Leading API Development ConsultantsAPI Development
We build APIs that scale from 1 to 1 million users. 200+ products shipped, 50+ countries, fixed price.
We design and build RESTful and GraphQL APIs using Node.js, Python (FastAPI), and Go. Our APIs handle authentication, rate limiting, and real-time data sync with WebSockets.
Every project ships with OpenAPI 3.0 specs, Postman collections, and CI/CD pipelines on GitHub Actions. Timeline: 8-12 weeks for MVP. Pricing: $80K-$250K fixed. Compliance: SOC 2, HIPAA, PCI-DSS as needed.
CTOs at SaaS companies needing API-first architecture. Platform engineers at fintech firms requiring PCI-DSS compliant APIs. Product managers at ecommerce brands building marketplace integrations. Startup founders launching API products with 12-week timelines.
Types of software we ship.
RESTful API for Web Apps
Build stateless REST APIs that integrate with frontend frameworks like React and Vue. Includes JWT auth and rate limiting.
GraphQL API for Mobile Apps
Develop GraphQL APIs with Apollo Server for mobile apps. Enables efficient data fetching with a single endpoint.
WebSocket API for Real-Time Features
Create real-time APIs using Socket.io or WebSockets for live chat, notifications, and collaborative editing.
gRPC API for Microservices
Design high-performance gRPC APIs using Protocol Buffers. Ideal for internal microservices communication with low latency.
Third-Party API Integration
Integrate external APIs like Stripe, Twilio, and Salesforce. Handle authentication, webhooks, and error handling.
API Gateway Design
Architect API gateways using Kong or AWS API Gateway. Manage routing, throttling, and authentication across multiple services.
Internal Data API
Build internal APIs to expose data from legacy databases or data warehouses. Use GraphQL or REST for flexible querying.
Public API for Developer Platform
Create developer-friendly public APIs with comprehensive documentation, SDKs, and API keys management.
We build for every business type.
SaaS Platforms
Fintech
Healthcare
Ecommerce
Logistics and Supply Chain
Why Leading API Development Consultants Choose IRPR
Our clients come to us for APIs that work under load and ship on time.
We have shipped over 200 API-driven products across 50 countries. Our on-time delivery rate is 98%, and we maintain a 99.9% uptime SLA for all production APIs.
Every API we build includes automated load testing with k6, error tracking with Sentry, and a full CI/CD pipeline. Our fixed pricing model means no surprises.
The Difference Between Generic Shops and IRPR
Not all API consultants deliver the same quality. Here is how we compare.
Many development shops assign junior engineers to API projects and bill by the hour. They deliver incomplete documentation and leave you with unclear code ownership.
IRPR assigns senior engineers only, uses fixed pricing, and delivers production-ready APIs with full documentation, CI/CD, and monitoring from day one.
- Hourly billing with no cost cap
- Junior developers on your project
- No API documentation delivered
- No CI/CD pipeline included
- No post-launch support
- Code ownership is unclear
- Fixed price after Roadmap phase
- Senior engineers only (15+ years avg)
- OpenAPI spec and Postman collection included
- CI/CD pipeline on GitHub Actions
- 30 days production support included
- Full code ownership guaranteed
Our API Development Process in 4 Phases
We follow a structured process to deliver APIs that meet your exact requirements.
Each phase has clear deliverables and milestones. You see progress every week, not just at the end.
Our process ensures that the API design is validated before any code is written, reducing rework.
What Ships by Default with Every API Project
Every API delivery includes these assets. No extra charges, no hidden items.
You get everything you need to maintain and extend the API after launch.
- Source code in private GitHub repo
- OpenAPI 3.0 specification file
- Postman collection with example requests
- CI/CD pipeline using GitHub Actions
- Docker containers for local development
- Sentry error tracking configured
- Deployment scripts for AWS or GCP
- Load testing results with k6
- API documentation hosted on ReadMe
- 30 days production support SLA
What we ship in this practice.
Real-Time Inventory API for Ecommerce
Built a WebSocket API for a mid-market retailer to sync inventory across 50 stores. Reduced stockouts by 30%. Stack: Node.js, Socket.io, Redis, PostgreSQL.
Payment Processing API for Fintech Startup
Developed PCI-DSS compliant REST API handling 10k transactions/day. Cut integration time for merchants from 4 weeks to 3 days. Stack: Python FastAPI, Stripe Connect, AWS Lambda.
Patient Data API for Telemedicine
Created HIPAA-compliant GraphQL API for a telehealth platform. Enabled real-time data exchange between EHR and mobile app. Stack: GraphQL, Apollo, PostgreSQL, AWS HealthLake.
Marketplace API for SaaS Platform
Designed public REST API for a B2B SaaS company. Third-party developers built 20 integrations in first 6 months. Stack: Node.js, Express, MongoDB, Kong API Gateway.
Fleet Tracking API for Logistics
Built gRPC API for a logistics firm to track 500+ vehicles in real time. Reduced latency from 2 seconds to 50ms. Stack: Go, gRPC, Kafka, TimescaleDB.
Internal Data API for Enterprise
Consolidated 6 legacy databases into a single GraphQL API for a Fortune 500 company. Saved 40 hours/week of manual data reconciliation. Stack: GraphQL, Hasura, PostgreSQL, Snowflake.
Why teams hire us.
Fixed Price, Not Hourly
Every project gets a fixed quote after the Roadmap phase (week 2). No surprise invoices or scope creep charges.
Senior Engineers Only
Our team averages 15+ years of experience. No junior developers are assigned to client projects.
API-First Architecture
We design APIs using OpenAPI 3.0 before writing a line of code. This ensures consistency and easy integration.
Compliance Built In
We implement HIPAA, PCI-DSS, and SOC 2 controls from day one. Audits are included in the delivery.
Post-Launch Support
We provide 30 days of production support after launch. Includes monitoring, bug fixes, and performance tuning.
Full Code Ownership
You own all source code, documentation, and infrastructure scripts. No licensing fees or IP restrictions.
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.