API Integration Development TeamDevelopment Team
We build custom API integrations that connect your SaaS tools and legacy systems. Ship in 8-12 weeks with fixed pricing and full source code ownership.
IRPR builds custom API integrations using Node.js, Python, REST, GraphQL, and event-driven architectures. We handle authentication (OAuth 2.0, JWT), data mapping, error handling, and real-time sync via WebSockets.
Every integration project ships with source code in your repository, CI/CD pipeline, monitoring, and documentation. Typical timeline is 12 weeks. Pricing ranges from $80K to $250K depending on complexity. We comply with HIPAA, PCI-DSS, and SOC 2.
CTOs hire us to unify their CRM and ERP data. Product managers use us to automate workflows across 5+ tools. Compliance officers trust our audit trails. Engineering leads scale integrations without adding headcount.
Types of software we ship.
CRM to CRM Integration
Sync contacts, deals, and activities between Salesforce, HubSpot, and Zoho. Uses OAuth 2.0 and bulk APIs for real-time bidirectional sync.
ERP Integration
Connect NetSuite, SAP Business One, or Microsoft Dynamics to your e-commerce platform. Handles inventory, orders, and invoices via SOAP and REST.
E-Commerce Platform Integration
Link Shopify, Magento, or WooCommerce to payment gateways, ERPs, and 3PLs. Webhooks ensure order fulfillment updates within seconds.
Payment Gateway Integration
Integrate Stripe, Braintree, or Adyen with your app for subscriptions and one-time payments. Includes webhook handling, idempotency, and PCI-DSS compliance.
Marketing Automation Integration
Sync leads and campaigns between HubSpot, Marketo, and Mailchimp. Supports custom field mapping and deduplication using OAuth and API keys.
Healthcare Data Integration
Exchange patient data using FHIR and HL7 v2. Connect Epic, Cerner, and Athenahealth while maintaining HIPAA compliance and audit logs.
Real-Time Data Sync (WebSockets)
Build live dashboards and collaboration tools using WebSockets and Server-Sent Events. Integrates with Redis, Postgres, and Firebase for low-latency updates.
API Gateway & Aggregator
Create a single API gateway (Kong, Apigee) that aggregates data from 10+ microservices. Includes rate limiting, caching, and OAuth token exchange.
We build for every business type.
E-commerce Platforms
SaaS Platforms
Healthcare Systems
Fintech & Payments
Legacy & On-Premise Systems
What an API Integration Development Team Delivers
Integration projects are complex. You need a team that understands authentication, data mapping, error handling, and monitoring.
Our team has delivered over 200 integration projects across 50 countries. We use a standard stack of Node.js, Python, and PostgreSQL, and we adjust to your existing architecture. Every project includes a detailed technical design document in week 2.
We write idempotent API calls, handle rate limits, and manage retries with exponential backoff. Your data stays consistent and your integrations never lose a message. We build for 99.9% uptime from day one.
Why Generic Dev Shops Fail at API Integration
Most development teams underestimate the complexity of building production-grade integrations. They skip error handling, security, and monitoring.
Integrations touch your most critical data. A mistake can duplicate records, expose PII, or corrupt your database. Generic shops build with a 'make it work' mindset and leave you with fragile connectors.
IRPR treats integrations like infrastructure. We design for failure, test for edge cases, and ship monitors that alert you before a problem reaches customers. Your data stays clean and your team stays productive.
- No dedicated integration architect
- Hourly billing with no fixed scope
- No error handling for API rate limits
- No automated retry or rollback logic
- No monitoring or alerting
- Code ownership unclear
- Senior integration engineers only
- Fixed price after 2-week Roadmap
- Idempotent endpoints with retry policies
- Rollback scripts and data validation
- Prometheus + Sentry monitoring included
- Full source code in your repository
The 4-Phase Process for API Integration Development
Our process is designed to deliver working integrations in 8-12 weeks. You know the price and the plan before we write code.
Each phase has clear deliverables. You approve decisions at the end of every phase. We don't build features that you don't need.
We use a fixed-price contract from the start. The Roadmap phase costs a fixed fee and the price for the full build is locked before we begin development.
What Ships with Every API Integration
You own everything. We don't charge royalties or license fees. Every project includes these deliverables by default.
All code is written in a private GitHub repository that you control. We follow industry-standard CI/CD pipelines and containerization with Docker.
Documentation includes API endpoints with request/response examples, sequence diagrams, and a runbook for operations. Your team can pick up the project immediately.
- Source code in your private GitHub repository
- CI/CD pipeline on GitHub Actions or GitLab CI
- Docker containers for local and production builds
- API documentation with Swagger/OpenAPI 3.0
- Error tracking via Sentry or Datadog
- Health check endpoints and Prometheus metrics
- Integration tests covering at least 80% of endpoints
- Runbook with common failure scenarios and recovery steps
- 30-day post-launch support and bug fixes
- One-hour knowledge transfer session for your team
What we ship in this practice.
Salesforce-HubSpot Bidirectional Sync
A B2B SaaS company needed to keep contacts and deals in sync between Salesforce and HubSpot. IRPR built a Node.js service with OAuth 2.0 and webhooks that reduced manual data entry by 10 hours per week. The sync handles field mappings and deduplication automatically.
Shopify to NetSuite Order Integration
An apparel brand connected their Shopify store to NetSuite ERP. IRPR built a RESTful integration that pushes orders, inventory, and invoices in real time. Order errors dropped from 15 per day to zero. The project included PCI-DSS compliant payment data handling.
Epic FHIR Interface for Telehealth
A digital health startup needed to exchange patient data with Epic using FHIR R4. IRPR implemented SMART on FHIR authentication and OAuth 2.0. The integration processes 50,000 patient records per day with HIPAA-compliant audit logs.
Plaid to Internal Ledger for Fintech
A fintech company wanted to pull account transactions from Plaid and sync them to their internal ledger. IRPR built a Python service with Plaid Link and webhooks. The integration handles 10,000 transactions per minute and supports idempotent retries for zero data loss.
Magento to 3PL Warehouse Integration
A retailer needed Magento orders sent to two 3PL warehouses in real time. IRPR built a Go microservice that transforms order data and retries on failure. Shipping delays dropped by 30% and inventory counts are updated every 5 minutes.
HubSpot to Marketo Lead Sync for Agency
A marketing agency needed to sync leads between HubSpot and Marketo without duplication. IRPR built a Node.js worker that maps custom fields and deduplicates using email and phone. The integration handles 5,000 leads daily and reduced manual work by 8 hours per week.
Why teams hire us.
Fixed price, not hourly
Every integration project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Full source code ownership
You own every line of code we write. We put it in your GitHub repository from day one. There are no proprietary licenses or recurring royalties.
Compliance built in
We handle HIPAA, PCI-DSS, and SOC 2 integrations. Our engineers know how to encrypt data in transit and at rest, write audit logs, and manage tokens securely.
8-12 week delivery
Our process is designed for speed. Most integrations ship in 12 weeks or less. We have delivered 200+ products with a 98% on-time rate.
Senior engineers only
Every IRPR engineer has 7+ years of experience. We don't outsource to juniors. You work directly with the team that builds your integration.
30-day post-launch support
After deployment, we provide 30 days of bug fixes and operational support. We monitor your integration and hand over a runbook for your team.
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.