Top API Development DevelopersDevelopment Developers
We build production-grade APIs that power your apps and integrations. Fixed price, delivered in 8-12 weeks.
IRPR builds custom APIs for companies that need reliable, scalable integrations. We use Node.js, Python, Go, and .NET Core to create REST, GraphQL, and gRPC endpoints with OpenAPI specs and automated testing.
Every API project ships with full documentation, CI/CD pipelines, and monitoring. Delivery takes 8-12 weeks for an MVP, with fixed pricing from $80K to $250K depending on complexity. We handle compliance for HIPAA, PCI-DSS, and SOC 2.
You hire us if you are a CTO needing a secure backend for a SaaS platform, a product manager integrating third-party data sources, a startup founder building a marketplace with API-first architecture, or a healthcare IT director requiring HIPAA-compliant data exchange.
Types of software we ship.
REST API Development
Build stateless HTTP APIs with clear endpoints and versioning. Uses Express.js, FastAPI, or ASP.NET Core.
GraphQL API Development
Create flexible queries and mutations with Apollo Server or Hasura. Reduces over-fetching for mobile and web apps.
gRPC API Development
High-performance remote procedure calls using Protocol Buffers. Ideal for microservices and low-latency systems.
API Integration Services
Connect your app to Stripe, Salesforce, HubSpot, or custom endpoints. Handles authentication, rate limits, and data mapping.
API Gateway Development
Deploy a central gateway with Kong, AWS API Gateway, or NGINX. Manages routing, throttling, and authentication for multiple services.
Webhook Development
Build event-driven webhooks that push data to external systems. Uses AWS SQS, RabbitMQ, or Kafka for reliability.
API Security Audit
Review your existing API for OWASP Top 10 vulnerabilities. Implements OAuth 2.0, JWT validation, and rate limiting.
API Documentation Portal
Generate interactive docs with Swagger UI, Redoc, or Stoplight. Includes Postman collections and integration guides.
We build for every business type.
SaaS platforms
Fintech
Healthcare
Ecommerce
Logistics
Why Top API Development Developers Matter
APIs are the backbone of modern software, and poorly built ones cost you time and money.
A well-designed API reduces integration time for your partners and internal teams. IRPR has shipped over 200 API projects across 50 countries, with an average delivery of 10 weeks. We follow OpenAPI 3.0 standards and include automated tests that cover 90%+ of endpoints.
Our top API development developers use tools like Postman for testing, Datadog for monitoring, and GitLab CI for deployment. Every project includes a rate-limiting strategy, error handling with structured responses, and a developer portal with sample code.
How IRPR Beats Generic Dev Shops
Most agencies promise APIs but deliver half-baked endpoints with no docs or monitoring.
Generic shops often skip contract testing, leave endpoints unversioned, and hand you a single README file. IRPR builds APIs that your team can actually maintain and extend.
We ship with OpenAPI specs, automated Postman collections, and Datadog dashboards. Every endpoint has versioning from day one, and we include a migration plan for breaking changes.
- No API contract upfront
- Endpoints without versioning
- No automated tests
- Sparse documentation
- No monitoring or alerting
- Unclear pricing, hourly billing
- OpenAPI 3.0 contract before coding
- Versioned endpoints (v1, v2)
- 90%+ test coverage with Jest/Pytest
- Interactive Swagger docs + Postman collections
- Datadog monitoring with PagerDuty alerts
- Fixed price from Roadmap phase
Our API Development Process
We follow a 4-phase process that turns your idea into a production-ready API.
Phase 1 is the Idea phase where we define the API contract and data model. Phase 2 is the Roadmap where we produce a fixed price and timeline. Phase 3 is Product where we build, test, and deploy. Phase 4 is Release where we hand over documentation and monitoring.
Each phase includes a review milestone. You see a working API endpoint by week 3, a complete MVP by week 10, and full deployment with CI/CD by week 12.
What Ships With Every API Project
You get more than code. Every project includes these deliverables by default.
No hidden scope. These items are part of our standard API development package. You can add more integrations or endpoints with a change order.
- Source code in your private GitHub/GitLab repo
- OpenAPI 3.0 specification file
- Postman collection with example requests
- CI/CD pipeline on GitHub Actions or GitLab CI
- Automated unit and integration tests (90%+ coverage)
- Dockerized development environment
- Datadog monitoring dashboard and alerts
- Rate limiting and authentication (JWT or OAuth 2.0)
- Error handling with structured JSON responses
- Deployment guide and runbook
What we ship in this practice.
SaaS Multi-tenant API
Built a multi-tenant REST API for a B2B SaaS platform using FastAPI and PostgreSQL. Reduced onboarding time for new tenants from 2 weeks to 2 days. Tech stack: FastAPI, PostgreSQL, Redis, Docker.
Fintech Payment Integration API
Integrated Stripe and Plaid for a fintech startup processing $10M in monthly transactions. Achieved 99.99% uptime with automatic retries. Tech stack: Node.js, Stripe API, Plaid API, AWS Lambda.
Healthcare FHIR API
Developed a HIPAA-compliant FHIR API for a hospital network to exchange patient data with 5 EHR systems. Reduced data entry errors by 80%. Tech stack: .NET Core, FHIR R4, Azure SQL, Azure API Management.
Ecommerce Product Catalog API
Created a GraphQL API for an ecommerce brand with 50,000 SKUs. Reduced page load time from 3 seconds to 400ms. Tech stack: Apollo Server, MongoDB, Redis, AWS AppSync.
Logistics Fleet Tracking API
Built a real-time tracking API for a logistics company with 200 trucks. Integrated GPS data and Google Maps API to provide live ETAs. Reduced customer support calls by 60%. Tech stack: Go, WebSockets, Google Maps API, AWS IoT Core.
Real Estate MLS API
Developed a REST API to aggregate MLS listings from 3 regional databases for a real estate platform. Increased listing freshness from daily updates to real-time. Tech stack: Python, Django, PostgreSQL, Celery.
Why teams hire us.
Fixed Price, Not Hourly
Every API project gets a fixed quote during the Roadmap phase. No hourly billing, no surprise invoices, no scope creep charges.
Senior Engineers Only
Our team averages 10+ years of experience. We do not outsource or hire juniors. Every API is built by a senior developer who understands distributed systems.
Full Ownership
You own all source code, documentation, and infrastructure configs from day one. No licensing fees, no vendor lock-in.
Compliance Built In
We handle HIPAA, PCI-DSS, and SOC 2 requirements as part of the standard build. Our APIs include audit logs, encryption at rest and in transit, and access controls.
Monitoring and Support
Every API ships with Datadog monitoring, PagerDuty alerts, and a 30-day post-launch support period. We fix critical bugs within 4 hours.
Proven Track Record
We have shipped 200+ products across 50 countries with a 98% on-time delivery rate. Our clients include startups, mid-market companies, and Fortune 500 firms.
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.