Premium Custom API Development ServicesAPI Development
We build secure, high-performance APIs for your product. Get a production-ready API in 10-14 weeks with full documentation and monitoring.
IRPR builds premium custom APIs using Node.js, FastAPI, and Postgres. Every API includes auto-generated OpenAPI documentation, rate limiting with Redis, and JWT authentication.
Your API ships in 10-14 weeks with a fixed price between $80K and $200K. All projects comply with OWASP security standards and include Grafana monitoring dashboards.
We work with SaaS founders who need a customer-facing API, enterprise teams migrating legacy systems to REST, fintech startups requiring PCI-compliant payment APIs, and healthcare companies building FHIR-compliant patient data APIs.
Types of software we ship.
REST API development
Build RESTful APIs with OpenAPI specs, versioning, and Swagger UI. Integrates with Stripe, Twilio, and AWS.
GraphQL API development
Develop GraphQL APIs using Apollo Server and Prisma. Supports real-time subscriptions and efficient data loading.
Payment API integration
Build PCI-compliant payment APIs with Stripe, Braintree, or Adyen. Includes webhooks, refunds, and fraud detection.
Real-time API with WebSockets
Create real-time APIs using WebSockets and Socket.io. Used for live dashboards, trading platforms, and chat apps.
Internal API gateway
Design an internal API gateway with Kong or NGINX. Adds caching, throttling, and authentication for microservices.
Third-party API wrapper
Wrap third-party APIs (Salesforce, HubSpot, Shopify) into clean, unified interfaces. Simplifies multi-vendor integrations.
API for mobile backend
Build backend APIs for iOS and Android using Firebase or custom Node.js. Handles push notifications, auth, and offline sync.
Data ingestion API
Create high-throughput data ingestion APIs with Kafka or RabbitMQ. Processes real-time analytics and event streams.
We build for every business type.
Ecommerce
Fintech
Healthcare
SaaS
Logistics
Why premium custom API development matters
A well-architected API reduces development time and improves security.
IRPR has shipped over 200 APIs for companies across 50 countries. Each API is built with rate limiting, authentication, and thorough documentation from day one.
Our APIs average 99.9% uptime in production. The typical delivery time is 12 weeks, with a minimum investment of $80K for a fully production-ready product.
IRPR vs generic API agencies
Most agencies deliver under-documented, unmaintainable APIs that break in production.
Generic agencies often skip versioning, monitoring, and security audits. They hand over code with no documentation and expect you to figure out deployments alone.
IRPR treats your API as a product from day one. We ship with CI/CD, error tracking, and full ownership. Our APIs are designed to grow with your business.
- No API versioning plan
- No monitoring or alerts
- Manual deployment only
- No rate limiting
- No security audit
- Code not owned by you
- Semantic versioning from day one
- Sentry error tracking and Grafana dashboards
- CI/CD on GitHub Actions
- Rate limiting with Redis
- OWASP Top 10 security review
- Full source code ownership
Our API development process
We follow a four-phase process to ship your API on time and on budget.
Every project begins with a two-week Roadmap phase where we define endpoints, data models, and compliance requirements. You get a fixed price and timeline before any code is written.
Development happens in two-week sprints with continuous deployment to a staging environment. You see working endpoints every sprint and can adjust requirements.
What ships with your API
Every API comes with a complete production-ready package.
You don't just get code. IRPR ships everything needed to maintain and scale your API independently.
From CI/CD to monitoring, every deliverable is designed to save your team weeks of setup work.
- Source code in your GitHub repository
- OpenAPI 3.0 specification
- Postman collection with example requests
- CI/CD pipeline with automated tests on GitHub Actions
- Sentry error tracking and alerting
- Grafana dashboards for API latency, error rates, and traffic
- Rate limiting configuration with Redis
- JWT authentication with access and refresh tokens
- Database migration scripts (Postgres or MySQL)
- Deployment playbooks for AWS, GCP, or Azure
What we ship in this practice.
Payment API for fintech startup
Built a PCI-compliant payment API using Stripe and FastAPI. Reduced transaction processing time by 40% and passed SOC 2 audit within two months.
Real-time inventory API for ecommerce brand
Developed a real-time inventory API with WebSockets and Redis. Synchronized stock across Shopify and three warehouses, reducing overselling by 90%.
Patient data API for healthcare platform
Created a FHIR-compliant patient data API using Node.js and Azure FHIR server. Enabled secure data exchange with 12 hospitals, cutting integration time by 60%.
Multi-tenant API for SaaS product
Designed a multi-tenant API with per-tenant rate limiting and data isolation using Postgres schemas. Onboarded 150 new tenants in the first quarter.
Internal API gateway for logistics company
Built an internal API gateway with Kong and NGINX to connect 8 microservices. Reduced request latency by 35% and enabled centralized authentication.
Booking API for travel platform
Developed a booking API integrating Amadeus and Sabre GDS systems. Processed 5,000 bookings per day with 99.9% uptime, handling peak traffic up to 10x normal.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote after the two-week Roadmap phase. No hourly billing, no surprise invoices, no scope creep charges.
Full code ownership
You own 100% of the source code, documentation, and configurations. IRPR charges no licensing fees or recurring royalties.
Senior engineers only
Every project is assigned a lead engineer with 10+ years of experience. No junior developers, no offshore outsourcing, no training wheels.
API-first culture
Our entire team practices API-first design. Your API is fully designed and documented before a single line of production code is written.
Continuous delivery
We deploy to staging every 2-3 days during development. You see working endpoints weekly and can adjust priorities immediately.
Post-launch support
We provide 90 days of post-launch support including monitoring, bug fixes, and documentation updates. Your API stays healthy after launch.
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.
─── share this page ───
