Professional REST API Development ConsultantsRest API
We build RESTful APIs that scale. 50+ countries, 200+ products shipped.
IRPR builds production-grade REST APIs using Node.js, Python, Go, and Java with frameworks like Express, FastAPI, Gin, and Spring Boot. We design each API around an OpenAPI 3.0 specification, then implement with PostgreSQL, MongoDB, Redis, and deploy on AWS or GCP.
Our team ships a complete, documented, and tested REST API in 8 to 12 weeks. Pricing starts at $80,000 and goes up to $250,000 depending on complexity and compliance needs. Every API includes HIPAA, PCI-DSS, or SOC 2 security controls if required.
CTOs hire us to decouple systems and enable integrations. Startup founders use us to build their first API for an MVP. Enterprise product managers rely on us to create APIs that meet strict compliance and performance SLAs. Engineering leads bring us in to augment their team with senior API architects.
Types of software we ship.
REST API for E-commerce
Order processing, inventory sync, and payment APIs that scale to 10000+ requests per second. Integrates with Stripe, Shopify, Magento.
REST API for Payment Processing
PCI-DSS compliant endpoints for payment capture, refunds, and subscription management. Handles $50M+ monthly through Stripe and Square.
REST API for Real-Time Data Streaming
WebSocket-enhanced REST endpoints for live dashboards and event-driven architectures. Uses Kafka, Redis, or AWS Kinesis for buffering.
REST API for IoT Device Management
Device registration, telemetry ingestion, and command APIs for 10000+ sensors. Built with MQTT bridging and InfluxDB for time-series storage.
REST API for Healthcare Interoperability (FHIR)
HIPAA compliant FHIR R4 APIs for patient records, appointments, and claims. Connects with Epic, Cerner, and other EHR systems.
REST API for Social Media Integration
OAuth2-based APIs that publish content, retrieve feeds, and analyze engagement across Facebook, Twitter, Instagram, and LinkedIn.
REST API for CRM Automation
Bi-directional sync with Salesforce, HubSpot, and Zoho. Handles contact management, deal updates, and activity logging with conflict resolution.
REST API for Content Delivery Network
Caching, invalidation, and origin pull APIs for CDN services like Cloudflare, Akamai, or AWS CloudFront. Optimizes global latency.
We build for every business type.
E-commerce
Healthcare
Fintech
SaaS Products
IoT & Logistics
Why companies choose IRPR for REST API development
Our APIs handle billions of requests per month with 99.9% uptime.
IRPR has built over 200 REST APIs for clients across 50 countries. Each API follows a rigorous design-first process that starts with an OpenAPI 3.0 spec. This ensures every endpoint is documented, testable, and versioned from day one.
We guarantee 99.9% uptime for production APIs through redundant deployments, automated failover, and real-time monitoring with Datadog or CloudWatch. Our team also provides post-launch support and can scale your API to handle 10x traffic spikes.
IRPR vs generic development shops
The differences that matter for your API.
Not all API development teams deliver the same quality. Generic shops often skip API design documentation, neglect versioning, and fail to set up monitoring. That leads to brittle APIs and costly rewrites.
IRPR treats every API as a product. We define the contract first, automate testing and deployment, and build in observability from the start. The result is a maintainable, secure API that your team can extend easily.
- Unclear API design
- No documentation
- No versioning strategy
- No security auditing
- No CI/CD for API
- No monitoring
- OpenAPI spec first
- Auto-generated documentation
- Semantic versioning
- Security testing per OWASP
- Automated deployment pipeline
- Real-time monitoring with alerts
Our REST API development process
From idea to production API in 12 weeks.
We follow a four-phase approach that de-risks your investment. Each phase has clear deliverables and a go/no-go decision point. You control scope and budget at every step.
What you get in every REST API engagement
Everything needed to run and scale your API.
We ship a complete package, not just code. Your team can take over immediately with full documentation, automated pipelines, and monitoring tools.
- OpenAPI 3.0 specification
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Postman collection for testing
- API documentation portal (Swagger UI)
- Load testing results (k6 or Apache JMeter)
- Sentry error tracking integration
- CloudWatch or Datadog monitoring dashboards
- Security audit report (OWASP top 10)
- Full ownership and IP transfer
What we ship in this practice.
E-commerce order API for a direct-to-consumer brand
Built a RESTful API handling 10,000 orders per day with 50ms average response time. Integrated with Stripe for payments and a warehouse management system for fulfillment. Reduced order processing errors by 40%. Tech stack: Node.js, Express, PostgreSQL, Redis, Stripe, AWS Lambda.
Healthcare FHIR API for a telehealth startup
Designed a HIPAA-compliant FHIR R4 API enabling 500+ providers to access patient records, schedule appointments, and submit claims. Decreased data retrieval time by 60% compared to the previous legacy system. Tech stack: Python, Django, FHIR server, PostgreSQL, AWS, Twilio.
Payment processing API for a fintech company
Developed a PCI-DSS compliant REST API that processes $50M in transactions monthly across multiple gateways (Stripe, Square, PayPal). Implemented idempotency keys and automated refunds. Reduced manual reconciliation by 80%. Tech stack: Go, MySQL, Redis, Stripe, Square, AWS.
Real-time tracking API for a logistics firm
Created a WebSocket-enhanced REST API providing live GPS tracking for 2,000+ vehicles with 99.9% uptime. Geofence alerts and route optimization saved 15% on fuel costs. Tech stack: Node.js, Express, WebSockets, MongoDB, Google Maps API, AWS IoT Core.
SaaS integrations API for a CRM platform
Built a unified REST API that connects 15 external SaaS tools (Slack, Salesforce, HubSpot, Mailchimp, etc.) using OAuth2. Saved the client 30% in development time by providing pre-built connectors and retry logic. Tech stack: NestJS, PostgreSQL, Redis, OAuth2, RabbitMQ.
IoT device management API for a smart building company
Developed a REST API for managing 10,000+ sensors across commercial buildings. Device registration, telemetry ingestion, and rule-based alerts improved energy efficiency by 20%. Tech stack: Python, FastAPI, MQTT, InfluxDB, Grafana, AWS Greengrass.
Why teams hire us.
Fixed price, not hourly
Every REST API project gets a fixed quote in the Roadmap phase (week 2). No hourly billing means you know your budget from day one, with zero surprises.
Senior engineers only
Our team of 30+ senior engineers averages 10 years of experience. We skip junior hires, so you get production-ready APIs from the start.
OpenAPI-first approach
We design APIs using OpenAPI 3.0 before writing code. This ensures consistent documentation and client SDK generation for faster integration.
Built-in security and compliance
Every API includes OWASP top 10 checks, rate limiting, and authentication (OAuth2, JWT). We handle HIPAA, PCI-DSS, and SOC 2 compliance for regulated industries.
8-12 week delivery
We ship production-ready APIs in 8 to 12 weeks. Our streamlined process from Roadmap to Release keeps the timeline tight and predictable.
Full code ownership
You own all source code and IP. We never lock you in. Our delivery includes full documentation and deployment scripts so your team can manage the API post-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.