expert api integration development consultantsdevelopment consultants
We connect your apps in 8-12 weeks with a fixed price. No surprises, just working integrations.
IRPR builds custom API integrations that connect your SaaS tools, legacy systems, and third-party platforms. We work with REST, GraphQL, SOAP, and gRPC protocols, plus auth standards like OAuth 2.0 and SAML.
A typical API integration ships in 8-12 weeks with a fixed price from $80K to $250K. We handle data mapping, error handling, rate limiting, and compliance for HIPAA, PCI-DSS, SOC 2, and FERPA.
We work with CTOs who need to sync Salesforce with a homegrown ERP, product managers automating ecommerce order flows between Shopify, NetSuite, and 3PLs, and engineering leads replacing five separate integrations with one unified API layer.
Types of software we ship.
Salesforce CRM integration
Sync leads, contacts, and opportunities between Salesforce and your internal CRM or ERP via SOAP or REST.
Stripe payment gateway integration
Connect Stripe to your subscription platform or marketplace with webhook handling, refunds, and PCI-DSS compliance.
Shopify ecommerce integration
Sync orders, inventory, and customer data between Shopify and your WMS or accounting system in real time.
HubSpot marketing automation integration
Push contacts, deal stages, and campaign data between HubSpot and your custom app using HubSpot API v3.
NetSuite ERP integration
Bidirectional sync of invoices, purchase orders, and inventory between NetSuite and your operations platform.
QuickBooks accounting integration
Automate invoice creation, expense tracking, and reconciliation between your app and QuickBooks Online.
Twilio SMS/Voice integration
Add two-factor authentication, appointment reminders, or voice IVR flows using Twilio's Programmable Messaging API.
Slack workflow integration
Alert teams on new orders, support tickets, or deployment failures via Slack's Web API and incoming webhooks.
We build for every business type.
SaaS companies
ecommerce brands
healthcare organizations
fintech firms
logistics and supply chain
Our API integration track record in numbers
We have shipped over 200 products with API integrations across 50+ countries.
Every integration we build includes rate limiting, retry logic, error logging, and a monitoring dashboard. We use tools like Postman for testing, Kong for API gateways, and Datadog for uptime alerts.
Our integrations achieve 99.9% uptime and process millions of API calls per month. Clients see a 40% reduction in manual data entry after go-live.
The difference between generic API shops and IRPR
Most dev shops send you a junior developer and bill by the hour. We do the opposite.
Generic shops often deliver an integration that works on week one and breaks on month three. They skip error handling, leave no documentation, and charge for every change.
IRPR builds integrations that are production-ready from day one. Every endpoint is documented in Swagger, every failure is logged to Sentry, and every integration includes a runbook.
- Hourly billing with no cap
- Junior dev assigned
- No rate limiting or retry logic
- No documentation
- No error monitoring
- Scope creep every sprint
- Fixed price from Roadmap phase
- Senior engineers only
- Built-in rate limiting and retries
- Swagger/OpenAPI docs included
- Sentry error tracking
- Change requests priced upfront
How we deliver your API integration in 5 phases
Our process moves from idea to production in 8-12 weeks.
Phase one is the Roadmap: we scope every endpoint, data mapping, and auth flow. You get a fixed quote and a timeline before any code is written.
Phases two through four are two-week sprints where we build, test, and deploy each integration. Phase five is a two-week hardening period with load testing and monitoring setup.
What ships with every API integration
Every integration includes a complete delivery package, not just code.
You get source code in your private GitHub repo from day one. We do not hold your code hostage.
- Source code in your GitHub repo
- CI/CD pipeline on GitHub Actions
- Swagger/OpenAPI 3.0 documentation
- Postman collection with example requests
- Sentry error tracking integration
- Datadog monitoring dashboard
- Rate limiting and retry logic
- Auth flow (OAuth 2.0, API key, or SAML)
- Deployment runbook
- 48-hour post-launch monitoring
What we ship in this practice.
Salesforce-to-QuickBooks sync for a SaaS company
We built a bidirectional sync between Salesforce opportunities and QuickBooks invoices. The client reduced manual data entry by 8 hours per week. Tech: Node.js, Salesforce REST API, QuickBooks Online API, PostgreSQL.
Shopify-to-NetSuite order integration for a DTC brand
We connected Shopify orders to NetSuite for real-time inventory and accounting updates. Order processing time dropped from 4 hours to 15 minutes daily. Tech: Next.js, Shopify GraphQL API, NetSuite SuiteTalk SOAP, Redis.
Twilio-to-EHR appointment reminders for a telehealth startup
We integrated Twilio's SMS API with an EHR platform to send automated appointment reminders and confirmations. No-show rates dropped by 30%. Tech: Python, Django, Twilio API, FHIR, HIPAA-compliant infra.
HubSpot-to-custom CRM integration for a real estate firm
We synced contact and deal data between HubSpot and a custom-built property management CRM. The team eliminated duplicate data entry across 3 systems. Tech: Ruby on Rails, HubSpot API v3, PostgreSQL, Sidekiq.
Stripe-to-subscription platform integration for a fintech startup
We built a custom Stripe checkout flow with webhook handling for subscription lifecycle events. The client achieved PCI-DSS Level 1 compliance and reduced failed payments by 15%. Tech: Node.js, Stripe API, MongoDB, AWS Lambda.
Slack-to-warehouse alert system for a logistics firm
We connected a warehouse management system to Slack with real-time alerts for order exceptions and inventory shortages. Response time dropped from 2 hours to under 5 minutes. Tech: Python, Slack Web API, GraphQL, Kubernetes.
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.
Senior engineers only
We do not hire juniors. Every engineer on your project has 8+ years of experience with distributed systems and API design.
You own the code
All source code, documentation, and configs are in your GitHub repo from sprint one. We do not use proprietary frameworks.
Production-ready from day one
Every integration ships with rate limiting, retry logic, error logging, and monitoring. We do not hand over prototypes.
Compliance built in
We have built integrations for HIPAA, PCI-DSS, SOC 2, and FERPA environments. Our security playbook covers encryption at rest and in transit, audit logs, and access controls.
Start in 2 weeks
After a discovery call, we can kick off the Roadmap phase within 10 business days. The average time from hello to working integration is 12 weeks.
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.