Leading API Integration Development DevelopersIntegration Development
We connect your apps with secure, scalable APIs. Ship faster with fixed pricing and senior-only teams.
IRPR builds custom API integrations for companies that need data to flow between SaaS tools, legacy systems, and third-party platforms. We use Node.js, Python, GraphQL, and REST to build reliable bridges that handle thousands of requests per second.
Every integration ships in 8-12 weeks with full documentation and monitoring. Pricing is fixed from $80K to $250K depending on complexity. We comply with HIPAA, PCI-DSS, and SOC 2 for regulated industries.
CTOs hire us when their internal team is stretched too thin. Product managers hire us to launch new integrations faster than the competitor. Compliance officers hire us for secure data pipelines that pass audits.
Types of software we ship.
REST API development
Build stateless RESTful APIs with JWT auth, rate limiting, and OpenAPI specs. Integrates with Postman for testing.
GraphQL API development
Build flexible GraphQL APIs that let frontend teams query exactly what they need. Works with Apollo and Hasura.
Third-party API integration
Connect your app to Salesforce, Stripe, HubSpot, or any public API. Handles OAuth, webhooks, and rate limits.
Enterprise system integration
Integrate SAP, Oracle, or legacy .NET systems with modern microservices. Uses message queues like RabbitMQ.
Payment API integration
Securely connect to Stripe, Braintree, or Adyen for payment processing. Includes PCI-DSS compliance and tokenization.
CRM API integration
Sync data between your app and Salesforce, HubSpot, or Zoho in real time. Uses webhooks and batch sync.
Healthcare API integration (FHIR)
Integrate with EHR systems using HL7 FHIR standards. Handles HIPAA compliance and patient data security.
Ecommerce API integration
Connect Shopify, Magento, or WooCommerce with your ERP, 3PL, or accounting software. Supports real-time inventory sync.
We build for every business type.
Healthcare
Fintech
Ecommerce & Retail
SaaS & Technology
Logistics & Manufacturing
Why Leading API Integration Development Developers Matter
APIs are the backbone of modern software, and poor integration causes data loss, latency, and angry users.
IRPR has built over 200 API integrations across healthcare, fintech, and ecommerce. Our APIs handle 10,000 requests per minute with an average response time under 200ms. We document every endpoint with OpenAPI 3.0 and include health checks.
Our clients see a 40% reduction in manual data entry after integration. One logistics client connected their WMS to 3 carriers in 6 weeks using our fixed-price model. No scope creep, no surprise invoices.
IRPR vs Generic Dev Shops
Most agencies over-promise and under-deliver on API integrations. Here is how IRPR is different.
Generic dev shops often use junior developers or outsource work, leading to brittle integrations that break when an API version changes. They bill hourly and have no compliance expertise.
IRPR assigns senior engineers with 8+ years of experience who have built integrations for Stripe, Salesforce, and Twilio. We give you a fixed price after a 2-week Roadmap phase. No hourly billing.
- Junior developers on the project
- Hourly billing with no cap
- No compliance expertise
- No automated testing
- Brittle code that breaks
- No documentation provided
- Senior engineers only (8+ years)
- Fixed price after Roadmap phase
- HIPAA, PCI-DSS, SOC 2 compliant
- CI/CD with automated test suite
- Retry logic, rate limiting, error handling
- OpenAPI documentation and Postman collections
Our API Integration Development Process
We follow a four-phase process that turns your idea into a working integration in 8-12 weeks.
Every project starts with a 2-week Roadmap phase where we define endpoints, data mapping, and error handling. You get a fixed price and timeline before any development begins. No surprises.
Development uses TDD with Jest and Mocha. We deploy to production on AWS ECS with auto-scaling and CloudWatch monitoring. Every integration includes a Postman collection and 1 year of support.
What Ships With Every Integration
Every API integration project includes these deliverables by default. No hidden fees.
You own everything we build. No ongoing license fees. No vendor lock-in. Just production-ready code in your repository.
- Source code in your GitHub/GitLab repo
- CI/CD pipeline on GitHub Actions or GitLab CI
- OpenAPI 3.0 documentation
- Postman collection with example requests
- Sentry error tracking and alerting
- Datadog or CloudWatch dashboards
- Load testing report (1000 req/s target)
- Security audit report for your compliance needs
- 1 year of bug fixes and maintenance
- Video walkthrough for your developers
What we ship in this practice.
Health Data Dashboard Integration
Connected a telehealth platform to 3 EHR systems using FHIR APIs. Reduced manual patient data entry by 12 hours per week. Tech stack: Python, FastAPI, FHIR R4, PostgreSQL.
Payment Gateway for Fintech App
Integrated Stripe Connect with a lending platform to handle $50M in monthly transactions. Achieved PCI-DSS Level 1 compliance. Tech stack: Node.js, Express, Stripe API, MongoDB.
Real-Time Inventory Sync for Ecommerce
Synchronized inventory between Shopify and a 3PL warehouse using webhooks. Cut stockouts by 30%. Tech stack: Ruby on Rails, Shopify API, Sidekiq, Redis.
CRM Integration for Sales Team
Built a two-way sync between Salesforce and a custom CRM. Reduced duplicate data entry by 8 hours per week per rep. Tech stack: Java, Spring Boot, Salesforce REST API, Kafka.
Logistics Tracking API
Integrated a fleet management system with 3 carrier APIs (FedEx, UPS, USPS) for real-time tracking. Improved delivery ETAs from +/- 4 hours to +/- 30 minutes. Tech stack: Go, gRPC, Redis, AWS Lambda.
Media Content Syndication API
Built a GraphQL API to syndicate video content to 5 streaming platforms. Reduced manual upload time by 90%. Tech stack: Node.js, Apollo Server, Amazon S3, CloudFront.
Why teams hire us.
Fixed price, not hourly
Every integration gets a fixed quote after the 2-week Roadmap phase. No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Our team averages 10 years of experience. No juniors. No outsourced work. Every engineer has built production APIs at scale.
Compliance built in
We build to HIPAA, PCI-DSS, and SOC 2 standards from day one. We handle BAAs and PCI scans so you can pass audits easily.
You own the code
Every line of code goes into your repository. No license fees. No vendor lock-in. You can deploy, modify, or resell the integration.
8-12 week delivery
Most integrations ship in 8-12 weeks. We have a 98% on-time delivery rate across 200+ products. You get a working integration fast.
Post-launch support included
Every project includes 1 year of bug fixes and monitoring. We do not disappear after launch. You get a dedicated project manager.
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.