Top REST API Development VendorDevelopment Vendor
We build production-ready REST APIs for your platform. Ship in 8-12 weeks with fixed pricing.
IRPR is a top REST API development vendor. We build custom RESTful APIs using Node.js, Python (FastAPI), Go, and .NET Core for high-traffic applications.
We ship APIs in 8-12 weeks with fixed pricing from $80K to $250K. Our APIs are designed for compliance with HIPAA, PCI-DSS, and SOC 2 standards.
Who hires us: CTOs needing a scalable API backend for a SaaS platform, startup founders launching a mobile app requiring a robust REST API, and enterprise teams replacing legacy SOAP APIs with modern RESTful services.
Types of software we ship.
REST API for Ecommerce
Product catalog, cart, checkout, and payment APIs built with Stripe integration and real-time inventory sync.
REST API for SaaS
User authentication, subscription management (Stripe), and multi-tenant data APIs with rate limiting and caching.
REST API for Mobile Apps
Backend API for iOS/Android apps with push notifications, file uploads, and social login (OAuth2).
REST API for Healthcare
HIPAA-compliant APIs for patient data exchange, FHIR integration, and secure video telemedicine endpoints.
REST API for Fintech
PCI-DSS compliant APIs for payment processing, KYC verification, and transaction history with Plaid integration.
REST API for IoT
Device registration, telemetry ingestion via MQTT, and real-time data streams using WebSockets and InfluxDB.
REST API for CRM Integration
APIs that sync data between your app and Salesforce, HubSpot, or custom CRM with webhook support.
REST API for Content Platforms
Media streaming, content delivery via CDN, search (Elasticsearch), and user-generated content moderation APIs.
We build for every business type.
Ecommerce and Retail
SaaS and Technology
Healthcare and Life Sciences
Fintech and Banking
Media and Entertainment
Why IRPR is the Top REST API Development Vendor
Our track record speaks for itself.
We have shipped over 200 production APIs for clients in 50+ countries. Our APIs are used by millions of end users daily.
Every API is built with OpenAPI 3.0 specification, automated testing, and CI/CD pipelines from day one.
Generic Dev Shop vs Top Vendor
Not all API vendors are equal.
Many agencies promise APIs but deliver spaghetti code and no documentation. They skip testing and charge hourly.
IRPR delivers production-grade APIs with OpenAPI specs, test coverage above 90%, and fixed price contracts.
- No OpenAPI specification
- Hourly billing with scope creep
- No automated testing
- No CI/CD setup
- No compliance documentation
- No post-launch support
- Full OpenAPI 3.0 spec delivered
- Fixed price from Roadmap phase
- 90%+ test coverage (Jest, Postman)
- CI/CD pipeline on GitHub Actions
- HIPAA/PCI-DSS/SOC 2 compliance docs
- 30-day post-launch support included
Our REST API Development Process
From idea to production in 12 weeks.
We use a proven 4-phase framework: Idea, Roadmap, Product, Release.
Each phase has clear deliverables and a fixed price commitment.
What Ships with Every REST API
No surprises. Everything you need to run in production.
Every project includes the following deliverables. You own all code and infrastructure.
No license fees, no vendor lock-in.
- Source code in your private GitHub repo
- OpenAPI 3.0 specification (Swagger UI)
- CI/CD pipeline with GitHub Actions or GitLab CI
- Automated unit and integration tests (90%+ coverage)
- Docker containers for local development
- Deployment scripts for AWS, GCP, or Azure
- Sentry error tracking and monitoring
- Postman collection for API testing
- 30-day post-launch bug fixes and support
- HIPAA/PCI compliance documentation (if applicable)
What we ship in this practice.
Subscription Billing API for SaaS Platform
Built a REST API for recurring billing with Stripe integration. Reduced churn by 15% with automated payment retries. Tech stack: Node.js, PostgreSQL, Stripe.
Telemedicine Video API for Healthcare Startup
Created a HIPAA-compliant REST API for patient-provider video sessions. Handled 10,000 concurrent calls within weeks of launch. Tech stack: Python FastAPI, Twilio, AWS.
Inventory Sync API for Multi-Channel Retailer
Developed a REST API that syncs inventory across Shopify, Amazon, and warehouse systems. Reduced overselling by 95%. Tech stack: Go, Redis, RabbitMQ.
Payment Gateway API for Fintech App
Designed a PCI-DSS compliant REST API for card tokenization and payment processing. Processed $50M in transactions first month. Tech stack: Java Spring Boot, AWS KMS.
Real-Time Notification API for Social Network
Built a scalable REST API with WebSocket fallback for push notifications. Achieved 99.99% delivery success. Tech stack: Django, Celery, Firebase Cloud Messaging.
Property Listing API for Real Estate MLS
Delivered a REST API to ingest listings from 500 MLS feeds and serve fast search results. Decreased search latency from 3s to 200ms. Tech stack: Node.js, Elasticsearch, Redis.
Why teams hire us.
Fixed Price, Not Hourly
Every API project gets a fixed price quote after the Roadmap phase (week 2). No surprise invoices or scope creep charges.
200+ Production APIs Delivered
We have built REST APIs for 200+ clients across 50 countries. Our APIs handle over 1 billion requests per month combined.
OpenAPI Spec by Default
Every API ships with a complete OpenAPI 3.0 specification and Swagger UI. Your frontend team can start integration immediately.
Security and Compliance Built-In
We include HIPAA, PCI-DSS, and SOC 2 compliance documentation for applicable projects. Our APIs use OAuth2, API keys, and rate limiting from day one.
Full Ownership of Code
You own all source code, Docker images, and infrastructure scripts. No vendor lock-in or recurring license fees.
12-Week Delivery Guarantee
Our average API project ships in 12 weeks. We have a 98% on-time delivery rate across 200+ products.
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.