Leading REST API Development FirmREST API
We build secure, scalable REST APIs that power your product. 200+ projects shipped to 50+ countries with 98% on-time delivery.
IRPR is a leading REST API development firm. We design and build custom REST APIs using Node.js, Python (Django), Ruby on Rails, and Go. Every API is documented with OpenAPI/Swagger and secured with OAuth 2.0 or JWT.
A typical custom REST API project ships in 8-12 weeks with fixed pricing from $80K to $250K. We handle compliance for HIPAA, PCI-DSS, and SOC 2 out of the box. You get a production-ready API with CI/CD, monitoring, and load testing included.
Our clients are CTOs launching API-first products, enterprise architects migrating to microservices, product owners building mobile backends, and founders validating SaaS ideas. They choose IRPR because we ship fast and own the full stack.
Types of software we ship.
SaaS REST API
A REST API for your SaaS platform handling authentication, billing, and multi-tenancy. Built with Stripe integration and rate limiting.
Ecommerce REST API
Custom REST endpoints for product catalog, cart, checkout, and order management. Integrates with Shopify or custom CMS via REST.
Mobile App Backend API
REST API designed for iOS and Android mobile apps. Includes push notifications, file uploads, and offline sync via GraphQL or REST.
Payment Gateway REST API
Secure REST API wrapping Stripe, PayPal, or Plaid. Handles PCI-DSS compliance, webhooks, and idempotency keys.
Data Aggregation REST API
REST API that collects and normalizes data from multiple sources (third-party APIs, databases, CSV). Uses Redis caching for speed.
Chatbot REST API
REST API for natural language processing and dialog management. Integrates with GPT-4, Dialogflow, or custom ML models.
CRM Integration REST API
Custom REST API that syncs data between your app and Salesforce, HubSpot, or Zoho. Supports OAuth 2.0 and webhook triggers.
Dashboard REST API
REST API powering real-time dashboards with WebSockets and event-driven updates. Built with Express and PostgreSQL for analytics.
We build for every business type.
fintech
healthcare
ecommerce
SaaS
logistics
Why Choose a Leading REST API Development Firm
When you hire IRPR, you get more than an API. You get a production-ready backend with monitoring, scaling, and security built in.
REST APIs are the backbone of modern applications. A poorly designed API leads to fragile integrations, slow performance, and costly rewrites. IRPR follows REST best practices: resource-oriented URLs, proper HTTP methods, statelessness, and comprehensive error handling.
We use OpenAPI 3.0 for documentation, automated testing with Jest and Postman, and deploy on AWS with auto-scaling. Every API is load-tested to handle 10,000+ concurrent requests per endpoint. Our clients see 40% faster integration times compared to self-built solutions.
How IRPR Differs from Generic API Developers
Most agencies promise custom APIs but deliver generic boilerplate. IRPR builds from scratch with your exact data model and business logic.
Generic shops often reuse the same API template for every client. You get endpoints that don't fit your domain, poor documentation, and security holes. They bill by the hour and push scope creep.
IRPR starts with a detailed Roadmap phase where we define every endpoint, data schema, and integration. We quote a fixed price and ship within 12 weeks. You own the code 100%. No reused code from other projects.
- Reuses templates that don't fit your data model
- No dedicated QA or load testing
- Hourly billing with surprise overruns
- Minimal documentation (often missing)
- No compliance expertise (HIPAA, PCI, SOC 2)
- You don't own the codebase
- Custom API designed around your domain and use cases
- Full test suite and load tests for every endpoint
- Fixed price agreed in the Roadmap phase
- Auto-generated OpenAPI 3.0 docs with each release
- HIPAA, PCI-DSS, SOC 2 compliance built in
- 100% source code ownership
Our REST API Development Process
We ship your API in four phases. Each phase ends with a deliverable you can review and approve.
Phase 1: Roadmap. We model your data, define all endpoints, and choose the tech stack. You get a detailed API specification and a fixed price quote in week 2.
Phase 2: Build. We implement each endpoint with authentication, validation, and error handling. You get a staging environment and can test endpoints live.
What Ships with Every REST API
You don't just get code. You get everything needed to run, scale, and maintain the API.
Every project includes a private GitHub repository with full commit history, a CI/CD pipeline on GitHub Actions, and a staging environment. We also deliver a Postman collection and an OpenAPI spec file.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Auto-generated OpenAPI 3.0 documentation
- Postman collection with example requests
- Load testing report (10K concurrent users tested)
- Sentry error tracking
- CloudWatch or Datadog monitoring dashboard
- Deployment runbook for AWS or GCP
What we ship in this practice.
REST API for a Fintech Lending Platform
Built a loan origination REST API handling credit checks, underwriting, and document uploads. Integrated with Plaid for income verification. Reduced loan processing time from 3 days to 2 hours. Tech stack: Node.js, PostgreSQL, Plaid, Twilio.
REST API for a Telemedicine App
Developed a HIPAA-compliant REST API for patient scheduling, video visits, and EHR integration. Handles 50,000+ appointments per month with 99.99% uptime. Tech stack: Python Django, HL7 FHIR, AWS, WebRTC.
REST API for an Ecommerce Marketplace
Built a REST API supporting 500+ sellers, real-time inventory sync, and Stripe Connect payouts. API handles 5M+ requests daily. Tech stack: Ruby on Rails, Redis, PostgreSQL, Stripe.
REST API for a Multi-Tenant SaaS Dashboard
Created a REST API with row-level security for a B2B analytics platform. Tenants can query their own data without seeing others. Load-tested for 100K concurrent users. Tech stack: Go, CockroachDB, GraphQL hybrid, AWS Lambda.
REST API for a Last-Mile Delivery Platform
Developed a logistics REST API with real-time driver tracking, route optimization, and delivery status updates. Integrated with Google Maps and Twilio SMS. Reduced delivery delays by 25%. Tech stack: Node.js, PostGIS, Redis, AWS SQS.
REST API for a Real-Time Analytics Dashboard
Built a streaming REST API that ingests 1M+ events per minute and exposes aggregated data to a React dashboard. Uses WebSockets for live updates. Tech stack: Python FastAPI, Kafka, InfluxDB, Docker.
Why teams hire us.
Fixed price from day one
We quote a fixed price in the Roadmap phase (week 2). No hourly billing, no surprise invoices. 98% of our projects finish within the quoted budget.
Senior engineers only
Our team averages 12+ years of experience. Every developer has shipped production REST APIs at scale. We pair a tech lead with each project.
Compliance built in, not bolted on
We handle HIPAA, PCI-DSS, and SOC 2 from the start. Audit logs, encryption at rest, and role-based access are part of every API.
You own everything
All source code, docs, and configs are in your repo. We keep nothing. You can deploy with any team after we finish.
8-12 week delivery
We ship production-ready APIs in 8-12 weeks. Our process is streamlined to avoid delays. You get a staging environment after 4 weeks.
Full lifecycle support
We provide 30 days of post-release support. We write runbooks, train your team, and hand over monitoring dashboards.
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.