Leading Custom API Development Vendor for Scalable ProductsCustom API
We build production-grade APIs that connect your systems and scale to millions of requests. 12-week delivery, fixed price, full ownership.
IRPR is a leading custom API development vendor. We build REST, GraphQL, and gRPC APIs using Node.js, Go, Python (FastAPI), and .NET Core. Every API includes automated testing, rate limiting, and OAuth2/JWT authentication.
We deliver production-ready APIs in 8-12 weeks. Fixed pricing starts at $80K and goes to $250K for complex systems with multiple integrations. Our APIs are built to HIPAA, PCI-DSS, and SOC 2 standards.
CTOs hire us to replace legacy middleware. Product managers hire us to launch marketplaces and SaaS platforms. Engineering leads hire us to build microservices architectures that handle 10,000+ requests per second.
Types of software we ship.
REST API Development
Stateless JSON APIs for web and mobile apps. Built with Express.js or FastAPI, including Swagger documentation.
GraphQL API Development
Single endpoint APIs that let clients query exactly what they need. Built with Apollo Server or Hasura.
Microservices API Architecture
Decoupled services communicating via gRPC or message queues. Each service has its own database and CI/CD pipeline.
Third-Party API Integration
Connect your app to Stripe, Salesforce, HubSpot, Twilio, or any REST/SOAP endpoint. Includes error handling and retry logic.
API Gateway and Rate Limiting
Central gateway with authentication, throttling, and caching using Kong or AWS API Gateway. Supports 10,000+ concurrent requests.
Real-Time API with WebSockets
Low-latency APIs for chat, live dashboards, and notifications using Socket.io or WebSocket protocols.
Data API and ETL Pipelines
APIs that expose data from databases, data lakes, or external sources. Includes scheduled ETL jobs using Apache Airflow.
Internal API for Enterprise Systems
Private APIs that connect ERP, CRM, and HR systems. Built with service mesh and internal documentation via Stoplight.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS Platforms
Logistics and Travel
Why IRPR is a Leading Custom API Development Vendor
We ship APIs that handle real traffic from day one.
Our APIs are built with production-grade infrastructure. Every API includes automated CI/CD via GitHub Actions, monitoring via Datadog or Sentry, and load testing with k6. We deploy on AWS, GCP, or Azure using Terraform.
We have shipped 200+ products across 50 countries. Our APIs power applications that process millions of transactions per month. We maintain a 99.9% uptime SLA on all deployed APIs.
The Difference Between IRPR and Generic Development Shops
Most vendors deliver broken integrations and scope creep. IRPR delivers a production API that stays online.
Generic shops often skip load testing, leave endpoints undocumented, and ignore security compliance. We include Swagger/OpenAPI docs, automated tests, and compliance audits in every project.
IRPR uses a fixed-price model based on a detailed Roadmap. You know the exact cost and timeline before we write a single line of code.
- No load testing before launch
- No API documentation or auto-generated specs
- No CI/CD pipeline - manual deploys
- No rate limiting or DDoS protection
- No compliance reviews (HIPAA, PCI)
- Hourly billing with no fixed quote
- Load testing with k6 before every deploy
- OpenAPI 3.0 docs generated automatically
- GitHub Actions CI/CD from day one
- Rate limiting via API Gateway (Kong or AWS)
- HIPAA, PCI-DSS, SOC 2 compliance built in
- Fixed price quoted in Roadmap phase
Our 4-Phase Process for Custom API Development
From idea to production API in 12 weeks.
We follow a structured process that eliminates surprises. Each phase has clear deliverables and a fixed price.
You get a production-ready API with full documentation, automated tests, and deployment scripts. No hidden costs, no delays.
What Ships with Every Custom API Project
Everything you need to run and maintain your API.
We don't just hand over code. We deliver a complete operational package so your team can manage the API without us.
Every project includes source code, infrastructure code, and monitoring setup.
- Source code in your private GitHub repo
- OpenAPI 3.0 documentation (Swagger UI)
- CI/CD pipeline using GitHub Actions
- Docker containers for local development
- Terraform scripts for cloud deployment (AWS, GCP, Azure)
- Load testing scripts using k6
- Sentry error tracking and Datadog monitoring
- Rate limiting and authentication (OAuth2/JWT)
- Postman collection for endpoint testing
- Deployment runbook and architecture diagram
What we ship in this practice.
HIPAA-Compliant Patient Data API
Built a REST API that connects a telehealth platform to Epic EHR. Handles 50,000 patient records daily with end-to-end encryption. Tech stack: Node.js, PostgreSQL, AWS RDS, Epic FHIR APIs.
Payment Gateway API for a Fintech Startup
Developed a GraphQL API that processes 10,000 payments per hour with Stripe integration. Includes fraud detection and PCI-DSS compliance. Tech stack: Go, GraphQL, Stripe API, Redis.
Inventory Management API for an Ecommerce Brand
Built a microservices API that syncs inventory across 3 warehouses and 2 marketplaces (Amazon, Shopify). Reduced stockouts by 40%. Tech stack: Python FastAPI, PostgreSQL, RabbitMQ.
Multi-Tenant API for a SaaS Analytics Platform
Created a REST API with per-tenant rate limiting and billing via Recurly. Supports 500+ tenants with 99.9% uptime. Tech stack: .NET Core, Azure API Management, SQL Server.
Real-Time Tracking API for a Logistics Company
Developed a WebSocket API that streams GPS data from 1,000 delivery trucks. Reduced delivery time by 15%. Tech stack: Node.js, Socket.io, MongoDB, Google Maps API.
Booking and Reservation API for a Travel Platform
Built a REST API that handles 5,000 bookings per day with real-time availability. Integrated with Sabre and Amadeus. Tech stack: Ruby on Rails, PostgreSQL, Redis, Sidekiq.
Why teams hire us.
Fixed Price, Not Hourly Billing
Every API project gets a fixed price quote in the Roadmap phase. You know the exact cost before we start building. No hourly surprises, no scope creep charges.
Production-Grade Security and Compliance
We build APIs that pass HIPAA, PCI-DSS, and SOC 2 audits. Every endpoint includes authentication, encryption, and audit logging. We have shipped 50+ compliant APIs.
12-Week Delivery, Not 6 Months
Our average MVP timeline is 12 weeks. We use proven frameworks and CI/CD automation to move fast. We have delivered 200+ projects on time.
Full Ownership of Code and Infrastructure
You own all source code, Docker images, and Terraform scripts. No lock-in, no recurring license fees. You can deploy and maintain the API with your own team.
Senior Engineers Only, No Junior Devs
Every project is staffed with engineers who have 8+ years of experience. No offshore teams, no junior developers. Our team has shipped APIs for Fortune 500 companies.
Post-Launch Support and Monitoring
We set up Datadog and Sentry monitoring on day one. You get a 30-day warranty after launch. We respond to production incidents within 2 hours.
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.
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