Top API Integration Development ServicesIntegration Development
We build custom API integrations that connect your tools and automate workflows. 200+ products shipped, 12-week delivery, fixed pricing.
IRPR builds top API integration development services for companies that need their software to talk to each other. We use REST, GraphQL, Webhooks, and message queues like RabbitMQ and Kafka to connect CRMs, ERPs, payment gateways, and third-party APIs into a single workflow.
Every project ships in 8-12 weeks with a fixed price between $80K and $250K. We handle compliance for HIPAA, PCI-DSS, SOC 2, and FERPA. You get source code, CI/CD pipelines, and monitoring dashboards by default.
CTOs hire us to replace fragile point-to-point integrations with a unified API layer. Product managers hire us to add Stripe, Salesforce, or HubSpot integrations to their SaaS. Operations directors hire us to sync inventory between Shopify and NetSuite.
Types of software we ship.
CRM Integration
Sync contacts, deals, and activities between Salesforce, HubSpot, and your internal tools using REST APIs and OAuth 2.0.
Payment Gateway Integration
Connect Stripe, Braintree, or Adyen to your checkout flow with idempotency keys and webhook retry logic.
ERP Integration
Link NetSuite, SAP, or Microsoft Dynamics to your ecommerce platform for real-time inventory and order sync.
Healthcare API Integration
Integrate EHR systems like Epic or Cerner using FHIR APIs while maintaining HIPAA compliance and audit logs.
Marketing Automation Integration
Connect Mailchimp, Klaviyo, or Marketo to your app for triggered email campaigns and lead scoring.
Data Warehouse Integration
Pipe data from multiple sources into Snowflake or BigQuery using ETL pipelines with Airflow and dbt.
SSO and Identity Integration
Implement single sign-on with Okta, Auth0, or Azure AD using SAML 2.0 and OIDC protocols.
Shipping and Logistics Integration
Connect Shippo, ShipStation, or FedEx APIs to generate labels, track packages, and update order status.
We build for every business type.
SaaS companies
Healthcare organizations
Fintech companies
Ecommerce brands
Enterprise teams
Why Top API Integration Development Services Matter
A single broken integration can cost your team hours of manual work every week.
When your CRM doesn't talk to your billing system, your sales team manually copies data. When your inventory system doesn't sync with your store, you oversell products. IRPR builds API integrations that eliminate these gaps. We use idempotent endpoints, retry logic, and dead-letter queues to handle failures gracefully.
Our integrations support rate limiting, pagination, and webhook verification out of the box. We test every endpoint with contract tests using Pact and monitor latency with Datadog. The result is a system that runs without manual intervention.
Generic Dev Shop vs IRPR: The Integration Difference
Not all API integration services are built the same. Here is what sets IRPR apart.
Generic dev shops treat API integration as a one-time coding task. They write a script, test it once, and hand it over. When the API changes or traffic spikes, the integration breaks and you pay for emergency fixes.
IRPR builds integrations as production-grade services. We add monitoring, alerting, and automated retries. We document every endpoint and provide a runbook for your team. You get a system that works without babysitting.
- No error handling for API rate limits
- No monitoring or alerting
- No documentation or runbooks
- No retry logic for failed requests
- No security review for API keys
- No testing for edge cases
- Idempotent endpoints with retry and backoff
- Datadog monitoring with PagerDuty alerts
- Full API documentation with Postman collections
- Dead-letter queues for failed messages
- Encrypted API key storage with Vault
- Contract tests with Pact for every endpoint
Our API Integration Process: 4 Phases
We follow a structured process to deliver your integration on time and on budget.
Every project starts with a discovery phase where we map your existing systems and identify the data that needs to flow between them. We then design the integration architecture, build and test the endpoints, and deploy with monitoring.
The process is transparent. You see progress in weekly demos and get a fixed price from day one. No surprises, no scope creep.
What Ships With Every API Integration
Every integration project includes these deliverables by default.
You get more than just code. Every project ships with documentation, monitoring, and a runbook so your team can operate the integration without IRPR. We also provide a 30-day warranty for any issues.
- Source code in your GitHub or GitLab repo
- CI/CD pipeline with GitHub Actions or GitLab CI
- Datadog monitoring dashboard with latency and error metrics
- PagerDuty alerting for integration failures
- Postman collection with all API endpoints
- Runbook with troubleshooting steps
- Unit tests and integration tests with 90%+ coverage
- Contract tests with Pact for third-party APIs
- Encrypted secrets management with HashiCorp Vault
- 30-day warranty for bug fixes
What we ship in this practice.
Salesforce to NetSuite Sync
Built a real-time sync between Salesforce opportunities and NetSuite orders. Reduced manual data entry by 10 hours per week. Tech stack: Node.js, Salesforce REST API, NetSuite SOAP API, RabbitMQ.
Stripe to QuickBooks Integration
Connected Stripe payments to QuickBooks Online for automated reconciliation. Saved the accounting team 15 hours per month. Tech stack: Python, Stripe API, QuickBooks API, Celery.
Epic EHR to Telehealth Platform
Integrated Epic FHIR APIs with a telehealth app for patient data exchange. Achieved HIPAA compliance and reduced appointment scheduling time by 40%. Tech stack: FHIR, React, AWS Lambda, DynamoDB.
Shopify to NetSuite Inventory Sync
Built a two-way inventory sync between Shopify and NetSuite. Eliminated overselling and reduced stockouts by 30%. Tech stack: Ruby on Rails, Shopify REST API, NetSuite REST API, Sidekiq.
HubSpot to Marketo Lead Sync
Created a bidirectional lead sync between HubSpot and Marketo with deduplication. Increased lead conversion rate by 25%. Tech stack: Python, HubSpot API, Marketo REST API, PostgreSQL.
Slack to Jira Ticket Integration
Built a Slack bot that creates Jira tickets from slash commands. Reduced ticket creation time from 5 minutes to 10 seconds. Tech stack: Node.js, Slack Events API, Jira REST API, MongoDB.
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. You know the cost before we write a line of code.
Senior engineers only
Every engineer at IRPR has 8+ years of experience. No juniors, no offshore teams, no handoffs. The person you talk to in the discovery call is the person who builds your integration.
Compliance built in
We handle HIPAA, PCI-DSS, SOC 2, and FERPA compliance as part of every integration. We encrypt data in transit and at rest, audit all access, and provide compliance documentation.
12-week delivery guarantee
We ship your integration in 8-12 weeks or we tell you why before you pay. Our process is designed for speed without cutting corners. 98% of our projects ship on time.
Full code ownership
You own all source code, documentation, and configuration files. No licensing fees, no vendor lock-in, no recurring payments. The code is yours to modify and deploy anywhere.
Post-launch support included
Every project includes 30 days of post-launch support for bug fixes and minor adjustments. We also offer ongoing maintenance contracts at $5K per month for monitoring and updates.
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.