Expert REST API Development StudioDevelopment Studio
We build REST APIs that ship in 12 weeks with fixed pricing. No scope creep, no surprises.
IRPR builds production-grade REST APIs using Node.js, Go, Python, and Java with Express, Gin, FastAPI, or Spring Boot. Every API ships with automated tests (Jest, pytest), CI/CD pipelines (GitHub Actions), and OpenAPI 3.0 documentation.
Typical delivery is 12-14 weeks from kickoff. Fixed pricing starts at $80K and goes to $250K depending on endpoints, integrations, and compliance needs. We support HIPAA, PCI-DSS, SOC 2, and FERPA from day one.
We work with CTOs who need a scalable API layer for their SaaS product, founders building an API-first MVP, enterprise teams migrating from monolithic systems, and product managers adding third-party integrations.
Types of software we ship.
REST API for SaaS platforms
Multi-tenant REST APIs with rate limiting, OAuth 2.0, and Stripe billing integration. Built on Node.js or Python.
REST API for mobile apps
Lightweight JSON APIs optimized for mobile bandwidth. Use Firebase Cloud Messaging for push notifications and offline sync.
REST API for microservices
Decoupled REST APIs with message queues (RabbitMQ, Kafka) and containerized deployment on Kubernetes.
REST API for data integration
ETL pipelines and REST endpoints that sync data between Salesforce, HubSpot, and your internal databases via PostgreSQL or MongoDB.
REST API for ecommerce
Product catalog, cart, checkout, and inventory APIs with Shopify or WooCommerce integration. PCI-compliant payment handling.
REST API for healthcare (FHIR)
HL7 FHIR-compliant REST APIs for EHR/EMR integration. HIPAA-secured with audit logs and BAA in place.
REST API for fintech (PCI-DSS)
Tokenized payment APIs, KYC verification endpoints, and ledger services. Built with Plaid and Stripe Connect.
REST API for real-time streaming
REST endpoints combined with WebSockets and SSE for live dashboards and notifications. Powered by Redis Pub/Sub.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS
Media & Entertainment
Why choose an expert REST API development studio
Over 200 products shipped across 50 countries. Here is what we deliver.
IRPR has shipped 200+ API projects for startups and enterprises since 2016. We work with Node.js, Go, Python, and Java to build REST APIs that handle millions of requests per minute with 99.9% uptime.
Every project includes automated load testing (k6), error tracking (Sentry), and monitoring (Datadog). Our clients get a fully documented API with Postman collections and OpenAPI specs before launch.
The difference between a generic dev shop and IRPR
Most agencies treat REST API design as an afterthought. We treat it as the core product.
Generic dev shops reuse boilerplate code and skip API versioning, documentation, and security reviews. They often use hourly billing and extend timelines when requirements change.
IRPR delivers every API with 100% unit test coverage, automated deployment scripts, and a fixed price agreed in week 2. No hourly billing. No surprise overruns.
- Uses hourly billing with no cost cap
- Avoids API versioning (v1, v2)
- Ships without OpenAPI docs
- Has zero security compliance (no HIPAA/PCI)
- No automated load testing
- Code ownership is unclear
- Fixed price quoted in week 2 of Roadmap phase
- Every API uses semantic versioning (v1, v2) from start
- OpenAPI 3.0 spec delivered alongside the code
- HIPAA, PCI-DSS, SOC 2 compliance built in
- k6 load tests run against every staging build
- Full source code ownership, delivered in your Git repo
Our REST API development process
From concept to production in 4 phases — each with a fixed cost and clear deliverables.
We start with a 2-week Roadmap phase where we define endpoints, data models, and compliance requirements. After that, each sprint is 2 weeks with a demo at the end.
You see working APIs from week 6. Staging environment with CI/CD is live by week 4. Full production release happens between week 12 and 14.
What ships with every REST API
Every IRPR project includes these deliverables — no add-ons, no extras.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions (tests, build, deploy)
- OpenAPI 3.0 specification (YAML/JSON)
- Postman collection with example requests and responses
- Dockerized development and production environments
- Sentry error tracking and Datadog monitoring integration
- Load test scripts using k6 (scalable to 10,000 req/s)
- API authentication (JWT, OAuth2, or API keys)
- Rate limiting and IP whitelisting
- Security audit report (OWASP top 10 vulnerabilities checked)
What we ship in this practice.
Payment processing API for a fintech startup
Built a REST API using Node.js and Stripe Connect that handles 500+ transactions per minute. Reduced PCI scope by tokenizing payments. Achieved 99.99% uptime in production.
Patient data exchange API for a telehealth platform
Implemented a FHIR-compliant REST API with Python and FastAPI. Integrated with Epic and Cerner EHR systems. Eliminated manual chart imports, saving 12 hours/week per physician.
Inventory and order API for an ecommerce marketplace
Created REST endpoints with NestJS and PostgreSQL that sync inventory across 200+ suppliers. Connected to Shopify and WooCommerce in 2 weeks. Cut order reconciliation time by 80%.
Analytics ingestion API for a B2B SaaS platform
Designed a high-throughput REST API with Go and Kafka that ingests 10 million events per day. Provided real-time dashboards via WebSocket. Reduced latency from 5 seconds to 200ms.
Property listing API for a real estate aggregator
Built REST endpoints with Ruby on Rails and Elasticsearch that power a search portal with 1.5 million listings. Integrated MLS feeds from 12 local boards. Search response time under 100ms.
Content delivery API for a media streaming app
Developed a REST API with Node.js and DynamoDB that serves 2 million users with personalized playlists. Used AWS CloudFront for edge caching. Reduced CDN costs by 40%.
Why teams hire us.
Fixed price, not hourly
Every REST API project gets a fixed quote during the 2-week Roadmap phase. No hourly billing. No surprise invoices. You know the cost before we write a single line of code.
Senior engineers only
We do not hire juniors. Every engineer on your project has 8+ years of experience building REST APIs at scale. You get a dedicated team lead who stays through the entire project.
Compliance built in, not bolted on
HIPAA, PCI-DSS, SOC 2, and FERPA are part of our standard workflow. We conduct a compliance audit in week 1 and implement controls before deployment.
API-first design from day one
We design your API schema, authentication, and data models before writing any frontend. This approach reduces rework by 60% and makes integrations simple for your partners.
Rigorous automated testing
Every endpoint gets unit tests (Jest, pytest), integration tests, and load tests (k6). Our CI pipelines run 300+ tests per commit. We do not ship untested code.
Full ownership and no lock-in
You own all source code, documentation, and infrastructure configurations. We deliver the code in your repository with a clean commit history. No proprietary frameworks, no vendor lock.
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.