Expert API Integration Development ServicesAPI Integration
Connect your systems with secure, scalable APIs. We ship production-ready integrations in 8-12 weeks.
IRPR builds expert API integration development services that connect your SaaS products, legacy systems, and third-party tools. We use REST, GraphQL, SOAP, gRPC, and WebSocket protocols with Node.js, Python, and Go backends.
Every integration ships in 8-12 weeks with a fixed price between $80K and $250K. We handle HIPAA, PCI-DSS, and SOC 2 compliance. Your code is owned by you from day one.
CTOs hire us to unify their microservices architecture. Product managers need us to connect Stripe, Salesforce, and HubSpot. Engineering leads bring us in to replace brittle point-to-point integrations with a central API gateway.
Types of software we ship.
REST API Integration
Build stateless RESTful endpoints using Express.js or FastAPI. Supports OAuth 2.0, JWT, and rate limiting out of the box.
GraphQL Gateway
Unify multiple data sources with a single GraphQL endpoint using Apollo Federation. Reduces frontend calls by 60-80%.
SOAP to REST Migration
Wrap legacy SOAP services in modern REST APIs. Used by healthcare and finance clients to modernize without downtime.
Third-Party API Connectors
Pre-built connectors for Stripe, Salesforce, HubSpot, Shopify, and 50+ other platforms. Custom mapping and transformation included.
Internal API Portal
A developer portal with Swagger/OpenAPI docs, API keys, usage analytics, and rate limiting. Used by teams of 10-100 engineers.
Event-Driven Integration
Use Apache Kafka or RabbitMQ to decouple services. Handles 10,000+ events per second with exactly-once delivery.
API Security Audit
Penetration test and harden your APIs against OWASP Top 10 threats. Includes rate limiting, input validation, and encryption at rest.
Real-Time Data Sync
Sync data between Salesforce, Shopify, and your ERP in real time using WebSockets or server-sent events. Latency under 100ms.
We build for every business type.
SaaS companies
Healthcare
Fintech
Ecommerce
Enterprise
Why Expert API Integration Development Services Matter
Poorly integrated APIs cause data silos, security holes, and slow development cycles.
IRPR has shipped over 200 integrations across 50 countries. Our expert API integration development services reduce data sync errors by 90% and cut integration time from months to weeks. We build every connector with retry logic, circuit breakers, and comprehensive logging.
Each integration is designed to handle 10x your current traffic without breaking. We use load testing with k6 and monitoring with Datadog to ensure 99.9% uptime. Your team gets full source code and CI/CD pipelines for ongoing maintenance.
What Sets IRPR Apart for API Integration
Generic dev shops build brittle point-to-point integrations. IRPR builds scalable, maintainable API layers.
Most agencies use a single developer who disappears after delivery. IRPR assigns a senior engineer and an architect who write tests, documentation, and deployment scripts before you sign off.
We also include a 30-day warranty on every integration. If something breaks, we fix it within 24 hours. No extra charges, no excuses.
- No automated tests for API endpoints
- No rate limiting or throttling
- No monitoring or alerting
- No documentation (Swagger/OpenAPI)
- No CI/CD pipeline for deployments
- One developer, single point of failure
- 100% test coverage for all endpoints
- Rate limiting with Redis and token bucket
- Datadog monitoring with PagerDuty alerts
- Auto-generated Swagger/OpenAPI docs
- GitHub Actions CI/CD for staging and prod
- Senior engineer + architect, two-person team
Our API Integration Process
We follow a 4-phase process that starts with a detailed roadmap and ends with a production-ready integration.
Every project begins with a 2-week Roadmap phase where we map your existing systems, define endpoints, and write a fixed-price contract. No surprises.
After the Roadmap, we build the integration in 6-10 weeks. You get weekly demos, a staging environment, and full access to our GitHub repository.
What Ships with Every API Integration
Every integration includes everything you need to run, monitor, and extend the system yourself.
IRPR believes in full ownership. You get the source code, infrastructure, and documentation from day one. No black boxes, no vendor lock-in.
Our checklist ensures nothing is forgotten. Every integration ships with the same high standard, whether you are in healthcare, fintech, or ecommerce.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Auto-generated Swagger/OpenAPI documentation
- Unit tests with 90%+ coverage
- Load test scripts with k6
- Docker Compose for local development
- Terraform scripts for cloud infrastructure
- Datadog dashboards and alerts
- Postman collection for manual testing
- 30-day warranty with 24-hour SLA
What we ship in this practice.
Stripe Payment Gateway Integration
Built a custom Stripe connector for a SaaS platform processing $2M/month. Handled webhooks, idempotency, and refunds. Reduced failed payments by 40%. Tech stack: Node.js, Stripe API, PostgreSQL, Redis.
Salesforce to Shopify Sync
Synced customer data and order history between Salesforce and Shopify for a D2C brand. Eliminated manual data entry for 5 staff members. Tech stack: Python, Salesforce REST API, Shopify GraphQL, Airflow.
HIPAA-Compliant EHR Integration
Connected a telemedicine platform with Epic EHR using FHIR APIs. Achieved HIPAA compliance with encryption at rest and in transit. Used by 200+ clinics. Tech stack: Go, FHIR R4, AWS KMS, Terraform.
Real-Time Inventory Sync for 3PL
Built a WebSocket-based inventory sync between a 3PL warehouse and 10 ecommerce stores. Latency under 50ms. Reduced overselling by 99%. Tech stack: Node.js, WebSocket, Redis Pub/Sub, Shopify API.
KYC/AML API Integration for Fintech
Integrated with Onfido and ComplyAdvantage for identity verification and AML screening. Processed 10,000 verifications per day with 98% accuracy. Tech stack: Python, Onfido API, ComplyAdvantage API, MongoDB.
Multi-Cloud API Gateway
Designed a central API gateway for a SaaS company with services on AWS, GCP, and Azure. Used Kong and Envoy for routing. Reduced latency by 60%. Tech stack: Kong, Envoy, Docker, Kubernetes, Prometheus.
Why teams hire us.
Fixed price, not hourly
Every integration project gets a fixed quote during the Roadmap phase (week 2). No hourly billing means no surprise invoices. You know the cost before we write a line of code.
Senior engineers only
Every project is staffed with engineers who have 8+ years of experience. No juniors, no offshore teams. Your integration is built by someone who has done it 20+ times before.
Full code ownership
You own every line of code from day one. There is no licensing fee, no proprietary framework, no vendor lock-in. We deliver the source code in your GitHub repo on day one.
HIPAA and PCI-DSS compliance
IRPR has built integrations for healthcare and fintech clients since 2015. We know how to handle PHI, PII, and cardholder data. Every integration is audited for compliance before release.
30-day warranty
After deployment, we monitor the integration for 30 days with a 24-hour SLA. If something breaks, we fix it. No extra charges, no questions asked.
Async-first, global team
Our team works across 12 time zones. We communicate via Slack and Notion, with daily async standups. You get overlap hours with your PM and engineer, no matter where you are.
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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