Experienced REST API Development AgencyREST API Development
We build REST APIs that scale. Fixed pricing, 8-12 week delivery, and full code ownership.
IRPR builds production-grade REST APIs using Node.js, Python, Go, and Java Spring Boot. We design OpenAPI 3.0 specs before writing any code.
Every project ships with a Postman collection, API documentation, and automated tests. Typical timeline is 8-12 weeks. Fixed price ranges from $80,000 to $250,000 depending on complexity. We build HIPAA and PCI-DSS compliant APIs for regulated industries.
Startups needing a B2B SaaS API hire us. Enterprises migrating from monoliths to microservices hire us. Healthcare companies requiring HIPAA-compliant FHIR APIs hire us. Ecommerce brands building headless backends hire us.
Types of software we ship.
Backend REST API for Mobile Apps
REST API for iOS and Android backends using Node.js and Express. Includes push notifications, user management, and analytics endpoints.
Microservices REST API for SaaS
Decoupled microservices with Docker and Kubernetes. Each service has its own REST API, database, and CI/CD pipeline.
REST API for IoT Devices
Lightweight REST endpoints for IoT sensor data ingestion. Built with MQTT integration and Python FastAPI for low latency.
Payment API Integration
Secure REST API wrapping Stripe or Braintree. PCI-DSS compliant with idempotency keys and webhook retry logic.
Third-Party API Wrapper
Unified REST interface over multiple third-party APIs (Salesforce, HubSpot, QuickBooks). Handles rate limiting and caching.
Data Ingestion REST API
REST API for batch and streaming data uploads. Uses AWS S3 presigned URLs and Apache Kafka for event processing.
Authentication REST API
OAuth 2.0 and OpenID Connect REST API service. Supports social login, MFA, and JWT token management.
Real-time Feed REST API
REST endpoints combined with WebSocket for real-time data feeds. Used for live dashboards, notifications, and chat backends.
We build for every business type.
Fintech
Healthcare
Ecommerce
SaaS & Enterprise
Media & IoT
Why choose an experienced REST API development agency
IRPR delivers production-ready REST APIs on time and on budget.
We have shipped over 200 products for clients in 50 countries. Our APIs average 99.9% uptime and pass security audits quickly.
Fixed pricing from $80,000 to $250,000 covers the full lifecycle. You get a working API in 8-12 weeks, not months.
Experienced REST API development agency vs. generic dev shop
Not all API development is equal. Here is what IRPR does differently.
Generic shops treat your API as another ticket. IRPR treats it as a product with documentation, testing, and long-term maintainability.
We start with a 2-week Roadmap phase that defines every endpoint and data model. No surprise rework later.
- No OpenAPI spec upfront
- Hourly billing with scope creep
- Junior developers with no API experience
- No dedicated PM
- APIs break on deployment
- No integration tests
- OpenAPI 3.0 spec before coding
- Fixed price from day one
- Senior engineers only (10+ years avg)
- Dedicated product manager
- Staged deployments with CI/CD
- Unit + integration + load tests
How IRPR builds your REST API
We follow a four-phase process to deliver a production-ready API.
Each phase has clear deliverables and gates. You see progress every week.
No black boxes, no missed deadlines, no code dumps at the end.
What ships with every REST API project
We do not just deliver endpoints. You get the full package.
- OpenAPI 3.0 specification
- Postman collection with examples
- CI/CD pipeline on GitHub Actions
- Docker images and Kubernetes manifests
- Unit tests (80%+ coverage)
- Load tests with k6
- Sentry error tracking
- Source code in your repo
- Deployment scripts for AWS/GCP/Azure
- API documentation website
What we ship in this practice.
Payment API for fintech startup
Built a REST API for a B2B payment platform using Go and Stripe. Reduced transaction processing time by 40% and passed PCI-DSS audit without findings.
Patient data API for telehealth
Developed a FHIR-compliant REST API for telemedicine using Python FastAPI and AWS HealthLake. Handles 10,000 patient records per day with 99.9% uptime.
Product catalog API for headless ecommerce
Created a REST API for a headless ecommerce store using Node.js and Elasticsearch. Improved search result speed from 2 seconds to 150ms.
Inventory microservices for manufacturing
Redesigned a monolithic ERP into microservices with REST APIs using Java Spring Boot and Kafka. Cut deployment time from 1 week to 1 hour.
Real-time analytics API for media platform
Built a real-time streaming API for video analytics using WebSockets and Apache Flink. Provides sub-second latency for 50k concurrent users.
Integration API for CRM and marketing
Developed a unified REST API to sync data between Salesforce and HubSpot using Python and Celery. Reduced manual data entry by 8 hours per week.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Our team averages 10+ years of experience. No junior developers, no offshore handoffs, no learning on your dollar.
8-12 week MVPs
We deliver a working API in 8-12 weeks. Most agencies take 6 months or more for the same scope.
Code ownership guaranteed
You own all source code, documentation, and IP from day one. No licensing fees, no lock-in, no hidden costs.
HIPAA and PCI-DSS compliance
We build APIs that pass compliance audits. We have shipped 30+ HIPAA-compliant systems and 15+ PCI-DSS certified platforms.
Dedicated product manager
Every project includes a dedicated product manager who tracks milestones and reports progress weekly. Clients rate our communication 4.9/5.
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.