- Sentry error tracking with alerts
- Datadog or New Relic monitoring dashboard
- Swagger/OpenAPI documentation (auto-generated)
- Staging and production environments
- Database migration scripts (TypeORM or Prisma)
- Load test scripts (k6 or Artillery)
- Postman collection for manual testing
What we ship in this practice.
Real-time order sync for an ecommerce platform
Built a Node.js API that syncs Shopify orders to a custom ERP in under 3 seconds. Used webhooks to trigger inventory updates. Reduced manual data entry by 15 hours per week. Tech stack: NestJS, Redis, PostgreSQL, Shopify Admin API.
HIPAA-compliant patient data API for a telemedicine startup
Developed a FHIR-compliant API that handles PHI, audit logs, and consent management. Passed HIPAA security assessment on first attempt. Serves 10,000+ daily patient queries. Tech stack: Fastify, PostgreSQL, Bcrypt, AWS KMS.
Payment processing API for a fintech lending platform
Built a PCI-DSS Level 1 compliant API that handles loan disbursements and repayments via Stripe Connect. Processes $2M in transactions monthly with 99.99% uptime. Tech stack: Express.js, Stripe API, MongoDB, Redis.
Microservice API for a SaaS CRM with 50,000 users
Architected 12 microservices using gRPC for internal communication and REST for client-facing endpoints. Reduced API response time from 800ms to 90ms. Tech stack: gRPC, Node.js, RabbitMQ, Docker, Kubernetes.
Content delivery API for a media streaming platform
Created a GraphQL API that serves personalized video playlists to 100,000 concurrent viewers. Uses CDN caching and adaptive bitrate streaming. Cut buffering complaints by 40%. Tech stack: Apollo Server, DynamoDB, CloudFront, AWS Lambda.
Property listing API for a real estate marketplace
Built a REST API that aggregates MLS listings from 50+ sources and serves them in a unified format. Handles 5 million listings with sub-second search latency. Tech stack: Express.js, Elasticsearch, PostgreSQL, 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.
Senior engineers only
We assign engineers with 8+ years of Node.js production experience. No offshore juniors. Your API is built by someone who has scaled systems to 1 million requests per day.
Own your code from day one
Source code, CI/CD pipelines, and infrastructure config are in your repo from the first commit. You can walk away at any time with a working product.
HIPAA, PCI-DSS, SOC 2 built in
We handle compliance from the architecture phase. Your API includes encryption at rest and in transit, audit logs, access controls, and vulnerability scanning.
200+ shipped products, 50+ countries
Our team has delivered production systems across healthcare, fintech, ecommerce, and SaaS. Every API is built for real-world traffic, not demo day.
8-12 week delivery guarantee
We design, build, and release your Node.js API in under 3 months. Our sprint process ensures you see a working endpoint every 2 weeks.
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.