Top Backend API Development AgencyBackend API
We build scalable, secure APIs that power your product. 200+ APIs shipped, 8-12 week delivery.
IRPR builds backend APIs that handle authentication, data processing, and third-party integrations. We use Node.js, Python, Go, and frameworks like Express, FastAPI, and Gin.
We deliver production-ready APIs with auto-generated docs (Swagger/OpenAPI), CI/CD pipelines, and monitoring (Datadog). Timeline is 8-12 weeks. Pricing ranges from $80K to $250K. We comply with HIPAA, PCI-DSS, SOC 2.
CTOs building a SaaS MVP need a scalable API from day one. Product owners migrating from monolithic to microservices require a clean API boundary. Startups launching a mobile app need a backend that handles 10K+ concurrent users. Enterprise teams integrating with legacy systems need secure, documented APIs.
Types of software we ship.
REST API
Stateless APIs using HTTP methods. We use Express.js, Django REST Framework, or Spring Boot with PostgreSQL and Redis caching.
GraphQL API
Flexible queries for frontend teams. We use Apollo Server, GraphQL Yoga, and Prisma for type-safe database access.
gRPC API
High-performance APIs for internal services. We use Protocol Buffers, Go, and gRPC-Web for browser support.
WebSocket API
Real-time bidirectional communication. We use Socket.io, AWS API Gateway WebSockets, and Redis pub/sub for chat and live updates.
Microservices API Gateway
Single entry point for multiple services. We use Kong, NGINX, or AWS API Gateway with rate limiting and auth.
Third-party API Integration
Connect your app to Stripe, Salesforce, HubSpot, Twilio. We handle OAuth, webhooks, and data sync.
Real-time Data API
Streaming data with Server-Sent Events or WebSockets. We use Kafka, RabbitMQ, and InfluxDB for time-series data.
B2B API
Partner-facing APIs with API keys, usage plans, and developer portals. We use Postman collections, Swagger, and API monetization via Stripe.
We build for every business type.
SaaS platforms
Fintech companies
Healthcare organizations
Ecommerce businesses
Logistics and supply chain
Backend API Development by the Numbers
Our APIs power applications across 50+ countries with high reliability.
We have built over 200 backend APIs for startups and enterprises. Our average project delivers in 10 weeks with 98% on-time rate.
Our APIs handle millions of requests daily with 99.9% uptime. We use automated testing and continuous deployment to maintain quality.
Generic Dev Shop vs IRPR
Not all API development is the same. See how we differ.
Many agencies rush to code without a clear API contract. This leads to scope creep and broken integrations.
IRPR starts with a Roadmap phase where we define every endpoint, data model, and security requirement before writing a single line of code.
- Starts coding without API spec
- Uses ad-hoc authentication
- No documentation until the end
- Monolithic codebase
- No monitoring or alerts
- Hourly billing with surprises
- Roadmap defines every endpoint and contract
- OAuth 2.0 / JWT from day one
- Auto-generated Swagger docs with each build
- Microservices-ready with clear boundaries
- Datadog monitoring and PagerDuty alerts
- Fixed price based on Roadmap
Our 4-Phase Backend API Process
From idea to production API in 8-12 weeks.
We follow a structured process to ensure your API is secure, scalable, and documented.
Each phase has clear deliverables and a fixed timeline.
What Ships with Every Backend API
Every project includes these deliverables by default.
- Source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- Swagger/OpenAPI documentation
- Docker containers for local development
- Postman collection for testing
- Sentry error tracking
- Datadog monitoring dashboard
- Load testing report with k6
- Security audit (OWASP top 10)
- Deployment guide and runbook
What we ship in this practice.
Subscription Billing API for Fintech Startup
Built a REST API for recurring billing that handles 50K subscriptions. Used Node.js, Stripe, PostgreSQL, and Redis. Reduced payment failure rate by 30% with smart retries.
Real-Time Inventory API for Ecommerce
Developed a WebSocket API for real-time inventory sync across 5 warehouses. Used Go, Kafka, and MongoDB. Cut inventory discrepancy from 5% to 0.1%.
Patient Data API for Telehealth Platform
Created a HIPAA-compliant GraphQL API for patient records. Used Apollo Server, PostgreSQL, and AWS KMS for encryption. Reduced data retrieval time by 60%.
Order Management API for Logistics SaaS
Built a gRPC API for order routing with 99.99% uptime. Used Go, RabbitMQ, and Redis. Handles 10K orders per minute during peak.
Content Recommendation API for Media Platform
Developed a real-time recommendation engine API using Python, FastAPI, and TensorFlow. Increased user engagement by 25% with personalized feeds.
Payment Gateway API for Fintech
Built PCI-DSS compliant REST API integrating multiple payment providers. Used Node.js, Stripe, and Square. Processed $10M in transactions in first month.
Why teams hire us.
Fixed Price, Not Hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. Our average project is $80K-$250K.
Senior Engineers Only
Our team consists of senior engineers with 10+ years experience. No juniors, no outsourcing. Each engineer ships 2x the output of a typical developer.
8-12 Week Delivery
We deliver production-ready APIs in 8-12 weeks. Our process is optimized for speed without sacrificing quality. 98% of projects ship on time.
Full Code Ownership
You own 100% of the source code, documentation, and infrastructure. We transfer everything to your GitHub and AWS accounts. No lock-in.
Compliance Built In
We build HIPAA, PCI-DSS, SOC 2, and GDPR compliance into the API architecture from day one. Our APIs pass security audits on first submission.
Post-Launch Support
We provide 30 days of post-launch support and monitoring. Our team is available for ongoing maintenance at a fixed monthly retainer starting at $5K.
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.