Best REST API Development DevelopersREST API
We build REST APIs that scale to millions of requests. 200+ APIs delivered with full documentation and monitoring.
IRPR builds REST APIs using Node.js, Express, Django, Flask, and FastAPI. We design for high concurrency, low latency, and clean endpoint structures that follow OpenAPI 3.0 standards.
A typical custom REST API ships in 8-12 weeks with a fixed price between $80K and $250K. Every API includes automated testing, API versioning, and compliance with HIPAA, PCI-DSS, or SOC 2 as required.
We work with CTOs at SaaS platforms who need to scale integrations, product managers at fintech startups launching payment APIs, engineering leads at healthcare companies requiring HIPAA-compliant backends, and logistics firms building real-time tracking APIs.
Types of software we ship.
Mobile App REST API
Backend for iOS/Android apps. Built with Node.js and PostgreSQL. Handles auth, push notifications, and data sync.
Microservices REST API
Decoupled services with Docker and Kubernetes. Uses FastAPI for high throughput and Redis for caching.
Third-Party Integration API
Expose endpoints for partners and customers. OAuth2 authentication with Stripe and Salesforce connectors.
Ecommerce REST API
Product catalog, cart, checkout, and order management. Built with Django REST Framework and Stripe payments.
Real-Time Data API
WebSocket-ready REST endpoints for live dashboards. Uses Express and Socket.io with Redis pub/sub.
IoT Device REST API
Collect data from thousands of sensors. Built with FastAPI and MQTT for low-latency ingestion.
Legacy System Rest API
Wrap existing databases or SOAP services with REST endpoints. Uses Python Flask with SQLAlchemy.
Internal Tools REST API
Backend for admin panels and internal apps. Built with Django and GraphQL for flexible querying.
We build for every business type.
SaaS Platforms
Fintech Companies
Healthcare Providers
Ecommerce Brands
Logistics and Supply Chain
Why choose the best REST API development developers
We have built 200+ REST APIs across 50 countries with a 98% on-time delivery rate.
Every API starts with a detailed specification using OpenAPI 3.0. You get a clear contract before any code is written. This eliminates guesswork and ensures the final product matches your requirements exactly.
Our developers are senior engineers with at least 7 years of experience. They have shipped APIs for fintech payment gateways, healthcare patient portals, and ecommerce platforms handling over 10 million requests per month.
Generic dev shop vs. the best REST API development developers
Most agencies bill hourly and forget documentation. We do the opposite.
A common frustration we hear from clients: they hired a generic dev shop but got no API docs, no versioning, and ongoing scope creep. The API was slow and had no monitoring.
With IRPR, you get a complete package: OpenAPI spec, automated tests, CI/CD pipeline, and production monitoring from day one. Our fixed price means no surprise invoices.
- Hourly billing with no cap
- No API documentation written
- No CI/CD pipeline
- No automated tests
- No load testing
- No monitoring or alerting
- Fixed price with clear scope
- OpenAPI 3.0 spec delivered upfront
- GitHub Actions CI/CD pipeline
- Automated test coverage (95%+)
- Load testing with k6 up to 10k RPS
- Datadog monitoring and Sentry error tracking
Our process to develop the best REST API for your business
Four phases from idea to production in 8-12 weeks.
Phase 1: API Design. We map out endpoints, data models, and authentication flows. You get an OpenAPI spec you can review and share with frontend teams.
Phase 2: Development. Senior engineers write code in weekly sprints. We push to a staging environment every Friday for your feedback.
What ships when you hire the best REST API development developers
A production-ready API with everything needed to maintain and scale.
- OpenAPI 3.0 specification document
- Postman collection with example requests
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Automated unit and integration tests (95%+ coverage)
- Docker Compose configuration for local development
- Deployment scripts for AWS (EC2 or ECS) or GCP
- Datadog monitoring dashboard and sentry error tracking
- API rate limiting and authentication (JWT or OAuth2)
- Security audit report (OWASP top 10 checks)
What we ship in this practice.
Payment Gateway REST API
Built a PCI-DSS compliant payment API that processed $5M in transactions in its first quarter. Tech stack: Node.js, Express, Stripe Connect, PostgreSQL. Reduced chargeback rate by 40% through validation logic.
Patient Portal REST API
Developed a HIPAA-compliant REST API for a telehealth startup. Enabled 200+ concurrent video calls with real-time patient data sync. Tech stack: Django, FHIR, Twilio, Redis.
Ecommerce Inventory REST API
Created a real-time inventory API connecting warehouse systems and Shopify. Cut stockouts by 60% and synced 500K SKUs daily. Tech stack: FastAPI, MongoDB, Apache Kafka.
Subscription Management REST API
Designed a REST API for a SaaS billing platform handling recurring invoices for 10K+ customers. Reduced manual reconciliation from 15 hours/week to 1 hour. Tech stack: Node.js, Stripe, PostgreSQL, Bull queue.
Shipment Tracking REST API
Built a logistics API that aggregated tracking data from FedEx, UPS, and DHL. Processed 1M tracking events per day with sub-200ms response times. Tech stack: Go, Redis, PostgreSQL, GraphQL.
Analytics Dashboard REST API
Implemented a high-throughput API for a media analytics platform. Handled 50K requests/second during peak traffic. Tech stack: FastAPI, ClickHouse, Kafka, Docker on AWS ECS.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote after the Roadmap phase (week 2). No hourly billing means no surprise invoices. Our clients save an average of 30% compared to hourly agencies.
Senior engineers only
Every developer on your project has 7+ years of experience shipping REST APIs in production. No junior or offshore outsourcing. We have a 98% client satisfaction rate.
8-12 week delivery
We deliver a production-ready API in 8-12 weeks. Our process is designed for speed without cutting corners. 98% of our projects ship on time.
Full code ownership
You own all source code, documentation, and deployment scripts. We do not use proprietary frameworks or lock you into any platform. The IP is 100% yours.
Compliance built-in (HIPAA, PCI-DSS, SOC 2)
We bake compliance into every API from the start. For healthcare, we implement HIPAA audit logs and encryption. For fintech, we follow PCI-DSS guidelines and tokenize card data.
Post-launch support with SLAs
After deployment, we provide 30 days of production support. You get a 4-hour response time SLA for critical issues. We also offer ongoing maintenance at fixed monthly rates.
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.