Top API Development StudioAPI Development
We build production-grade REST and GraphQL APIs for startups, SaaS, and fintech. 200+ APIs shipped in 8-12 weeks with fixed pricing.
IRPR is a top API development studio focused on building custom APIs for SaaS platforms, fintech apps, and data-intensive products. We use Node.js, Python, PostgreSQL, and GraphQL to design scalable API architectures that handle millions of requests per day.
Every API project ships in 8 to 12 weeks with a fixed price. Typical budgets range from $80K to $250K depending on complexity. We support compliance standards like HIPAA, PCI-DSS, and SOC 2 for regulated industries.
Who hires us? CTOs at Series A startups who need a reliable API backbone without hiring an internal team. Product managers at healthtech companies integrating with EHR systems. And engineering leaders at enterprises modernizing legacy data pipelines.
Types of software we ship.
REST API Development
Build resource-oriented APIs with Node.js, Django, or Laravel. Supports JSON, XML, OAuth 2.0, and rate limiting out of the box.
GraphQL API Development
GraphQL endpoints with Apollo or Relay. Single query fetches nested data from multiple sources. Great for mobile apps and complex dashboards.
API Integration Services
Connect third-party APIs like Stripe, Salesforce, Twilio, and HubSpot. Data sync, webhook receivers, and error retry logic included.
Microservices API
Split monolithic backends into independent services with gRPC or message queues. Services communicate over HTTP/2 or NATS for low latency.
Real-time API (WebSocket)
Event-driven APIs using WebSockets or Server-Sent Events for live feeds, notifications, and collaborative features. Backed by Redis and Socket.IO.
Serverless API
Lambda functions on AWS or Cloudflare Workers. Pay only for each request. Auto-scales from zero to thousands of requests per second.
API Gateway / BFF
Backend for Frontend layer that aggregates APIs, handles authentication, and simplifies client code. Uses Kong, Tyk, or custom Node.js.
API Documentation Portal
Auto-generated docs with OpenAPI/Swagger. Interactive playground, SDK code samples in 10+ languages, and version history.
We build for every business type.
Fintech and payments
Healthcare and life sciences
SaaS and enterprise
Ecommerce and retail
Media and content
Why choose a top API development studio?
Our API projects ship faster, run reliably, and never surprise you with cost overruns.
IRPR has delivered over 200 API projects across 50 countries. Our average time from concept to production is 12 weeks, and 98% of projects ship on time.
We maintain a 99.9% uptime SLA on all production APIs and provide dedicated monitoring with Datadog and Sentry. Every API comes with automated CI/CD, load testing, and security scanning.
Top API development studio vs generic dev shops
Many agencies claim API expertise but cut corners on documentation, security, and scalability.
Generic shops often deliver a single endpoint quickly but leave you with no documentation, no error handling, and no load testing.
IRPR builds production-grade APIs from day one. Every project includes OpenAPI specs, rate limiting, auth, monitoring, and a post-launch support guide.
- No API documentation
- No load testing
- No error handling patterns
- No versioning strategy
- No rate limiting
- No production monitoring
- OpenAPI/Swagger docs generated automatically
- Load tested with k6 or Artillery for target throughput
- Structured error responses with codes and messages
- Semantic versioning with deprecation policies
- Configurable rate limiting via middleware
- Datadog, Sentry, and uptime monitoring
How we build your API
From idea to production in 4 phases. Each phase has a fixed duration and clear deliverables.
Phase 1: API Design. We map endpoints, data models, auth flows, and error handling. You get a full OpenAPI spec and a review meeting.
Phase 2: Core Implementation. We build the API with your chosen stack (Node.js, Python, or Go). Each endpoint gets unit tests and integration tests.
Phase 3: Integration and Testing. We connect your API to third-party services, run load tests, and fix edge cases. You get a staging environment.
Phase 4: Production Release and Documentation. We deploy to your cloud, set up monitoring, and hand over the codebase with full runbooks.
What ships with every API project
Every API we build comes with the following included automatically.
- Source code in your private Git repository
- CI/CD pipeline with GitHub Actions or GitLab CI
- Auto-generated OpenAPI documentation
- Unit and integration test suite (80%+ coverage)
- Load testing script with k6 or Artillery
- Error tracking via Sentry
- Performance monitoring via Datadog
- Security scanning with Snyk or SonarQube
- Deployment playbook and runbook
- Post-launch support guide with SLA timeline
What we ship in this practice.
Fintech Payment Gateway API
Built a RESTful payment gateway API for a Latin American fintech. Using Node.js, PostgreSQL, and Stripe Connect, the API processes 10,000+ transactions per day with 99.99% uptime. Reduced transaction failure rate by 40%.
Healthcare EHR Integration API
Developed a FHIR-compliant API for a telehealth startup. The API connects their platform with Epic and Cerner, syncing patient data in real time. Saved 15 hours per week per clinic on manual data entry.
SaaS Multi-Tenant Billing API
Designed a GraphQL billing API for a B2B SaaS company. Supports usage-based pricing, invoice generation, and dunning. Reduced billing errors by 90% and cut development time for new features by 30%.
Ecommerce Order Management API
Created a microservices API for a mid-market retailer. Handles order validation, inventory check across 5 warehouses, and shipping label generation via Shippo. Scaled from 1,000 to 50,000 orders per month without downtime.
Real Estate MLS API
Built a high-performance API that aggregates MLS listings from 20+ sources. Uses Elasticsearch for full-text search and caching layer for sub-100ms responses. Delivered 3x faster load times for property search.
Media Content Distribution API
Developed a streaming API for a video platform. Uses HLS and DASH protocols, with CDN integration via Cloudflare. Handles 500,000 concurrent viewers during live events with sub-2 second latency.
Why teams hire us.
Fixed price, not hourly
Every API project gets a fixed quote after the Roadmap phase. No hourly billing, no surprise invoices for scope changes. Average project runs $80K to $250K with no cost overruns.
Senior engineers only
All API work is done by senior developers with 8+ years of experience. No junior developers or offshore outsourcing. Each engineer ships an average of 3 API projects per year.
Production-ready from day one
Every API includes OpenAPI docs, load testing, error tracking, and monitoring. We don't hand over a proof of concept. 98% of our API projects pass security audit on first review.
Compliance built in
We build HIPAA, PCI-DSS, and SOC 2 compliant APIs. Our team has built APIs for healthcare, fintech, and enterprise clients in 50 countries. We include audit logging, encryption, and access controls by default.
Rapid 8-12 week delivery
Most API projects go from concept to production in 8 to 12 weeks. We use a streamlined design-build-test cycle with weekly demos. 200+ products shipped with average 12-week timeline.
Full code ownership
After launch, you own all source code, documentation, and infrastructure config. We provide a handover playbook, runbook, and post-launch support. No lock-in, no licensing fees.
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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