Leading API Integration Development TeamAPI Integration
We build custom API connectors and middleware for your SaaS, fintech, or logistics platform. Ship in 8-12 weeks with a fixed price.
IRPR builds custom API integrations, connectors, and middleware for companies that need to connect their software to third-party services. We use REST, GraphQL, Webhooks, and message queues to handle data sync, authentication, and error handling.
Every project ships in 8-12 weeks with a fixed price ranging from $80K to $250K. We handle compliance like PCI-DSS for payments, HIPAA for healthcare, and SOC 2 for SaaS platforms.
Who hires us: CTOs who need to integrate Stripe, Salesforce, or ERP systems; product managers launching a marketplace that connects dozens of APIs; and compliance officers who require secure data pipelines between health systems and insurance gateways.
Types of software we ship.
Payment gateway integration
Build a payment connector that processes up to 10,000 transactions per minute using Stripe, Braintree, or Adyen with idempotency and retry logic.
CRM data sync
Synchronize contacts, deals, and activities between Salesforce, HubSpot, and Zoho. Handle field mapping, deduplication, and change tracking.
ERP system connector
Connect NetSuite, SAP, or Microsoft Dynamics to your platform. Map complex data models for invoices, purchase orders, and inventory.
Custom middleware for microservices
Build a lightweight middleware layer in Node.js or Go that routes requests, transforms payloads, and manages auth between services.
API gateway development
Design and implement an API gateway with rate limiting, caching, authentication, and logging using Kong or AWS API Gateway.
Webhook management system
Create a webhook orchestration service that delivers events to multiple endpoints, retries on failure, and logs delivery status.
SSO and identity federation
Implement single sign-on with OAuth2, SAML, or OpenID Connect. Integrate with Okta, Azure AD, or Auth0 for enterprise users.
Ecommerce platform connector
Build connectors for Shopify, WooCommerce, or BigCommerce to sync products, orders, and customers with your ERP or inventory system.
We build for every business type.
SaaS companies
Fintech
Ecommerce
Healthcare
Logistics
Why hire a leading API integration development team?
We have built over 200 integrations across 50+ countries.
Each integration is designed for reliability and scalability. Our team follows a standard API integration pattern: authentication, data model mapping, error handling, and monitoring.
We use tools like Swagger/OpenAPI, Postman, and custom test harnesses to validate every endpoint. Our middleware handles rate limiting, retries, and idempotency out of the box.
What sets IRPR apart from other API development teams?
Most agencies charge by the hour and miss deadlines. We deliver fixed-price, on-time integrations.
Generic dev shops often leave you with fragile code, no documentation, and no ongoing support. IRPR builds reusable, documented connectors that you can maintain yourself.
We also include monitoring dashboards, error alerts, and a CI/CD pipeline for your API integrations.
- Hourly billing that inflates costs
- No dedicated project manager
- No API documentation
- No error handling or retry logic
- No monitoring or alerting
- Code ownership unclear
- Fixed price from the start
- Dedicated project manager + senior engineers
- Auto-generated OpenAPI docs in your repo
- Built-in idempotency, retry, and circuit breakers
- Sentry and Datadog monitoring included
- Full source code ownership
Our API integration development process
From idea to production in 8-12 weeks.
Phase 1: Discovery and API mapping. We document every endpoint, authentication method, and data model of your target APIs. You get a detailed integration roadmap.
Phase 2: Build and test. Our engineers write the connectors, set up CI/CD, and deploy a staging environment for validation.
What ships with your API integration
Every integration includes these deliverables by default.
No hidden surprises. Every project delivers the same production-ready package.
- Source code in your private GitHub repo
- Auto-generated OpenAPI documentation
- CI/CD pipeline with GitHub Actions
- Sentry error tracking integrated
- Datadog or CloudWatch monitoring dashboards
- Integration test suite with 90%+ coverage
- Rate limiting and retry logic built-in
- Encrypted secrets management with Vault
- Deployment to AWS/GCP/Azure
- Knowledge transfer session with your team
What we ship in this practice.
Payment gateway integration for a fintech startup
Built a payment connector using Stripe and Go that processes 5,000 transactions per minute. Reduced payment failures by 30% with automatic retries and idempotency. Industry: fintech.
Salesforce-HubSpot data sync for a B2B SaaS
Developed a bidirectional sync with field mapping, deduplication, and change tracking. Handles 50,000 records nightly using Node.js and PostgreSQL. Industry: SaaS.
Ecommerce platform connector for a multi-store retailer
Connected 12 Shopify stores to a central inventory and order management system. Synchronized 10,000 product SKUs and 500 daily orders with 99.98% accuracy. Industry: ecommerce.
Healthcare claims API integration for an insurance admin
Integrated with Epic and Cerner to submit and track insurance claims in real time. Reduced manual claim entry by 8 hours per week using HL7 FHIR and Node.js. Industry: healthcare.
Real-time logistics tracking middleware for a shipping platform
Built a middleware that aggregates tracking status from FedEx, UPS, and USPS. Processes 2,000 tracking updates per minute with 99.9% uptime. Industry: logistics.
SSO identity federation for an enterprise SaaS
Implemented OAuth2 and SAML integration with Okta and Azure AD. Enabled 10,000 users to log in with their corporate credentials within 4 weeks. Industry: SaaS.
Why teams hire us.
Fixed price, not hourly
Every API integration gets a fixed quote after the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Every engineer on your project has 7+ years of experience. No juniors, no outsourcing. Our team includes full-stack and backend specialists.
We ship in 8-12 weeks
Our average delivery time is 12 weeks from kickoff to production. We use lean project management and daily standups to hit every milestone.
Full code ownership
You own all source code, tests, and documentation. No licensing fees, no vendor lock-in. You can deploy and maintain the integration yourself.
Compliance-ready
We built integrations for HIPAA, PCI-DSS, and SOC 2 environments. We can work within your compliance requirements and pass security audits.
24/7 monitoring included
Every integration includes Datadog or Sentry monitoring with alerts to your team. We provide a 2-week post-launch support period for handover.
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.