Professional API Integration Development AgencyAPI Integration
We build custom API integrations that connect your apps and automate workflows. Ship in 8-12 weeks with a fixed price.
IRPR builds custom API integrations that connect your SaaS tools, legacy systems, and third-party platforms. We use Node.js, Python, and cloud-native architectures on AWS or Azure to create reliable data pipelines.
Every project ships with source code in your repo, CI/CD pipelines, and monitoring. Typical timelines are 8-12 weeks with fixed pricing from $80K to $250K. We handle HIPAA, PCI-DSS, and SOC 2 compliance out of the box.
CTOs at SaaS companies who need to integrate with Salesforce or HubSpot. Engineering leads at healthcare startups building HIPAA-compliant data exchanges. Product managers at ecommerce brands connecting Shopify to their ERP. Operations directors at logistics firms automating warehouse APIs.
Types of software we ship.
SaaS-to-SaaS Integration
Connect two cloud apps like Salesforce and HubSpot. Uses OAuth 2.0 and webhooks for real-time sync.
Ecommerce Integration
Link Shopify, Magento, or BigCommerce to ERP and WMS systems. Automates order and inventory flows.
Payment Gateway Integration
Integrate Stripe, PayPal, or Braintree into your checkout. Handles PCI-DSS compliance and tokenization.
CRM Integration
Sync data between Salesforce, HubSpot, or Zoho and your internal tools. Uses REST and GraphQL APIs.
Data Warehouse Integration
Push data from apps into Snowflake, BigQuery, or Redshift. Uses ETL pipelines with Apache Airflow.
Legacy System Integration
Connect mainframes or on-prem databases to modern cloud services. Uses MuleSoft or custom adapters.
API Gateway Development
Build a unified API gateway using Kong or AWS API Gateway. Adds rate limiting, auth, and logging.
Real-time Data Sync
Implement WebSocket or Kafka streams for live data sync. Used for dashboards and notifications.
We build for every business type.
SaaS companies
Healthcare
Ecommerce
Fintech
Logistics
API Integration Expertise by the Numbers
Our track record shows consistent delivery of complex integrations.
IRPR has shipped over 200 products, many of which are API integrations for SaaS, healthcare, and fintech clients. Our engineers have built integrations that handle millions of API calls per day with 99.9% uptime.
We work across 50+ countries and maintain a 98% on-time delivery rate. Every integration project is scoped in the Roadmap phase (week 2) and delivered with full documentation.
Generic Dev Shop vs IRPR
Most agencies overpromise and underdeliver on integrations. We do the opposite.
Generic shops often start coding without a clear architecture, leading to brittle integrations that break when APIs change. They charge by the hour, so scope creep is their business model.
IRPR uses a fixed-price Roadmap phase to define every endpoint, data model, and error handler before a single line of code is written. We ship with automated tests and monitoring.
- Hourly billing with no cap
- No compliance expertise
- No CI/CD or monitoring
- Code ownership unclear
- No dedicated project manager
- Scope creep is expected
- Fixed price from $80K
- HIPAA, PCI-DSS, SOC 2 built in
- CI/CD, Sentry, Datadog included
- Full code ownership
- Senior engineers only
- Roadmap phase locks scope
Our API Integration Process
We follow a four-phase process that guarantees clarity and speed.
Every integration starts with a Discovery week where we map your systems, endpoints, and auth flows. Then we produce a Roadmap with wireframes, data schemas, and a fixed price.
Development happens in 2-week sprints with daily standups. We deploy to staging, run integration tests, and hand over production code with full documentation.
What Ships With Every Integration
You get more than just working code. Every deliverable is production-ready.
We don't throw code over the wall. Every integration includes infrastructure, monitoring, and documentation so your team can operate it from day one.
Our standard delivery includes automated tests, error tracking, and a CI/CD pipeline. You own everything.
- Source code in your repo (GitHub or GitLab)
- CI/CD pipeline on GitHub Actions
- API documentation (OpenAPI/Swagger)
- Error tracking with Sentry
- Monitoring with Datadog dashboards
- Automated integration tests (Jest, Postman)
- Rate limiting and retry logic
- OAuth 2.0 or API key auth setup
- Deployment scripts for AWS or Azure
- Post-launch support for 30 days
What we ship in this practice.
Salesforce-HubSpot Sync
Built a bidirectional sync between Salesforce and HubSpot for a B2B SaaS company. Reduced manual data entry by 15 hours per week. Used Node.js, AWS Lambda, and OAuth 2.0.
HIPAA-Compliant EHR Integration
Connected a telemedicine platform to Epic EHR for a healthcare startup. Handled 50,000 patient records monthly with HL7 FHIR and achieved HIPAA compliance. Used Python and AWS HealthLake.
Shopify-ERP Order Sync
Integrated Shopify with NetSuite ERP for an ecommerce brand. Automated order creation and inventory updates, cutting processing time from 2 hours to 10 minutes daily. Used Node.js and Stripe.
Stripe Payment Gateway Integration
Built a custom payment gateway integration for a fintech platform supporting 100+ currencies. Achieved PCI-DSS Level 1 compliance. Used Python, Stripe API, and Redis for idempotency.
Real-Time Carrier Tracking API
Developed a WebSocket-based tracking system for a logistics firm. Integrated with FedEx, UPS, and USPS APIs to provide live shipment updates. Reduced customer support calls by 30%. Used Node.js and Kafka.
Snowflake Data Pipeline
Created an ETL pipeline that ingests data from 12 SaaS tools into Snowflake for a media analytics company. Processes 5 million records daily with 99.9% reliability. Used Apache Airflow and dbt.
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.
98% on-time delivery
We have delivered over 200 projects with a 98% on-time rate. Our Roadmap phase ensures every endpoint and data flow is scoped before development starts.
Full code ownership
You own all source code, documentation, and infrastructure scripts from day one. There are no licensing fees or vendor lock-in.
Compliance built in
We integrate HIPAA, PCI-DSS, and SOC 2 controls into every integration. Our engineers have built compliant systems for healthcare and fintech clients.
Senior engineers only
Every project is staffed with engineers who have 8+ years of experience. No junior developers, no offshore outsourcing.
8-12 week delivery
Most integrations are built and deployed in 8 to 12 weeks. We use proven patterns and reusable modules to accelerate development.
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.