Premium Rest API Development StudioRest API
We build custom REST APIs that scale to millions of requests. Get a production-ready API in 12 weeks with fixed pricing.
IRPR builds premium REST APIs for startups and enterprises that need reliable, documented, and scalable backends. We use Node.js, Go, Python, and OpenAPI 3.0 to design versioned endpoints with automated testing.
Average delivery is 12 weeks from spec to production. Fixed price starts at $80K for a full REST API with authentication, rate limiting, and database. Every project includes CI/CD, infrastructure-as-code, and a Postman collection.
We work with CTOs launching SaaS products who need a backend that scales, product managers building mobile app APIs, and founders creating marketplace platforms that require high-throughput endpoints.
Types of software we ship.
Payment Gateway API
Process transactions with Stripe, Braintree, or Adyen. Includes webhooks, idempotency keys, and PCI-DSS compliance.
Social Media API
Build feeds, notifications, and real-time messaging. Uses WebSocket, Redis, and Elasticsearch for low-latency delivery.
Inventory Management API
Sync stock levels across warehouses and marketplaces. Integrates with Shopify, Amazon MWS, and NetSuite via REST.
Booking and Reservation API
Handle availability, scheduling, and payments. Supports timezone-aware slots and Stripe Connect for marketplace payouts.
Analytics Reporting API
Expose dashboards and real-time metrics using ClickHouse or TimescaleDB. Returns aggregated data in under 50ms.
User Authentication API
Provide OAuth2, JWT, and SSO. Works with Auth0, Firebase, or custom identity stores with PostgreSQL.
AI/ML Inference API
Serve machine learning models via REST endpoints. Uses TensorFlow Serving, ONNX, or PyTorch with GPU acceleration.
Geo-Location API
Geocode, reverse geocode, and search by radius. Uses PostGIS, Mapbox, and Redis for spatial caching.
We build for every business type.
E-commerce
Healthcare
Fintech
Logistics
Real Estate
Why a premium REST API matters for your product
Your API is the backbone of every frontend, mobile app, and third-party integration.
A poorly designed API causes broken integrations, slow response times, and frustrated developers. IRPR builds each premium REST API with OpenAPI contracts, versioning, and automated checks from day one.
We design for scale: every endpoint uses database indexing, caching headers, and connection pooling. Our APIs handle 10,000 requests per second without restarts. We monitor with Sentry and New Relic to catch issues before you do.
Generic dev shop vs a premium REST API studio
Most agencies skip API contracts, testing, and monitoring. IRPR delivers a production-grade API that your team can trust.
A generic shop hands you a zip file with code and disappears. They use no spec, no CI/CD, and no load testing. When your traffic spikes, the API breaks and you pay extra for fixes.
IRPR treats your API as a product. We write the OpenAPI spec before writing a single line of code. Every endpoint is tested with Postman and run through CI/CD. You get a private npm/GitHub package, cloud infrastructure, and monitoring from day one.
- No API contract or documentation
- Hourly billing with scope creep
- Manual testing only
- No error tracking
- Single developer bus factor
- No load testing
- OpenAPI 3.0 spec before coding
- Fixed price with clear milestones
- Automated Postman + Jest tests in CI
- Sentry and DataDog monitoring
- Team of 2 senior engineers per project
- k6 load tests to 10,000 rps
Our REST API development process
From idea to production in 12 weeks. Every milestone is gated by your sign-off.
We start with a specification phase where we write the OpenAPI spec and agree on all endpoints, request/response models, and error codes. You review the spec before any code is written.
Then we build iteratively in 2-week sprints. You see working endpoints every sprint. The final week is load testing, documentation generation, and deployment to your cloud account.
What ships with every premium REST API
You get more than code. These are the deliverables our clients rely on.
We ship everything you need to maintain, debug, and evolve your API. No surprises, no missing pieces.
- OpenAPI 3.0 spec file (YAML/JSON)
- Postman collection with all endpoints
- CI/CD pipeline on GitHub Actions
- Cloud infrastructure code (Terraform)
- Sentry error and performance monitoring
- Rate limiting middleware (Redis-based)
- API authentication (JWT + OAuth2)
- Database migrations (Alembic/Knex)
- Load testing report (k6)
- Documentation hosted on Redoc or Swagger UI
What we ship in this practice.
Payment Gateway API for Fintech
Built a REST API that processes 2,000 transactions per minute with idempotency and real-time fraud scoring. Reduced failed payments by 22% using retry logic. Tech stack: Node.js, Stripe, PostgreSQL, Redis.
Booking API for Travel
Created a reservation API handling 10,000 concurrent bookings per hour with inventory locking. Search response times under 100ms. Tech stack: Go, PostgreSQL, Redis, RabbitMQ.
Inventory API for Retail
Synced 500,000 SKUs across 3 warehouses and Shopify in real-time. Reduced stockout notification lag from 30 minutes to 5 seconds. Tech stack: Python, FastAPI, Kafka, MongoDB.
User Auth API for SaaS
Delivered an OAuth2/OpenID Connect API that authenticated 1 million users in the first month. Included social login, MFA, and session management. Tech stack: Go, PostgreSQL, Redis, Auth0.
Analytics API for Media
Served 5 million daily queries of aggregated event data with sub-second latency. Used ClickHouse for real-time analytics and Redis for caching. Tech stack: Node.js, ClickHouse, Redis, Istio.
Real-Time Tracking API for Logistics
Built a WebSocket-based REST API that tracked 10,000 shipments daily with position updates every 2 seconds. Reduced dispatch errors by 18%. Tech stack: Go, WebSocket, Redis, TimescaleDB.
Why teams hire us.
Fixed price, not hourly
Every premium REST API project gets a fixed quote during the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
OpenAPI first by default
We write the OpenAPI 3.0 specification before writing code. This means you review and approve every endpoint, model, and error code before we build.
Production-grade from day one
Your API runs on AWS or GCP with auto-scaling, health checks, and zero-downtime deployments. We configure Sentry, DataDog, and rate limiting in week 1.
Dedicated senior engineers
You get a team of 2 senior engineers with 10+ years average experience. No junior developers, no outsourcing to multiple time zones.
Compliance-ready (SOC 2, HIPAA, PCI)
We build APIs that meet SOC 2 Type II, HIPAA, and PCI-DSS requirements. Our audit logs, encryption, and access controls pass third-party audits.
Post-launch support included
Every project includes 30 days of post-launch support with 4-hour response SLA. We stay on call to help you integrate your frontend or mobile app.
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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