Premium API Integration Development AgencyAPI Integration
We build custom API integrations that connect your software stack. 200+ products shipped with 98% on-time delivery.
IRPR builds premium API integrations using REST, GraphQL, and Webhooks powered by Node.js, Python, and AWS Lambda. We connect any two systems securely with automated retry logic, error handling, and real-time monitoring.
Each integration ships in 8 to 12 weeks at a fixed price between $80K and $250K. Every project meets relevant compliance standards including HIPAA, PCI-DSS, and SOC 2 depending on the data handled.
CTOs hire us to unify legacy systems with modern SaaS tools. Product managers need reliable third-party API connections for their platforms. Operations heads automate workflows between CRMs, ERPs, and payment gateways. Founders build MVPs that depend on multiple external APIs working together from day one.
Types of software we ship.
Payment Gateway Integration
Securely connect Stripe, Braintree, or Adyen to your platform with idempotency and webhook retries.
CRM Sync Integration
Two-way sync between Salesforce, HubSpot, or Zoho and your internal apps using OAuth 2.0 and delta tracking.
ETL Data Pipeline
Extract, transform, and load data from APIs into your data warehouse (Snowflake, BigQuery) with scheduled Airflow jobs.
Real-Time Data Sync
Keep inventory, pricing, and order data consistent across Shopify, QuickBooks, and warehouse using Pub/Sub and WebSockets.
Legacy System API Wrapper
Wrap mainframe or SOAP APIs in modern RESTful endpoints with caching layers and circuit breakers using Express.
Social Media API Integration
Post to Facebook, Twitter, LinkedIn and pull analytics via their Graph APIs with rate limiting and token refresh.
Email Marketing Automation Integration
Connect Mailchimp, SendGrid, or ActiveCampaign to your app with segmentation triggers and bounce handling.
IoT Device API Integration
Ingest telemetry from MQTT or HTTP-based devices into your cloud backend (AWS IoT Core, Azure IoT Hub) with scalable processing.
We build for every business type.
Fintech
Healthcare
Ecommerce
SaaS
Logistics
Why premium API integration matters for your business
Unreliable integrations cause data loss, failed transactions, and angry customers.
A single broken API sync can cost an enterprise $500K per hour in lost revenue. IRPR builds each integration with automated retries, dead-letter queues, and real-time alerting so your data flows consistently.
We have delivered 200+ API integrations across fintech, healthcare, and ecommerce. Every connection is tested at 200% of expected load to guarantee uptime above 99.9%.
Generic developers vs. IRPR
Most agencies ship integrations with no error handling, no monitoring, and no documentation.
A typical developer builds the happy path and leaves. When the partner API changes or a network blip occurs, your integration breaks silently. Your ops team discovers it when customers complain.
IRPR treats every integration as a production-critical system. We add all the safety features that keep data flowing even when things go wrong. Our clients average 99.9% integration uptime.
- No error handling or retry logic
- No monitoring dashboards
- No API documentation
- No uptime SLA
- Hourly billing with scope creep
- Single developer knows the code
- Full error handling with exponential backoff
- Real-time monitoring via Sentry and Datadog
- Auto-generated Swagger/OpenAPI docs
- 99.9% uptime SLA
- Fixed-price contract from week 2
- Dedicated senior team with knowledge transfers
Our API integration process
From audit to deployment in 8 to 12 weeks.
We follow a four-phase process that eliminates guesswork. Each phase ends with a deliverable you can review and approve before we move forward.
This structured approach keeps every project on budget and on schedule. IRPR has completed over 200 integrations using this methodology.
What ships with every API integration
You own everything. No black boxes, no proprietary frameworks.
Every IRPR client receives the complete source code, infrastructure as code, and full documentation. You can run, modify, and scale the integration without us.
Here is exactly what gets delivered at the end of your 12-week engagement.
- Source code in private GitHub repository (full ownership)
- CI/CD pipeline on GitHub Actions with automated testing
- Swagger/OpenAPI documentation for every endpoint
- Postman collection with example requests
- Error logs and monitoring dashboards (Datadog, Sentry)
- Unit and integration tests with 80%+ code coverage
- Infrastructure as code (Terraform) for AWS or GCP
- Security audit report covering OWASP Top 10
- Runbook for operations team with troubleshooting steps
- SLA with 99.9% uptime guarantee and incident response times
What we ship in this practice.
Stripe and Plaid integration for a lending platform
Built a secure payment and bank account integration that reduced payment failure rate from 15% to 2%. Tech stack: Node.js, Express, PostgreSQL, AWS Lambda, Stripe API, Plaid API.
EHR-to-telehealth sync for a hospital network
Developed a HIPAA-compliant integration between Epic EHR and a telehealth platform. Connected 500+ providers. Tech stack: FHIR API, Python, Azure Functions, HL7 v2.
Inventory sync between Shopify, QuickBooks, and warehouse
Real-time two-way sync for 10,000+ SKUs across systems. Eliminated manual data entry errors. Tech stack: Shopfiy GraphQL, QuickBooks API, Node.js, WebSockets, RabbitMQ.
CRM-to-marketing automation hub for a SaaS company
Synced leads from Salesforce to HubSpot and Mailchimp with custom scoring rules. Increased lead response time by 40%. Tech stack: Salesforce REST API, HubSpot API, Node.js, PostgreSQL.
Real estate MLS data ingestion for a property portal
Built a pipeline to ingest listing data from 12 MLS systems into a unified database. Reduced update lag from 24 hours to 5 minutes. Tech stack: Python, AWS Lambda, RDS, RETS API.
Shipping and tracking integration for a logistics provider
Connected a TMS to FedEx, UPS, and DHL APIs for automated label generation and tracking updates. Saved 20 hours/week in manual data entry. Tech stack: Node.js, Express, Redis, REST APIs.
Why teams hire us.
Fixed price from week 2
After the integration audit (week 1), we lock the scope and price. No hourly billing, no surprise invoices. IRPR has delivered 200+ projects on fixed budgets.
Senior engineers only, no juniors
Every integration is built by engineers with 8+ years of experience. We never outsource to junior developers or offshore teams.
Full code ownership
You own the complete source code, infrastructure scripts, and documentation. No proprietary frameworks, no lock-in. Deploy on your own AWS account.
99.9% uptime SLA
Every integration includes monitoring, alerting, and an SLA with guaranteed uptime. If we drop below 99.9%, you get a service credit.
8 to 12 week guaranteed timeline
We ship your first integration in 8 weeks, complex integrations in 12. IRPR has maintained a 98% on-time delivery rate across all projects.
30-day post-launch support
After go-live, we monitor the integration for 30 days, fix any issues, and hand over full runbooks to your team. No extra charge.
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.