Experienced Backend API Development AgencyBackend API
We build production-grade APIs for fintech, healthcare, and SaaS companies. 8-12 week delivery with fixed pricing and full code ownership.
IRPR is an experienced backend API development agency. We build REST, GraphQL, and gRPC APIs using Node.js, Go, Python, PostgreSQL, Redis, and Kafka. Every API is designed for scale, security, and developer experience.
We ship production-ready APIs in 8-12 weeks. Pricing is fixed from $80K to $250K depending on complexity. We handle compliance for HIPAA, PCI-DSS, SOC 2, and FERPA. You get full source code and CI/CD pipelines in your own repo.
Companies hire us to build backend APIs for their SaaS platforms, mobile apps, and internal tools. Our buyers are CTOs at Series A startups, product directors at healthcare companies, and engineering managers at fintech firms who need a reliable API partner.
Types of software we ship.
REST API Development
Build RESTful APIs with OpenAPI 3.0 specs, JWT auth, and rate limiting. Integrates with Stripe, Twilio, and AWS.
GraphQL API Development
Design GraphQL schemas with Apollo Server, DataLoader for batching, and real-time subscriptions via WebSockets.
Third-Party API Integration
Connect your system to Salesforce, HubSpot, QuickBooks, or Slack via their public APIs. Handles OAuth 2.0 and webhooks.
Microservices API Gateway
Deploy an API gateway using Kong or NGINX with service discovery, load balancing, and circuit breakers for microservices.
Real-Time API (WebSocket)
Build real-time APIs with WebSocket or Server-Sent Events for live dashboards, chat, and notifications. Uses Redis Pub/Sub.
Internal API for SaaS Platforms
Create private APIs for your SaaS backend to handle user management, billing, and analytics. Ships with Postman collections.
Public API for Developers
Launch a developer-facing API with API keys, usage tiers, documentation portal, and SDK examples in Python and JavaScript.
Data Sync & ETL API
Build APIs that sync data between your CRM, ERP, and warehouse using batch endpoints and incremental sync via change data capture.
We build for every business type.
Fintech & Banking
Healthcare & Life Sciences
SaaS & Enterprise
Ecommerce & Retail
Logistics & Supply Chain
Why You Need an Experienced Backend API Development Agency
A poorly built API costs you in maintenance, security breaches, and lost developer trust.
IRPR has shipped 200+ APIs for companies in fintech, healthcare, and SaaS. We follow strict patterns: OpenAPI specs, automated testing with 95%+ coverage, and CI/CD that deploys to AWS or GCP in under 10 minutes. Every API is documented with Swagger UI and Postman collections.
Our clients see 40% faster integration times for their partners and 99.9% uptime from day one. We use PostgreSQL for relational data, Redis for caching, and Kafka for event-driven workflows. You get a production-grade API that your developers actually want to use.
How IRPR Differs from Other Backend API Agencies
Most agencies deliver incomplete APIs with hidden fees and no ownership transfer.
We have seen projects where agencies delivered a half-baked API with no documentation, no tests, and a monthly maintenance contract that cost more than the build. That does not happen with IRPR. We give you full source code, all documentation, and a fixed price from week 2.
Our Roadmap phase (week 2) produces a detailed API spec with endpoints, data models, and integration plans. You approve it before we write a single line of code. No surprises, no scope creep, no vendor lock-in.
- No API documentation or OpenAPI spec
- Test coverage below 30%
- Monthly maintenance fees after delivery
- No CI/CD pipeline included
- Scope creep and hourly billing
- No compliance support
- Full OpenAPI 3.0 spec with Swagger UI
- 95%+ test coverage with automated runs
- Full code ownership, no recurring fees
- CI/CD pipeline on GitHub Actions or GitLab
- Fixed price from Roadmap phase
- HIPAA, PCI-DSS, SOC 2 compliance built in
Our Backend API Development Process
We ship production-grade APIs in 8-12 weeks with a proven 4-phase process.
Every project starts with a 2-week Roadmap phase where we define the API contract, data model, and infrastructure plan. You get a detailed document with endpoints, request/response schemas, authentication strategy, and deployment architecture.
Then we build in 2-week sprints. Each sprint ends with a working API deployed to a staging environment. You test it, give feedback, and we iterate. The final phase includes load testing, security audit, and production deployment.
What Ships with Every API Project
You get everything you need to run and maintain your API in production.
We do not hand over a zip file and walk away. Every project includes source code, infrastructure as code, CI/CD pipelines, monitoring dashboards, and full documentation. Your team can take over from day one.
All code is in your private GitHub or GitLab repository. We set up Sentry for error tracking, Datadog for performance monitoring, and PagerDuty for alerts. You get a production-ready system that is maintainable and scalable.
- Source code in your private GitHub/GitLab repo
- OpenAPI 3.0 spec with Swagger UI
- CI/CD pipeline on GitHub Actions
- 95%+ automated test coverage
- Postman collection for every endpoint
- Infrastructure as code (Terraform or Pulumi)
- Sentry error tracking and Datadog monitoring
- Security audit report (OWASP Top 10)
- Load test results with k6
- 1-year warranty on production bugs
What we ship in this practice.
Payment Processing API for Fintech Startup
Built a REST API that processes 5,000+ payments per day via Stripe and Plaid. Reduced transaction failure rate from 4% to 0.5%. Tech stack: Node.js, PostgreSQL, Redis, Stripe API.
HIPAA-Compliant Patient Data API for Telehealth
Developed a GraphQL API for patient records, appointments, and video sessions. Handled 50,000+ patient records with full audit logging. Tech stack: Go, PostgreSQL, Twilio Video, AWS HealthLake.
Multi-Tenant SaaS API for CRM Platform
Created a REST API with per-tenant isolation, rate limiting, and usage tracking. Onboarded 200+ tenants in the first quarter. Tech stack: Python, FastAPI, PostgreSQL, Redis, Docker.
Ecommerce Order Fulfillment API
Built an API that syncs orders between Shopify, warehouse WMS, and shipping carriers. Reduced manual data entry by 12 hours per week. Tech stack: Node.js, PostgreSQL, Shopify API, ShipStation.
Real-Time Fleet Tracking API for Logistics
Developed a WebSocket API that streams GPS data from 1,000+ vehicles with sub-second latency. Improved route efficiency by 18%. Tech stack: Go, Redis Pub/Sub, Kafka, AWS IoT Core.
Developer Portal API for EdTech Platform
Launched a public REST API with API key management, usage analytics, and SDK examples. Attracted 150+ third-party developers in 6 months. Tech stack: Node.js, PostgreSQL, Stripe, Swagger.
Why teams hire us.
200+ APIs shipped across 50 countries
We have built APIs for fintech, healthcare, SaaS, and logistics companies worldwide. Our portfolio includes payment systems, patient data platforms, and real-time tracking APIs.
Fixed price, not hourly billing
Every API 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 code.
Full code ownership from day one
All source code, infrastructure configs, and documentation are in your repo from the first sprint. No licensing fees, no recurring payments, no vendor lock-in.
Compliance built in, not bolted on
We build HIPAA, PCI-DSS, and SOC 2 compliance into the API architecture from the start. Audit logs, encryption, access controls are part of the design, not an afterthought.
8-12 week delivery with 98% on-time record
Our process is optimized for speed without cutting corners. We ship production-grade APIs in 8-12 weeks, and 98% of our projects finish on time.
Production support with 1-year warranty
We monitor your API with Datadog and Sentry after launch. Any production bug is fixed within 24 hours during the 1-year warranty period. No additional cost.
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.