Top API Development FirmAPI Development
We build custom APIs that connect your systems and power your products. 8-12 week delivery with fixed pricing, no surprises.
IRPR is a top API development firm that builds custom APIs using Node.js, Go, and Python. We create RESTful, GraphQL, and gRPC APIs with authentication, rate limiting, and complete OpenAPI documentation.
Every API ships in 8-12 weeks at a fixed price of $80K-$250K. Our APIs are built for compliance with HIPAA, PCI-DSS, and SOC 2 standards, so you can launch without worry.
CTOs of SaaS startups hire us when they need a scalable API from day one. Enterprise architects bring us in to integrate legacy systems. Product managers trust us to launch API-first platforms. Founders rely on us to build the backend that powers their mobile app or web product.
Types of software we ship.
REST API Development
Standard CRUD APIs for web and mobile services. Built with Express or FastAPI, includes authentication and versioning.
GraphQL API Development
Flexible data querying APIs using Apollo Server. Reduces over-fetching and speeds up frontend development.
gRPC API Development
High-performance microservice APIs using Protocol Buffers. Ideal for internal systems and low-latency requirements.
WebSocket API Development
Real-time bidirectional APIs for chat, live data, and collaboration. Built with Socket.IO or ws on Node.js.
API Gateway Development
Centralized gateway using Kong or AWS API Gateway. Manages routing, rate limiting, and security for multiple backend services.
Third-Party API Integration
Connect your system to Stripe, Salesforce, HubSpot, and 50+ other APIs. Handles OAuth, webhooks, and data mapping.
API Monetization Platform
Usage tracking, billing, and developer portal for selling API access. Integrates with Stripe for metered billing.
BFF (Backend for Frontend) API
Tailored API layer for each frontend client, reducing complexity. Built with Node.js and optimized for mobile or web needs.
We build for every business type.
enterprise
SaaS companies
mobile apps
integrations
tech platforms
Why choose IRPR as your top API development firm
We deliver production-grade APIs on time, on budget, and with full code ownership.
Every API we ship is documented with OpenAPI, tested with automated suites, and deployed to a scalable cloud infrastructure. Our process eliminates unknowns: you get a fixed price and a clear timeline before any code is written.
Our clients range from early-stage startups to Fortune 500 companies. They come to us because they need an API that works under load, passes security audits, and can be maintained by their own team after launch.
How we differ from other API development firms
Most agencies bill hourly and deliver late. We fix the price and timeline upfront.
When you hire a generic dev shop, you often get vague timelines, surprise invoices, and code that doesn't scale. IRPR has built over 200 APIs with a standardized process that eliminates those risks.
We assign senior engineers only, no junior contractors. Every API goes through a spec review, a security audit, and a load test before you pay a single dollar past the Roadmap phase.
- Vague timelines and constant delays
- Hourly billing that grows without notice
- No API documentation included
- Security review skipped or rushed
- No load testing or scalability plan
- Code with no tests or CI/CD
- Fixed price with concrete 8-12 week timeline
- No hidden fees or hourly surprises
- Auto-generated OpenAPI docs with Swagger UI
- OWASP security audit before launch
- Load tested to handle peak traffic (e.g., 10,000 concurrent users)
- Full test suites, CI/CD pipeline (GitHub Actions)
How we build your API in 4 phases
Our process removes guesswork. You know what ships and when.
Each phase has a clear deliverable. We never move to the next phase without your written approval. This keeps the project on track and within the fixed budget.
Because we are a top API development firm with 200+ projects, we have refined this process to avoid common pitfalls like scope creep and misaligned expectations.
What you get when you ship with IRPR
Every project includes these deliverables from day one.
There are no add-ons or hidden line items. Everything listed below is included in the fixed price.
- Full source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- Auto-generated API documentation (Swagger/OpenAPI)
- Sentry error tracking
- Cloud infrastructure (AWS or GCP)
- Load test results report
- Security audit report
- Postman collection
- API usage analytics dashboard
- 1 month post-launch support with SLA
What we ship in this practice.
Real-time chat API for a mobile health app
Built a WebSocket API on Node.js with Redis pub/sub. Reduced latency by 300ms and handled 10,000 concurrent users. Industry: healthcare.
Payment gateway integration API for ecommerce
Integrated Stripe and PayPal into a single REST API. Cut transaction failures by 40% and saved the client 20 hours of manual reconciliation each week. Tech stack: Node.js, Express, Stripe SDK.
GraphQL API for a SaaS CRM
Replaced legacy REST endpoints with GraphQL on Apollo Server. Frontend queries became 5x faster, and the client eliminated 80% of their boilerplate code. Tech stack: Apollo Server, PostgreSQL, Redis.
API gateway for a fintech platform
Built an API gateway using Kong to manage 50+ microservices with OAuth2. Achieved 99.99% uptime and simplified security audits. Tech stack: Kong, JWT, AWS Lambda.
Data pipeline API for logistics
Created a REST API to ingest shipment data from IoT devices. Processed 1 million events per day, reducing manual data entry by 15 hours per week. Tech stack: Go, gRPC, Apache Kafka.
Booking API for a travel marketplace
Developed a GraphQL API that connects hotels, airlines, and payment providers. Enabled real-time availability checks and cut booking time by 30%. Tech stack: Hasura, PostgreSQL, Stripe.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote after our Roadmap phase in week 2. No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Our team consists of senior developers with 8+ years of experience. No junior contractors or offshore interns touch your code.
8-12 week delivery
We ship production-ready APIs in 8-12 weeks. Our process is designed to hit that timeline with 98% on-time record across 200+ projects.
Full code ownership
You own 100% of the source code, documentation, and infrastructure. We deliver everything in your GitHub repo with no licensing restrictions.
Post-launch support included
Every project includes 1 month of post-launch support with a 4-hour SLA for critical issues. We stay until your team is comfortable.
Compliance ready
We build APIs that meet HIPAA, PCI-DSS, SOC 2, and FERPA requirements. Over 30 of our past projects were for regulated industries.
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.