Experienced REST API Development VendorREST API
We build production-grade REST APIs that scale. 200+ APIs shipped to 50+ countries with 98% on-time delivery.
IRPR is an experienced REST API development vendor. We design and build RESTful APIs using Node.js (Express, Fastify), Python (FastAPI, Django REST), and Go. Every API integrates with PostgreSQL, Redis, and Docker for containerized deployment.
We ship production-ready REST APIs in 8-12 weeks. Pricing is fixed at $80K-$250K per project. All APIs meet compliance standards including HIPAA, PCI-DSS, and SOC 2. You get full source code ownership and CI/CD pipelines.
Our clients include CTOs who need a scalable backend for their SaaS platform, product managers integrating third-party services via REST, startup founders building an MVP with a clean API layer, and enterprise architects migrating legacy systems to modern REST endpoints.
Types of software we ship.
Ecommerce Checkout API
Handles cart, payments, and shipping. Integrates with Stripe, Shopify, and custom ERP systems. Supports 10,000+ requests per second.
Payment Processing API
Manages transactions, refunds, and recurring billing. Uses Stripe Connect, Braintree, or Adyen. PCI-DSS Level 1 compliant.
User Authentication API
OAuth 2.0, JWT, and SAML. Supports SSO with Okta, Auth0, or Azure AD. Handles 1M+ concurrent sessions.
CRM Integration API
Syncs contacts, deals, and activities with Salesforce, HubSpot, or Zoho. Real-time webhooks and batch sync.
Real-Time Data Sync API
WebSocket and SSE endpoints for live updates. Used for collaboration tools, dashboards, and IoT. Latency under 50ms.
IoT Device Management API
REST endpoints for device registration, telemetry, and commands. Works with AWS IoT Core, MQTT brokers, and edge gateways.
Content Delivery API (CMS)
Headless CMS API for content authors. Supports Strapi, Contentful, or custom Node.js. Image optimization and CDN caching.
Analytics Dashboard API
Aggregates event data via REST endpoints. Built on ClickHouse or TimescaleDB. Sub-second query times for 100M+ rows.
We build for every business type.
Ecommerce
Fintech
Healthcare
SaaS
Logistics
Why Choose an Experienced REST API Development Vendor
Your API is the backbone of every integration. Get it right the first time.
IRPR has shipped over 200 REST APIs across 50 countries. Our APIs handle 10M+ requests per day with 99.9% uptime. We use proven patterns: versioning, pagination, caching, and error standardization.
Every API we build includes comprehensive documentation (OpenAPI 3.0), automated tests (95%+ coverage), and monitoring (Datadog, Sentry). You get a production-ready service, not a prototype.
Generic Dev Shop vs. IRPR: The REST API Difference
Not all vendors deliver APIs that scale. Here's what sets IRPR apart.
Many dev shops build APIs that work today but break tomorrow. They skip load testing, ignore security, and hand you undocumented code. You end up with technical debt and integration nightmares.
IRPR builds APIs that are secure, scalable, and documented from day one. We follow a structured Roadmap phase (2 weeks) that defines endpoints, data models, and contracts before any code is written.
- No upfront API contract or documentation
- Unclear pricing – hourly billing with scope creep
- No load testing or performance benchmarks
- Weak authentication – basic JWT without refresh tokens
- No CI/CD – manual deployments
- No post-launch monitoring or support
- OpenAPI 3.0 spec before development starts
- Fixed price from Roadmap phase – no surprises
- Load testing with k6 – 10,000 concurrent users
- OAuth 2.0 / Auth0 with rate limiting and API keys
- CI/CD pipeline on GitHub Actions + Docker
- Sentry + Datadog monitoring with SLA responses
Our REST API Development Process
A structured 4-phase approach that delivers a production-ready API in 8-12 weeks.
Every project starts with a 2-week Roadmap phase. We define endpoints, data models, authentication flows, and integration points. You get a fixed quote and a clear timeline before any code is written.
The Product phase builds the API iteratively. Each sprint delivers working endpoints with tests and documentation. The Release phase handles deployment, monitoring setup, and a 30-day warranty.
What Ships With Every REST API Project
You get more than code. Every deliverable is designed to keep your team running.
We don't just hand over a repository. Every API comes with a complete operational package: monitoring, CI/CD, documentation, and a runbook. Your team can deploy and maintain the API from day one.
Our checklist ensures nothing is forgotten. You get source code, infrastructure-as-code, and a security audit report. Everything is yours to own and modify.
- Source code in your private GitHub/GitLab repo
- OpenAPI 3.0 specification (YAML/JSON)
- CI/CD pipeline using GitHub Actions or GitLab CI
- Docker Compose for local development
- Postman collection with example requests
- Load test scripts (k6) for performance validation
- Sentry error tracking and Datadog monitoring
- Security audit report (OWASP Top 10 check)
- Deployment runbook and environment variables template
- 30-day post-launch support with SLA
What we ship in this practice.
Ecommerce Checkout API for a DTC Brand
Built a REST API handling cart, payment, and shipping for a direct-to-consumer brand. Integrated Stripe and ShipStation. Reduced checkout time by 40% and increased conversion by 15%. Tech stack: Node.js, Express, PostgreSQL, Redis.
Payment Processing API for a Fintech Startup
Developed a PCI-DSS Level 1 compliant REST API for payment processing with Stripe Connect. Handles 50,000 transactions per day with sub-200ms latency. Tech stack: Python, FastAPI, PostgreSQL, AWS ECS.
Patient Data API for a Telehealth Platform
Created a HIPAA-compliant REST API using FHIR standards. Synchronizes patient records, appointments, and prescriptions across clinics. Reduced manual data entry by 8 hours per week per clinic. Tech stack: Python, Django REST, PostgreSQL, Auth0.
CRM Integration API for a SaaS Company
Built a REST API that syncs contacts, deals, and activities between a custom SaaS platform and Salesforce. Supports real-time webhooks and batch sync. Cut integration development time by 60%. Tech stack: Node.js, Express, Salesforce REST API, BullMQ.
Real-Time Fleet Tracking API for Logistics
Developed a REST API with WebSocket endpoints for real-time GPS tracking of 10,000+ vehicles. Integrated with Google Maps and custom routing engine. Reduced delivery delays by 25%. Tech stack: Go, PostgreSQL, Redis Pub/Sub, AWS IoT Core.
Content Delivery API for a Media Platform
Built a headless CMS REST API serving 5 million monthly users. Image optimization with Cloudinary and CDN caching reduced page load time by 50%. Tech stack: Node.js, Express, Strapi, PostgreSQL, CloudFront.
Why teams hire us.
Fixed price, not hourly
Every REST API project gets a fixed quote after the 2-week Roadmap phase. No hourly billing, no scope creep charges. You know the cost before we write a line of code.
Senior engineers only
Our team consists of senior engineers with 10+ years of experience. No junior developers. Each engineer has shipped at least 20 production REST APIs.
200+ APIs shipped
We have delivered over 200 REST APIs across 50+ countries. Our APIs handle billions of requests per year with 99.9% uptime. This experience means fewer bugs and faster delivery.
12-week delivery guarantee
Most projects ship in 8-12 weeks. Our structured process and dedicated teams ensure on-time delivery. 98% of projects meet or beat the original timeline.
Full code ownership
You own all source code, documentation, and infrastructure code. No licensing fees, no vendor lock-in. You can deploy, modify, and transfer the API at any time.
Compliance-ready out of the box
We build APIs to meet HIPAA, PCI-DSS, SOC 2, and GDPR requirements. Our standard practices include encryption at rest and in transit, audit logging, and access controls.
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.