Affordable Custom API Development Developers from IRPRAPI Developers
We build custom APIs for your business at fixed prices. Expect a working prototype in 8-12 weeks with senior engineers only.
IRPR builds affordable custom api development developers for web and mobile applications using Node.js, Python, Go, and GraphQL. We design RESTful and event-driven architectures that handle thousands of requests per second.
Every project ships with source code in your repository, CI/CD pipeline on GitHub Actions, and monitoring via Sentry and Datadog. Timeline is 8-12 weeks for an MVP. Fixed pricing starts at $80K and goes to $250K depending on complexity. We support HIPAA, PCI-DSS, SOC 2, and FERPA compliance.
We work with CTOs building new product integrations, startup founders who need a secure API layer for their SaaS, ecommerce brands requiring custom payment or inventory APIs, and healthcare organizations needing HIPAA-compliant data exchange. These teams choose us because we deliver affordable custom api development developers without hourly billing.
Types of software we ship.
REST API Development
Stateless RESTful APIs using Express.js or FastAPI, with JWT authentication, rate limiting, and PostgreSQL. Designed for scalability.
GraphQL API Development
Flexible GraphQL APIs with Apollo Server or Yoga, enabling frontend teams to query exactly the data they need. Reduces overfetching.
API Integration Services
Connect your system to 200+ third-party APIs like Stripe, Salesforce, Shopify, or Twilio. We handle auth, mapping, and error handling.
Microservices API Development
Decoupled microservices with Docker and Kubernetes, each exposing REST or gRPC endpoints. Built for continuous deployment.
Real-time API Development
WebSocket and Server-Sent Events APIs for live data streaming. Used for chat, notifications, and live dashboards. Tech: Socket.io, Redis Pub/Sub.
Internal API Development
Private APIs for internal tools and data pipelines. Includes authentication, logging, and rate limiting. Often built with FastAPI and PostgreSQL.
Partner API Development
External APIs for partners with API keys, usage plans, and documentation. Built with Kong or AWS API Gateway. Includes developer portal.
Mobile API Development
APIs optimized for mobile clients with reduced payloads, offline support, and batch endpoints. Uses GraphQL or REST with pagination.
We build for every business type.
SaaS companies
Ecommerce
Healthcare
Fintech
Startups and SMBs
Why Affordable Custom API Development Works for You
Our track record proves businesses get fast, reliable APIs.
IRPR has shipped over 200 custom APIs for clients in 50 countries. Our average delivery time is 12 weeks, and 98% of projects land on schedule. Every API we build targets 99.9% uptime with monitoring and failover built in.
These numbers come from a repeatable process. We start with a 2-week roadmap phase that defines the contract, then assign senior engineers who have built APIs for NASA and healthcare providers. No junior developers, no hourly billing.
The IRPR Difference in Custom API Development
How we compare to generic development shops when you need affordable custom api development developers.
Most agencies bill hourly and assign junior talent. That leads to budget overruns and messy code. IRPR works differently: we give you a fixed price after a roadmap, then assign senior engineers who own the outcome.
We also build compliance into every API from day one. Whether you need HIPAA for healthcare or PCI-DSS for payments, our engineers know the standards. You get audit-ready APIs without extra costs.
- Hourly billing leads to surprises
- Unclear timeline and scope creep
- Junior developers learn on your dime
- No compliance expertise built in
- Code stays on their servers
- Support ends at launch
- Fixed price after 2-week roadmap
- 8-12 week delivery guarantee
- Senior engineers with 10+ years experience
- HIPAA/PCI/SOC2 ready by default
- Full source code ownership
- 12 months post-launch support included
Our API Development Process
We follow a transparent 4-step process for every affordable custom api development developers project.
Every API project at IRPR follows the same scaffold. It starts with a deep discovery phase where we map your data, authentication flows, and integration points. We choose the tech stack together.
After the roadmap, our senior engineers build the API in 8-12 weeks with weekly demos. You see progress in real time and can adjust requirements without extra charges.
What Ships with Every Affordable Custom API Development Project
Every project includes these deliverables by default.
When IRPR delivers your API, you get more than just code. We include everything needed to run, monitor, and maintain the API in production. Your team can take over immediately.
- Source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- API documentation with Swagger/OpenAPI
- Postman collection for quick testing
- Sentry error tracking and alerts
- Datadog monitoring dashboards
- Rate limiting and authentication middleware
- Load testing results and performance benchmarks
- Deployment scripts for AWS/GCP/Azure
- 12 months of support and bug fixes
What we ship in this practice.
Payment Integration API for Fintech Startup
Built a PCI-compliant API that connected Stripe, Plaid, and QuickBooks, reducing manual reconciliation by 20 hours per month. Tech stack: Node.js, PostgreSQL, Stripe SDK, Plaid API.
Healthcare Data Exchange API
Developed a HIPAA-compliant API for a telemedicine platform, handling patient records from 3 different EHR systems. Reduced data entry errors by 40%. Tech stack: Python, FHIR, Azure FHIR API, Redis.
Inventory Management API for Ecommerce
Created a RESTful API that synced inventory across Shopify, Amazon, and their warehouse system. Cut stock discrepancies from 5% to 0.2%. Tech stack: Ruby on Rails, PostgreSQL, Shopify API, Amazon MWS.
Real-time Analytics API for SaaS
Built a WebSocket-based API that streamed live analytics to dashboards, supporting 10,000 concurrent connections. Reduced page load time by 60%. Tech stack: Go, WebSockets, Redis, Elasticsearch.
Partner API for Travel Booking Platform
Developed a partner API that aggregated flight and hotel data from 20+ providers, delivering 99.9% uptime and 200ms response times. Tech stack: Node.js, GraphQL, Redis, AWS Lambda.
Customer Data API for Media Company
Built an event-driven API that unified user profiles from 4 legacy systems, enabling personalized content recommendations. Increased engagement by 25%. Tech stack: Python, Kafka, Snowflake, FastAPI.
Why teams hire us.
Fixed Price, Not Hourly
Every project gets a fixed price after a 2-week Roadmap phase. You never see hourly invoices or surprise charges. Our clients save an average of 30% compared to hourly billing for affordable custom api development developers.
Senior Engineers Only
We assign senior engineers with 10+ years of experience to every API project. No junior developers. Our team has built APIs for organizations like NASA and healthcare systems.
Full Code Ownership
When we ship, you own every line of code. No licensing fees, no lock-in. Your team can modify or extend the API immediately after launch.
Compliance Built In
We build APIs that pass HIPAA, PCI-DSS, SOC 2, and FERPA audits. Our engineers understand encryption, audit logging, and access controls by default.
12-Week MVP Guarantee
We deliver a working MVP within 8-12 weeks. If we miss the deadline, our next sprint is free. Over 98% of our projects ship on time.
Post-Launch Support Included
Every project includes 12 months of support after release. We monitor uptime, fix bugs, and help with minor changes at no extra cost.
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.