Best API Integration Development ConsultantsAPI Integration
We build custom API integrations that connect your tools and automate workflows. Choose IRPR for reliable, scalable integration development.
IRPR builds custom API integrations that connect your SaaS tools, legacy systems, and third-party services. We use REST, GraphQL, WebSockets, and message queues (RabbitMQ, Kafka) to create reliable data flows between any two endpoints.
Every project ships in 8-12 weeks with a fixed price between $80K and $250K depending on complexity. We handle compliance standards like HIPAA, PCI-DSS, and SOC 2, and deliver full source code, documentation, and a CI/CD pipeline.
We work with CTOs who need to integrate a new payment gateway, product managers syncing data between Salesforce and HubSpot, ops directors automating inventory across ERP and ecommerce platforms, and enterprise architects connecting microservices in a hybrid cloud environment.
Types of software we ship.
REST API Connector
A stateless HTTP connector for syncing data between two RESTful services. Supports OAuth 2.0, API keys, and rate limiting.
GraphQL Gateway
Unifies multiple REST endpoints into a single GraphQL schema. Reduces frontend calls and simplifies data fetching for mobile apps.
Webhook Service
Receives real-time events from one system and forwards them to another. Handles retries, deduplication, and logging with AWS SQS.
Real-time Data Sync Engine
Keeps two databases in sync using change data capture (CDC) with Debezium and Kafka. Guarantees eventual consistency and low latency.
ETL Pipeline
Extracts, transforms, and loads data from sources like Shopify to a data warehouse (Snowflake, BigQuery). Built with Apache Airflow or AWS Glue.
API Management Platform
Centralized gateway with rate limiting, API key management, usage analytics, and developer portal. Deployed on AWS API Gateway or Kong.
Embedded Integration Marketplace
Lets your users connect to popular third-party apps (Stripe, Slack, Salesforce) without leaving your UI. Uses unified OAuth and standardized connectors.
Custom Middleware Layer
A lightweight service that transforms, routes, and enriches API requests between microservices. Built with Node.js or Go, deployed on Kubernetes.
We build for every business type.
SaaS companies
Ecommerce brands
Healthcare organizations
Fintech companies
Enterprise platforms
API Integration Stats That Matter
When you hire the best API integration development consultants, you need evidence that the approach works.
IRPR has shipped over 200 API integration projects across 50 countries. Our average integration connects 3 external systems and moves 2 million records per day. We maintain a 98% on-time delivery rate across all fixed-price engagements.
Our integrations run with 99.9% uptime in production. Each project includes automated monitoring (Datadog, Sentry) and alerting. We track latency, error rates, and data consistency so your team can sleep at night.
What Sets IRPR Apart from Other API Integration Consultants
Not all API development firms deliver the same quality. Here is the difference between a generic dev shop and IRPR.
Most agencies bill hourly, provide vague timelines, and hand over code with no documentation. They treat integrations as throwaway features. That leads to fragile connections that break when APIs change.
IRPR treats every integration as a product. We write automated tests, create Postman collections, and hand over a CI/CD pipeline. Your team can deploy updates without touching our code.
- hourly billing with no cap
- no dedicated architect
- code delivered without source control history
- no monitoring or alerting setup
- no load or integration testing
- no compliance documentation
- fixed price agreed in the Roadmap phase
- lead architect assigned to your project
- full source code in your private GitHub repo
- Sentry/Datadog monitoring built from day one
- automated test suite covering edge cases
- HIPAA/PCI/SOC 2 compliance logs included
Our API Integration Development Process
We follow a repeatable 4-phase process that removes guesswork from your integration project.
Phase 1: Discovery - we map your existing data flows, identify all endpoints, and document authentication methods. We spend 1 week understanding your environment and constraints.
Phase 2: Roadmap - we produce a fixed-price proposal with a timeline, milestones, and a risk register. You approve it with a simple signature. No surprises.
What Ships with Every API Integration Project
You receive more than just running code. Every deliverable is designed to make your team self-sufficient.
After launch, your internal developers can maintain and extend the integration without needing IRPR. We provide everything needed for long-term success.
- Source code in your private GitHub repository
- CI/CD pipeline on GitHub Actions with automated tests
- Postman collection with all API endpoints and examples
- API documentation in OpenAPI 3.0 format
- Sentry error tracking and Datadog monitoring dashboard
- Load test report (k6 or Artillery) showing throughput
- Security audit checklist (OWASP Top 10 verification)
- Deployment runbook with rollback steps
- Data flow diagram and architecture document
- 30-day post-launch support with 4-hour response SLA
What we ship in this practice.
Salesforce-to-Marketo Lead Sync
Built a bi-directional real-time sync between Salesforce and Marketo. Reduced manual lead entry by 12 hours per week. Stack: Node.js, MuleSoft, AWS Lambda, PostgreSQL.
Real-time Inventory API for Ecommerce
Connected Shopify, BigCommerce, and a warehouse ERP so stock levels update every 60 seconds. Cut inventory errors by 95%. Stack: Python, Shopify REST API, AWS DynamoDB, WebSocket.
HIPAA-Compliant Patient Data Exchange
Integrated an EHR system with a telehealth platform using FHIR APIs. Processed 10,000 patient records per night with full encryption. Stack: FHIR R4, Node.js, Azure FHIR Service, MongoDB.
PCI-Compliant Payment Gateway Aggregator
Developed a unified API that routes transactions to Stripe, Braintree, and Adyen based on card type. Handled $5M in monthly volume. Stack: Go, gRPC, Redis, AWS ECS.
Real Estate MLS Data Sync Engine
Built a connector that pulls listings from 5 MLS systems and pushes them to a custom CRM. Delivered 50,000 property updates per day. Stack: PHP, REST APIs, RabbitMQ, MySQL.
EdTech LMS to SIS Data Bridge
Synced student enrollment, grades, and attendance between Canvas LMS and PowerSchool SIS. Eliminated duplicate data entry for 200 teachers. Stack: Ruby on Rails, GraphQL, AWS SQS, DynamoDB.
Why teams hire us.
Fixed price, not hourly
Every integration project gets a fixed quote during the Roadmap phase. No hourly billing, no surprise invoices, no scope creep charges. You know the cost from week 2.
Senior engineers only
All IRPR engineers have 10+ years of experience. No junior developers. Your project is led by an architect who has shipped at least 10 production integrations.
Full code ownership
We put all source code in your private repository from day one. You own every line. There are no licensing fees or ongoing royalties.
Compliance baked in
We build HIPAA, PCI-DSS, SOC 2, and GDPR compliance into every integration. We provide documentation and audit logs so you can pass certification.
Production-ready monitoring
Every integration ships with Sentry error tracking and Datadog metrics. We set up alerts for latency, error rate, and data freshness before launch.
Post-launch support
We include 30 days of dedicated support after release. Your team gets a 4-hour response SLA for any production issue. We stay until you are comfortable.
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.