Experienced REST API Development CompanyREST API
We build scalable, secure REST APIs for your product. Get a production-ready backend in 8-12 weeks with fixed pricing.
IRPR builds production REST APIs using Node.js, Python (FastAPI, Django REST), Java (Spring Boot), and Go. We design endpoints with OpenAPI 3.0 specs before writing a single line of code.
Each API ships with documentation, Postman collections, unit tests, and a CI/CD pipeline in 8-12 weeks. Pricing is fixed after a 2-week roadmap and ranges from $80K to $250K. We comply with HIPAA, PCI-DSS, and SOC 2.
We work with SaaS founders who need a backend for their MVP, enterprise architects replacing legacy SOAP systems, mobile app teams requiring a scalable data layer, and IoT companies managing device telemetry.
Types of software we ship.
Public REST API
A developer-facing API for third-party integrations, built with rate limiting, versioning, and developer portal. Uses Django REST or Express.
Private Internal API
An internal microservice API for connecting frontend and backend components within your organization. Often built with FastAPI or Spring Boot.
Microservices Gateway API
A single entry point that routes requests to multiple microservices, handles authentication, and aggregates responses. Uses Kong or NGINX.
Partner API (B2B)
A restricted API for business partners with OAuth 2.0, usage quotas, and audit logging. Commonly used by SaaS platforms for channel integrations.
Mobile Backend API
Optimized for mobile clients with JSON payloads, push notifications (Firebase), and offline sync support. Built on Node.js with MongoDB.
Real-time API (WebSocket hybrid)
Combines REST endpoints with WebSocket channels for live updates. Used for chat, dashboards, and live tracking. Powered by Socket.io or GraphQL subscriptions.
Third-party Integration API
Wraps external APIs (Salesforce, Stripe, Plaid) into a unified interface for your application. Handles authentication, retries, and rate limits.
Admin Dashboard API
Backend API for internal admin panels with role-based access, audit logs, and bulk operations. Typically paired with React admin dashboards.
We build for every business type.
SaaS and platform companies
Ecommerce and retail
Healthcare and life sciences
Fintech and banking
Mobile and web apps
Why choose IRPR for REST API development
We have shipped 200+ products and maintain 99.9% uptime across all APIs we manage.
IRPR assigns a team of senior engineers with 10+ years of backend experience to every project. Each API goes through a strict peer review process and is tested against OWASP Top 10 vulnerabilities.
Our fixed pricing model means you know the total cost after a 2-week roadmap. No hourly billing, no surprise invoices, and no scope creep charges.
The difference between generic dev shops and IRPR
Most API projects fail due to unclear specs, hidden costs, and unmaintainable code. IRPR fixes that.
A typical dev shop sends junior developers, skips documentation, and delivers a monolith without monitoring. You end up with technical debt and no way to scale.
IRPR treats your API as a product. We write OpenAPI specs first, set up monitoring from day one, and give you full code ownership. You get a production-ready API that other developers love to use.
- Vague requirements and no written contract
- Hourly billing with unlimited scope changes
- No API documentation or Postman collections
- No versioning strategy - breaking changes without notice
- No monitoring or alerting in production
- Code is unmaintainable with no tests
- OpenAPI-defined endpoints reviewed by senior engineers
- Fixed price after a 2-week roadmap phase
- Complete Postman collection and ReadMe documentation shipped
- Semantic versioning (v1, v2) with deprecation notices
- Sentry error tracking + Datadog monitoring preconfigured
- Full source code ownership and thorough unit/integration tests
How we build your REST API in 8-12 weeks
Our process is transparent and predictable. You see progress every week.
We start with a 2-week discovery and roadmap phase where we define all endpoints, data models, and integrations. You get a detailed spec and a fixed price before any coding begins.
Then we build in 3 two-week sprints. Each sprint delivers a working set of endpoints with tests. The final two weeks are for documentation, performance tuning, and deployment.
What ships with every REST API project
You get a complete, production-ready API and all the tools to maintain it yourself.
Every project includes everything needed to run the API independently. We hand over the source code, infrastructure configs, and documentation.
Our engineers teach your team during the final sprint. You can extend the API on your own or come back to us for new features.
- Complete OpenAPI 3.0 specification in YAML/JSON
- Postman collection with example requests and environments
- Unit tests with Jest (Node) or Pytest (Python) - 80%+ coverage
- Integration tests for each endpoint against a test database
- CI/CD pipeline using GitHub Actions or GitLab CI
- Dockerfile and docker-compose for local development
- Sentry error tracking configured for exceptions and performance
- Datadog dashboard with API latency, error rate, and throughput metrics
- API documentation site (ReadMe or Stoplight) for external developers
- Full source code in your private GitHub/GitLab repo
What we ship in this practice.
Fintech Payment API
Built a PCI-compliant API using Node.js, Stripe, and PostgreSQL. Reduced transaction processing time by 40% and enabled real-time fraud scoring. Handles 50,000 requests/day.
Healthcare FHIR API
Developed a HIPAA-compliant FHIR API with Django REST and PostgreSQL. Integrated with 3 hospital EMR systems, enabling secure patient data exchange. Deployed in 10 weeks.
Ecommerce Product API
Built a high-throughput product catalog API using Spring Boot and Elasticsearch. Supports 10,000 requests per second with sub-50ms latency. Powers a multi-vendor marketplace.
SaaS Multi-tenant API
Designed a multi-tenant REST API with Ruby on Rails, Redis, and PostgreSQL. Onboarded 200 enterprise customers in 2 months with zero downtime. Row-level security enforced at the ORM.
IoT Device Data API
Created a REST API for IoT devices using Go, MQTT, and InfluxDB. Ingests 1 million data points per day with automatic scaling. Used by a smart building startup to monitor 500+ sensors.
Mobile App Backend API
Built a FastAPI-based backend for a social fitness app with Firebase push notifications and PostgreSQL. Supports 500,000 registered users with 99.95% uptime. 8-week delivery.
Why teams hire us.
Fixed price, not hourly
After a 2-week roadmap phase, we give you a fixed quote for the entire project. No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Every engineer on your project has 10+ years of experience building APIs. No juniors, no offshore teams, no handoffs. Your lead engineer will be the same person from roadmap to release.
OpenAPI-first design
We write the full OpenAPI 3.0 spec before writing any code. This eliminates misunderstandings and ensures your frontend and backend teams can work in parallel.
Security built in from day one
Every API includes OWASP Top 10 mitigation, rate limiting, JWT/OAuth authentication, and encryption at rest. We run automated security scans in every CI pipeline.
Production-ready from sprint one
We deploy to a staging environment in the first sprint and configure monitoring, logging, and auto-scaling. You see real performance metrics from week 3.
Ongoing support included
Every project includes 3 months of post-launch support. We monitor the API, fix production bugs, and help your team take over. 98% of clients renew for additional features.
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.