Custom API Development PartnerDevelopment Partner
We build custom APIs for web, mobile, and SaaS products. 200+ projects shipped with 8-12 week timelines.
IRPR builds custom APIs that connect your applications, automate workflows, and scale with your business. We use Node.js, Python, Go, GraphQL, REST, and cloud-native tools like AWS Lambda, Docker, and Kubernetes.
Every API project ships in 8-12 weeks with a fixed price from $80K to $250K. We handle compliance requirements including HIPAA, PCI-DSS, and SOC 2.
We work with CTOs scaling SaaS platforms, product managers integrating third-party services, and engineering leads building microservices architectures. Also startups needing a production-ready API for their MVP.
Types of software we ship.
REST API Development
Build scalable RESTful APIs with Node.js, Express, and PostgreSQL. Supports versioning, rate limiting, and OpenAPI documentation.
GraphQL API Development
Create flexible GraphQL APIs with Apollo Server and Prisma. Enables efficient data fetching and real-time subscriptions.
Third-Party API Integration
Connect your app to Stripe, Salesforce, Slack, and more. We handle authentication, rate limits, and error handling.
Microservices API Gateway
Unify multiple microservices behind a single gateway using Kong or AWS API Gateway. Includes routing, auth, and monitoring.
Real-Time API (WebSocket)
Build real-time APIs with WebSockets using Socket.io or AWS WebSocket API. Ideal for chat, live updates, and notifications.
Internal API for Enterprise
Design internal APIs with RBAC, audit logging, and service mesh integration. Uses Envoy or Istio for security.
Public API for Partners
Launch a public API with developer portal, API keys, usage tiers, and documentation. Powered by Swagger and Postman.
Data API (ETL/ELT)
Build data pipelines with Apache Airflow or AWS Glue. Expose aggregated data via REST endpoints for analytics.
We build for every business type.
SaaS
Ecommerce
Healthcare
Fintech
Logistics
Why choose IRPR as your custom API development partner?
We deliver APIs that are secure, scalable, and on time.
IRPR has shipped over 200 products across 50 countries. Our APIs power SaaS platforms, healthcare systems, and fintech applications with 99.9% uptime.
We follow a fixed-price model with 8-12 week delivery. Every project includes compliance, monitoring, and full documentation.
Generic dev shop vs IRPR
Most agencies overpromise and underdeliver. Here's the difference.
Generic shops bill by the hour, change scope without warning, and hand over messy code. IRPR gives you a fixed price, a fixed timeline, and clean, documented APIs.
We build compliance into every API from day one. You get full ownership of the code and a 2-week post-launch support window.
- Hourly billing that inflates costs
- No compliance expertise
- No fixed timeline
- Code ownership unclear
- One-size-fits-all architecture
- Poor documentation
- Fixed price from $80K
- HIPAA, PCI-DSS, SOC 2 built-in
- 8-12 week delivery guarantee
- Full code ownership
- Custom architecture for your use case
- OpenAPI specs and Postman collections
Our API development process
From idea to production in 8-12 weeks.
We follow a four-phase process that starts with a 2-week Roadmap. You know exactly what you're getting and what it costs before we write a line of code.
Each phase has clear deliverables and milestones. You get weekly updates and a demo at the end of each sprint.
What ships with your API
Every project includes these deliverables by default.
- Source code in your GitHub repo
- CI/CD pipeline on GitHub Actions
- OpenAPI 3.0 specification
- Postman collection with examples
- Sentry error tracking
- CloudWatch or Datadog monitoring
- Rate limiting and authentication (JWT/OAuth)
- Load testing report (k6 or Artillery)
- Deployment runbook
- 2 weeks of post-launch support
What we ship in this practice.
Payment API for Fintech Startup
Built a PCI-DSS compliant payment processing API that reduced transaction failures by 40%. Tech stack: Node.js, Stripe, AWS Lambda, PostgreSQL.
EHR Integration API for Healthcare Platform
Developed a HIPAA-compliant API to sync patient records with Epic, cutting manual data entry by 12 hours per week. Tech stack: Python, FHIR, Azure, Docker.
Real-Time Inventory API for Ecommerce
Created a WebSocket-based inventory API that updated stock levels across 3 warehouses in under 1 second. Tech stack: Go, Redis, RabbitMQ, AWS ECS.
Partner API for SaaS Platform
Designed a public REST API that enabled 50+ third-party integrations, driving 30% new revenue. Tech stack: Node.js, GraphQL, MongoDB, Kong Gateway.
Microservices API Gateway for Logistics
Implemented an API gateway unifying 12 microservices, reducing latency by 60%. Tech stack: Kong, Kubernetes, Golang, Prometheus.
Data Aggregation API for Real Estate
Built an API that aggregates MLS data from 5 sources into a single endpoint, saving 20 hours of manual data collection per week. Tech stack: Python, AWS Glue, PostgreSQL, FastAPI.
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.
8-12 week delivery guarantee
We ship production-ready APIs in 8-12 weeks. Over 200 projects delivered with a 98% on-time rate.
Full code ownership
You own 100% of the code, specs, and documentation. We transfer everything to your GitHub repo upon completion.
Compliance built-in
HIPAA, PCI-DSS, and SOC 2 are baked into every API from day one. We handle BAAs, encryption, and audit logs.
Senior engineers only
Our team consists of senior engineers with 10+ years of experience. No junior devs, no outsourcing.
Post-launch support included
Every project comes with 2 weeks of free post-launch support. We also offer ongoing maintenance plans starting at $5K/month.
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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