Leading API Development DevelopersAPI Development
We build APIs that scale to millions of requests. Fixed price, senior-only teams, shipped in 8-12 weeks.
IRPR builds production-grade APIs using Node.js, Go, Python, and Postgres. We handle everything from RESTful endpoints to GraphQL schemas and gRPC services.
Every API ships with auto-generated OpenAPI docs, Postman collections, and a CI/CD pipeline. Timeline is 8-12 weeks. Fixed price starts at $80K and goes to $250K depending on complexity. We comply with HIPAA, PCI-DSS, and SOC 2.
CTOs hire us when their in-house team is stretched. Product managers hire us to ship a new integration layer. Startup founders hire us to build the API that powers their MVP. Enterprise architects hire us to modernize legacy systems.
Types of software we ship.
REST API Development
Stateless, cacheable endpoints using Express.js or Fastify. Perfect for CRUD apps and public-facing services.
GraphQL API Development
Single endpoint with Apollo Server or Yoga. Lets frontend teams query exactly what they need.
gRPC API Development
High-performance, bi-directional streaming using Protocol Buffers. Ideal for microservices communication.
Webhook API Development
Event-driven callbacks with retry logic and idempotency keys. Integrates with Stripe, Slack, and HubSpot.
Third-Party API Integration
Connect your app to Salesforce, Shopify, Twilio, or any external service. Includes rate limiting and error handling.
API Gateway Development
Central entry point with Kong or AWS API Gateway. Handles auth, throttling, logging, and routing.
Internal API Development
Private endpoints for service-to-service communication. Uses async messaging with RabbitMQ or Kafka.
API Documentation & Testing
Auto-generated docs with Swagger UI, integration tests with Supertest, and load tests with k6.
We build for every business type.
SaaS companies
Fintech firms
Healthcare organizations
Ecommerce brands
Logistics & supply chain
What leading API development developers deliver
Every API project from IRPR ships with a complete package, not just code.
You get versioned endpoints with automated CI/CD via GitHub Actions. Each API includes error tracking with Sentry and uptime monitoring with Datadog. We use Postman collections for manual testing and k6 for load testing up to 10,000 concurrent users.
Documentation is auto-generated from the OpenAPI spec. Your team can start integrating within hours of deployment. We also provide a Postman environment with pre-configured variables for staging and production.
Why leading API development developers choose IRPR
Not all API teams are the same. Here is the difference.
Generic dev shops assign junior engineers to API work. They write endpoints that break under load and lack proper error handling. You end up paying hourly for debugging and rework.
IRPR assigns senior engineers who have built APIs for 200+ products. We write idempotent endpoints, implement circuit breakers, and add structured logging from day one. Fixed price means no surprises.
- Junior engineers build your API
- Hourly billing with scope creep
- No load testing before launch
- Minimal or missing documentation
- No CI/CD pipeline for API deployments
- No post-launch monitoring setup
- Senior engineers with 10+ years experience
- Fixed price from Roadmap phase (week 2)
- k6 load tests at 10,000 concurrent users
- Auto-generated OpenAPI docs with Swagger
- CI/CD on GitHub Actions with automated tests
- Sentry error tracking and Datadog monitoring
How leading API development developers build your API
Our process is designed for speed and quality.
We start with a Roadmap phase that costs a fixed $8K. In week 1, we define endpoints, data models, and authentication strategy. You get a detailed spec and a fixed quote for the full build.
Then we build in 2-week sprints. You see working endpoints every sprint. We deploy to a staging environment where you can test with your own data. Final delivery includes production deployment and a 30-day warranty.
What ships with your API from leading API development developers
Every project includes these deliverables by default.
You get more than just endpoints. Every API ships with a complete operational package so your team can start using it immediately.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- OpenAPI 3.0 spec with Swagger UI
- Postman collection with environment variables
- k6 load test scripts for 10,000 concurrent users
- Sentry error tracking integration
- Datadog monitoring dashboard
- Rate limiting and authentication (JWT or API keys)
- Structured logging with Winston or Pino
- 30-day warranty with bug fixes
What we ship in this practice.
Payment Processing API for a Fintech Startup
Built a PCI-DSS compliant payment API using Go and Stripe Connect. Handles 50,000 transactions per day. Reduced integration time for merchants from 4 weeks to 3 days.
Patient Data API for a Telehealth Platform
Developed a FHIR-compliant API with Node.js and PostgreSQL. Syncs patient records from 12 EHR systems. Reduced manual data entry by 15 hours per week per clinic.
Product Catalog API for an Ecommerce Brand
Created a GraphQL API with Apollo Server and Elasticsearch. Powers search and recommendations for 200,000 SKUs. Cut page load time from 3 seconds to 400ms.
Real-Time Tracking API for a Logistics Company
Built a gRPC streaming API with Go and Redis. Tracks 10,000 shipments in real time. Reduced customer support calls by 40% with live tracking updates.
User Management API for a SaaS Platform
Developed a REST API with Express.js and MongoDB. Supports multi-tenancy with role-based access control. Onboards 500 new organizations per month without performance degradation.
MLS Integration API for a Real Estate Agency
Built a webhook-based API using Python and FastAPI. Syncs property listings from 3 MLS providers. Reduced listing update latency from 24 hours to 5 minutes.
Why teams hire us.
Fixed price, not hourly billing
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Every developer has 10+ years of experience. We do not staff juniors or offshore teams. Your API is built by engineers who have shipped 200+ products.
8-12 week delivery
We ship production-ready APIs in 8 to 12 weeks. 98% of our projects deliver on time. You get working endpoints every 2 weeks.
Full code ownership
You own every line of code from day one. Source code goes into your private GitHub repo. No licensing fees, no vendor lock-in.
Compliance built in
We build APIs that pass HIPAA, PCI-DSS, and SOC 2 audits. Authentication, encryption, and audit logging are standard in every project.
Post-launch support included
Every project includes a 30-day warranty with bug fixes. We also set up Sentry and Datadog so your team can monitor the API after launch.
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.