API Integration Development ConsultantsDevelopment Consultants
We build APIs that connect your systems. 200+ integrations shipped for fintech, healthcare, and SaaS companies.
IRPR builds API integration solutions that connect your existing systems with third-party services. We use REST, GraphQL, Webhooks, and gRPC to handle data flow between CRM, ERP, payment gateways, and more.
Every project ships with a fully documented API, automated testing suite, and monitoring dashboards. Timeline: 8-12 weeks. Price range: $80K-$250K depending on complexity. Compliance: HIPAA, PCI-DSS, SOC 2 as needed.
CTOs at Series A startups needing to integrate Stripe and Salesforce. Data engineers at logistics companies connecting warehouse APIs. Product managers at healthcare platforms requiring HL7 FHIR integration. Tech leads at ecommerce brands syncing Shopify with NetSuite.
Types of software we ship.
Third-party API integration
Connect external services like Stripe, Twilio, or SendGrid. Handles authentication, rate limiting, and error recovery.
Internal system integration
Link legacy databases with modern microservices using REST or gRPC. Includes data transformation and logging.
Payment gateway integration
Integrate Stripe, Braintree, or Adyen with PCI-DSS compliance. Handles recurring billing and webhook events.
CRM integration
Sync Salesforce, HubSpot, or Zoho with your app. Supports field mapping, deduplication, and real-time updates.
ERP integration
Connect NetSuite, SAP, or Microsoft Dynamics. Manages inventory, orders, and financial data pipelines.
Data pipeline integration
Build ETL pipelines with Apache Airflow or Kafka. Handles batch and streaming data from multiple sources.
API gateway development
Implement Kong or AWS API Gateway. Provides rate limiting, authentication, and analytics for your APIs.
Real-time data sync
Use WebSocket or Server-Sent Events for live updates. Ideal for dashboards, notifications, and collaborative apps.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS
Logistics
Why hire API integration development consultants?
IRPR has shipped 200+ integrations across 50 countries with 98% on-time delivery.
API integration is more than connecting two endpoints. It involves data mapping, error handling, rate limiting, and monitoring. A poorly built integration can cause data loss, security breaches, and downtime.
IRPR treats integration as core architecture. We design for scalability, test for edge cases, and deploy with full observability. Our clients get a system that works reliably from day one.
How IRPR differs from generic development shops
Most agencies treat integration as an afterthought. IRPR builds it as the core architecture.
Generic shops often assign junior developers to integration tasks, leading to fragile code and technical debt. They skip automated testing and monitoring, leaving you blind to failures.
IRPR assigns a senior architect to every project. We write integration tests, set up Sentry and Datadog, and document every endpoint. You get a system that is maintainable and auditable.
- No dedicated API architect
- Reactive testing only
- No monitoring setup
- Unclear code ownership
- Hourly billing with scope creep
- No delivery guarantee
- API-first design by senior architect
- Automated integration tests (unit + e2e)
- Sentry + Datadog monitoring built in
- Full code ownership transferred
- Fixed price per phase after Roadmap
- 12-week delivery guarantee (98% on time)
Our API integration process
From discovery to deployment in 12 weeks. Every phase has a clear deliverable.
We start with a 2-week Roadmap to understand your systems, data flows, and compliance needs. You get a detailed plan and a fixed price before any development begins.
Then we build, test, and deploy in 10 weeks. You see progress every sprint and can test endpoints in staging before production.
What ships with every integration
Every project includes these deliverables by default. No hidden extras.
You get everything needed to run and maintain the integration independently.
- Source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- API documentation (Swagger/OpenAPI)
- Postman collection for testing
- Error tracking via Sentry
- Uptime monitoring via Datadog
- Load testing report (k6)
- Security audit report
- Deployment playbook
- 60-day post-launch support
What we ship in this practice.
Payment gateway for a telehealth platform
Integrated Stripe with a HIPAA-compliant EHR system. Reduced payment failure rate by 40% and saved 15 hours of manual reconciliation per week. Stack: Node.js, Stripe API, Twilio.
Real-time inventory sync for a retailer
Connected Shopify with NetSuite ERP using GraphQL and Kafka. Cut inventory discrepancies from 5% to 0.2% and eliminated overselling. Stack: GraphQL, Kafka, NetSuite REST API.
CRM data unification for a SaaS company
Merged Salesforce and HubSpot into a single view using MuleSoft. Saved the sales team 10 hours per week on manual data entry. Stack: MuleSoft, Python, PostgreSQL.
Banking API aggregation for a fintech startup
Aggregated accounts from 5 banks via Plaid. Enabled real-time balance checks and reduced transaction sync time from 24 hours to 2 minutes. Stack: Plaid API, AWS Lambda, DynamoDB.
Legacy system integration for a logistics firm
Connected an old warehouse database with a modern shipping API using Apache Airflow. Reduced order processing time from 4 hours to 20 minutes. Stack: Apache Airflow, REST endpoints, MySQL.
SSO integration for an edtech platform
Implemented OAuth 2.0 with Google and Microsoft via Auth0. Cut login-related support tickets by 60% and improved user onboarding speed. Stack: Auth0, Node.js, React.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote after the 2-week Roadmap. No hourly billing, no surprise invoices, no scope creep charges.
API-first architecture
We design the API contract before writing any UI code. This ensures scalability, easy testing, and future integration with other systems.
Security and compliance built in
Every integration is audited for PCI-DSS, HIPAA, or SOC 2. We include encryption, authentication, and logging by default.
Full code ownership
You own all source code, documentation, and deployment scripts. There is no licensing or ongoing royalty. You can modify or extend the integration at any time.
12-week delivery guarantee
We ship MVPs in 8-12 weeks. 98% of our projects finish on time. If we miss the deadline, you get a discount on the next phase.
Dedicated senior engineers
No junior developers. Each team includes a lead architect with 10+ years of experience. You work directly with the people building your integration.
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.