API Integration Development VendorDevelopment Vendor
We build custom API integrations that connect your stack in 8 to 12 weeks. Stop stitching tools together yourself — get a fixed-price vendor that ships.
IRPR is an API integration development vendor that builds custom connectors using REST, GraphQL, SOAP, and middleware tools like MuleSoft and Apigee. We write every integration from scratch to match your data model, not a template.
Our standard timeline is 8 to 12 weeks from kickoff to production. Fixed pricing starts at $50,000 for a single bidirectional integration and ranges up to $250,000 for complex enterprise systems with multiple endpoints and compliance requirements.
We work with CTOs who need to unify a SaaS stack, product managers launching a marketplace integration, engineering leads migrating legacy SOAP APIs to GraphQL, and compliance officers who require HIPAA or PCI-DSS certified data flows.
Types of software we ship.
CRM Integration
Connect Salesforce, HubSpot, or Zoho to your ERP, marketing tools, or data warehouse using real-time sync or batch ETL.
Payment Gateway Integration
Integrate Stripe, Braintree, or Adyen with your ecommerce platform, subscription billing system, or POS. Handles PCI-DSS compliance.
EDI Integration
Replace outdated EDI VANs with modern REST or AS2 endpoints for purchase orders, invoices, and shipping notices in retail and manufacturing.
Cloud to Cloud Data Sync
Keep data consistent across Google Cloud, AWS, Azure, and SaaS apps using event-driven pipelines with Kafka or AWS SQS.
Legacy System Integration
Wrap old on-premise databases or mainframe APIs with RESTful microservices. No rewrites, just secure access layers.
ERP Integration
Link NetSuite, SAP, or Microsoft Dynamics to your CRM and logistics providers. Automate inventory, order, and financial flows.
Social Media API Integration
Pull data from Facebook, Instagram, Twitter, LinkedIn into your analytics dashboards, CRM, or content management systems.
Chatbot & Voice API Integration
Connect your chatbot (Dialogflow, Lex) to backend databases, ticketing systems, or payment APIs for full conversational commerce.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS Companies
Logistics & Manufacturing
Why hire a dedicated API integration development vendor
IRPR has shipped over 200 integrations across 50 countries, averaging 12 weeks per project with 98% on-time delivery.
We replace the headache of juggling freelance developers or half-baked iPaaS solutions. Every integration comes with auto-generated API documentation, error handling, and monitoring dashboards built in.
Our team of senior engineers writes production-ready code in TypeScript, Python, or Java. We test every endpoint with automated regression suites and deploy through CI/CD pipelines on GitHub Actions.
The difference between a generic shop and a real integration vendor
Most agencies treat API integration as a side project. IRPR treats it as the core deliverable.
Generic shops hand you uncommented code and disappear. We hand you a running integration with a test suite, deployment playbook, and a direct line to the engineer who built it.
Every IRPR integration includes uptime monitoring, error alerts via Sentry, and a 30-day warranty at no extra cost.
- No dedicated integration architect
- Hourly billing with no fixed quote
- No automated testing of endpoints
- No error handling for rate limits
- No documentation except code comments
- Weeks of handoff after delivery
- Senior engineer assigned to your project
- Fixed price quoted in week 2 of roadmap
- Automated regression test suite
- Built-in retry logic and backoff strategies
- Auto-generated OpenAPI docs
- Direct slack access to the developer
Our process for building API integrations
We move from discovery to production in four phases, each with clear deliverables and milestones.
Phase 1 is a 2-week Roadmap where we map every API endpoint, data schema, and business rule. You get a fixed price and timeline before a single line of code is written.
Phases 2-4 cover implementation, testing, and deployment. We use staging environments and run end-to-end tests before cutting over to production.
What ships with every API integration project
You own everything. No black boxes, no licensing fees, no hidden costs.
Every project delivers the full source code, infrastructure code, and operational tooling. You can deploy, modify, or decommission the integration without IRPR.
We also ship a Postman collection with sample requests and environment variables so your team can test endpoints immediately.
- Full source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Automated test suite (unit + integration + load)
- Sentry error tracking and performance monitoring
- OpenAPI 3.0 documentation
- Postman collection with environment variables
- Deployment runbook for your cloud provider
- 30-day post-launch warranty on defects
- Slack channel with the engineering team
- Regular status reports and milestone demos
What we ship in this practice.
Healthcare patient data integration
Connected an EHR system (Epic) to a patient portal using FHIR APIs. Reduced manual data entry by 12 hours per week per clinician. Stack: Python, FHIR, AWS Lambda.
Fintech payment reconciliation
Built a Stripe-to-NetSuite integration that auto-reconciles 5,000+ daily transactions. Cut reconciliation time from 2 days to 30 minutes. Stack: Node.js, Stripe API, NetSuite REST.
Ecommerce marketplace synchronization
Created a two-way sync between Shopify and a custom warehouse management system. Inventory updates propagate in under 30 seconds. Stack: Shopify GraphQL, Go, Redis.
SaaS CRM to marketing automation
Integrated HubSpot with Salesforce, syncing contacts, deals, and campaigns with conflict resolution. Increased lead response time by 40%. Stack: Typescript, HubSpot API, Salesforce Bulk API.
Logistics carrier tracking integration
Unified tracking from FedEx, UPS, and DHL into a single dashboard. Saved 15 hours per week of manual tracking lookups. Stack: Java, Spring Boot, Kafka.
Real estate MLS data feed
Pulled listings from 12 MLS providers via RETS and RESO Web API, normalized into one schema for a property search app. Delivered 99.5% uptime on listing syncs. Stack: Python, Postgres, Celery.
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 assign developers with 5+ years of experience building production integrations. No junior or offshore teams. Average tenure at IRPR is 4 years.
Own the code fully
You get 100% ownership of all source code, documentation, and infrastructure scripts. No licensing fees, no vendor lock-in after delivery.
Built for compliance
We handle HIPAA, PCI-DSS, SOC 2, and FERPA requirements natively. Every integration includes audit logging, encryption at rest, and RBAC.
On-time delivery guarantee
98% of our projects ship on or before the original timeline. We track milestones weekly and surface risks early with a traffic light system.
Post-launch support included
Every project includes 30 days of warranty support with 4-hour response time. We also offer ongoing maintenance at a flat monthly retainer.
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.
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