Expert API Integration Development FirmAPI Integration
We connect your software to any third-party API in 12 weeks. Fixed price, full ownership, no surprises.
IRPR is an expert API integration development firm that builds custom connections between your platform and any third-party service. We use REST, GraphQL, webhooks, and message queues (RabbitMQ, Kafka) to move data securely and reliably.
A typical API integration project ships in 8-12 weeks with a fixed price between $80K and $250K. Every integration is built to your compliance requirements: HIPAA for healthcare, PCI-DSS for payments, SOC 2 for SaaS, and FERPA for edtech.
We work with CTOs who need to sync Salesforce with a legacy ERP, product managers who want to add Stripe billing to a SaaS app, and compliance officers who require auditable data pipelines between internal systems and external APIs.
Types of software we ship.
REST API Integration
Build stateless, cacheable integrations with JSON payloads. Common for public APIs like Stripe, Twilio, and Salesforce.
GraphQL API Integration
Fetch exactly the data you need from APIs like Shopify, Contentful, and GitHub. Reduces over-fetching and speeds up front-end.
Webhook Integration
Receive real-time events from services like Slack, Stripe, or Zapier. Triggers automated workflows without polling.
SOAP API Integration
Connect to legacy enterprise systems (SAP, Oracle) that still use XML-based SOAP. We handle WSDL parsing and complex authentication.
Third-Party API Wrapper
Create a unified abstraction layer over multiple external APIs. One SDK replaces five separate integrations.
OAuth & SSO Integration
Implement secure authentication flows with OAuth 2.0, OpenID Connect, SAML. Supports providers like Google, Azure AD, Okta.
Payment Gateway Integration
Connect Stripe, Braintree, Adyen, or Square to your checkout. PCI-DSS Level 1 compliant, with tokenization and recurring billing.
Data Sync Integration
Synchronize data bi-directionally between CRM, ERP, and marketing platforms. Uses change data capture and idempotent retry logic.
We build for every business type.
SaaS platforms
Healthcare
Fintech
Ecommerce
Enterprise
Why You Need an Expert API Integration Development Firm
Third-party APIs change. Your business data must stay consistent across every system.
A single API endpoint can break your entire workflow when the provider updates their schema. IRPR builds integrations with version pinning, automated retry logic, and circuit breakers so your system stays up even when the upstream API goes down. We use tools like Postman, Insomnia, and custom mock servers to test every edge case before production.
Our team has integrated over 400 external APIs across 50 countries. We handle rate limiting, pagination, authentication (OAuth 2.0, API keys, JWT), and error handling as standard practice. Every integration ships with a monitoring dashboard (Datadog, Sentry) that alerts your team on latency spikes or failures.
Generic Dev Shop vs Expert API Integration Firm
Not every developer understands API rate limits, idempotency, or error recovery.
Many software agencies treat API integration as a side task. They wire up one endpoint, hardcode credentials, and move on. When the API updates or traffic spikes, the integration breaks silently. Your users see stale data or failed payments.
IRPR treats every integration as a production-grade service. We implement exponential backoff, dead-letter queues, and health checks. We write integration tests that run in CI/CD (GitHub Actions, CircleCI) so you catch breakage before deployment.
- Hardcodes API keys in source code
- No retry logic on 429 errors
- No monitoring or alerting
- Bills hourly for each change
- No documentation for endpoints
- One developer owns the integration
- Uses vaults (HashiCorp Vault, AWS Secrets Manager)
- Exponential backoff with jitter on rate limits
- Datadog dashboards and Sentry alerts out of box
- Fixed price per integration, no hourly surprises
- Auto-generated OpenAPI docs for every endpoint
- Team-based delivery with code reviews
How We Deliver Your API Integration
We follow a repeatable process that starts with a Roadmap and ends with a running integration.
Every project begins with a 2-week Roadmap phase. We map all endpoints, authentication flows, data schemas, and error scenarios. You get a fixed price and timeline before any code is written.
After approval, we build the integration in 2-week sprints. You see progress in a shared GitHub repo with CI/CD, automated tests, and staging environment. We deliver the final integration with monitoring, documentation, and a 30-day warranty.
What Ships With Every API Integration
You get more than just code. Every integration includes production-grade infrastructure.
A typical integration from IRPR includes source code, CI/CD pipeline, monitoring dashboards, and documentation. We do not hand over a zip file. You get a fully operational service running in your cloud environment.
All deliverables are built to be maintained by your team. We use standard tools (Docker, Terraform, GitHub Actions) so any senior engineer can take over after launch.
- Source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- Unit and integration tests (80%+ coverage)
- OpenAPI / Swagger documentation
- Datadog monitoring dashboard
- Sentry error tracking
- Secrets management (HashiCorp Vault or AWS Secrets Manager)
- Dockerized service with Kubernetes manifests
- Runbook for on-call engineers
- 30-day warranty post-launch
What we ship in this practice.
CRM to ERP Sync
A SaaS company needed to sync 50,000 contacts between HubSpot and NetSuite. IRPR built a bi-directional sync using webhooks and a dead-letter queue. Manual data entry dropped by 12 hours per week. Tech stack: Node.js, PostgreSQL, RabbitMQ, HubSpot API, NetSuite SOAP API.
Payment Gateway for Marketplace
A fintech startup needed to integrate Stripe Connect for a multi-vendor marketplace. IRPR built the full checkout flow with split payments, escrow, and refund handling. Time to launch was 10 weeks. Tech stack: Next.js, Stripe API, AWS Lambda, DynamoDB.
EHR Data Pipeline
A telehealth platform needed to pull patient records from Epic and Cerner. IRPR built a HIPAA-compliant pipeline using FHIR APIs and encrypted storage. Data retrieval time dropped from 5 minutes to 3 seconds. Tech stack: Python, FastAPI, FHIR, AWS KMS, PostgreSQL.
Shipping Integration for Ecommerce
A retailer needed real-time rates from FedEx, UPS, and DHL. IRPR built a rate-shopping service that selects the cheapest carrier at checkout. Shipping costs reduced by 8%. Tech stack: Go, REST APIs, Redis, Shopify API.
SSO for Enterprise SaaS
A B2B SaaS company needed SAML-based SSO for enterprise customers. IRPR integrated with Okta, Azure AD, and OneLogin. New enterprise deals closed 30% faster. Tech stack: Node.js, Passport.js, SAML, PostgreSQL.
Property Data Aggregation
A real estate platform needed to pull MLS listings from 50+ local boards. IRPR built a unified API layer that normalizes data from different MLS providers. Listing freshness improved from daily to real-time. Tech stack: Python, GraphQL, AWS SQS, PostgreSQL.
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.
Production-grade monitoring
We ship Datadog dashboards and Sentry alerts with every integration. Your team gets paged on 5xx errors, latency spikes, and rate limit warnings. Mean time to detection is under 2 minutes.
Compliance built in
We handle HIPAA, PCI-DSS, SOC 2, and FERPA out of the box. Every integration uses encrypted data in transit (TLS 1.3) and at rest (AES-256). Audit logs are generated automatically.
Team of senior engineers only
Every engineer at IRPR has 10+ years of experience. We do not outsource, offshore, or hire juniors. Your integration is built by a senior engineer who has shipped 20+ similar projects.
Full code ownership
You own the source code, CI/CD pipeline, and infrastructure from day one. No licensing fees, no vendor lock-in, no proprietary frameworks. Your team can maintain the integration after launch.
30-day warranty
After launch, we fix bugs and API changes for 30 days at no extra cost. If the upstream API breaks your integration, we update it within 24 hours. Your business keeps running.
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.