REST API Development FirmDevelopment Firm
We build RESTful APIs that scale to millions of requests. Fixed price, senior engineers, and delivery in 8-12 weeks.
IRPR is a REST API development firm that builds production-grade APIs using Node.js, Python (FastAPI, Django REST Framework), Go, and Ruby on Rails. We design RESTful endpoints with OpenAPI 3.0 specs, authentication via JWT and OAuth 2.0, and deploy on AWS, GCP, or Azure.
Every REST API project ships with a fixed price quote during the 2-week Roadmap phase. Typical projects run 8-12 weeks and cost between $80,000 and $250,000 depending on complexity. We handle HIPAA compliance for healthcare APIs, PCI-DSS for fintech, and SOC 2 for SaaS platforms.
Startups hire us to build their first production API. SaaS companies hire us to refactor legacy REST endpoints. Enterprise teams hire us to design APIs that integrate with Salesforce, Stripe, and Twilio. Each engagement includes load testing and a 99.9% uptime SLA.
Types of software we ship.
RESTful API design and development
Design REST endpoints with proper HTTP verbs, status codes, and HATEOAS links using OpenAPI 3.0.
API integration services
Connect your REST API to third-party services like Stripe, Salesforce, Twilio, and HubSpot.
Microservices API development
Build decoupled REST APIs for microservices architectures with Docker, Kubernetes, and message queues.
REST API for mobile backends
Create lightweight REST APIs optimized for iOS and Android apps with Firebase or custom Node.js backends.
Public API development
Develop public-facing REST APIs with rate limiting, API keys, and developer documentation via Swagger.
GraphQL to REST migration
Migrate existing GraphQL endpoints to RESTful APIs while maintaining backward compatibility.
API security and authentication
Implement JWT, OAuth 2.0, and API key authentication with role-based access control (RBAC).
REST API testing and documentation
Generate OpenAPI 3.0 docs, Postman collections, and automated tests with Jest or Pytest.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS
Logistics and Manufacturing
Why choose IRPR as your REST API development firm
We ship APIs that handle millions of requests with 99.9% uptime.
IRPR has delivered REST APIs for 200+ products across 50 countries. Our APIs power mobile apps, SaaS platforms, and enterprise integrations. Every endpoint is documented, tested, and deployed with CI/CD pipelines on GitHub Actions or GitLab CI.
We use load testing tools like k6 and Artillery to verify performance before launch. Our APIs include rate limiting, caching with Redis, and database optimization with PostgreSQL or MongoDB. We also provide Swagger/OpenAPI documentation for your development team.
The difference between IRPR and a generic dev shop
Most agencies skip API design and deliver fragile, undocumented endpoints.
Generic shops often build REST APIs without proper error handling, versioning, or security. They skip load testing and deliver endpoints that break under traffic. Documentation is an afterthought, and the code has no unit tests.
IRPR follows a strict API design-first process. We write OpenAPI 3.0 specs before any code. Every endpoint gets automated tests, rate limiting, and monitoring with Datadog or New Relic. We also include a Postman collection and developer guide.
- No OpenAPI spec before coding
- No load testing
- Missing error handling
- No versioning strategy
- No monitoring or alerting
- Undocumented endpoints
- OpenAPI 3.0 spec first
- k6 load testing on every project
- Standardized error responses
- Semantic versioning with deprecation headers
- Datadog monitoring and PagerDuty alerts
- Swagger docs and Postman collection
How we build your REST API in 4 phases
From idea to production in 8-12 weeks.
IRPR follows a structured process to deliver REST APIs on time and on budget. Each phase has clear deliverables and a fixed price. You know what you get before we start coding.
We start with a 2-week Roadmap phase where we define endpoints, data models, and the OpenAPI spec. Then we build the API in 6-8 weeks with weekly demos. Testing and security audits take 2 weeks. Deployment and documentation wrap up the project.
What ships with every REST API project
Full ownership, documentation, and monitoring included.
You own everything. Every line of code, every document, and every deployment script goes into your repository. There is no vendor lock-in. You can take the API to any team after launch.
IRPR also provides a 30-day post-launch support window. We fix any bugs and help your team with the first integration. After that, we offer ongoing maintenance at a fixed monthly rate.
- Source code in your GitHub or 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 (Jest, Pytest)
- Load test results from k6 or Artillery
- Monitoring dashboard in Datadog or New Relic
- Deployment scripts for AWS, GCP, or Azure
- Developer documentation and onboarding guide
- 30-day post-launch support window
What we ship in this practice.
Patient data API for a telehealth startup
Built a HIPAA-compliant REST API for patient records and video session scheduling. Reduced data retrieval time by 60% using Redis caching. Tech stack: Node.js, Express, PostgreSQL, Twilio Video.
Payment processing API for a fintech platform
Developed a REST API that processes 5,000 transactions per minute with PCI-DSS compliance. Integrated with Stripe and Plaid. Tech stack: Python FastAPI, PostgreSQL, Stripe API, AWS ECS.
Product catalog API for an ecommerce brand
Created a RESTful catalog API serving 2 million product variants with sub-100ms response times. Used Elasticsearch for full-text search. Tech stack: Ruby on Rails, Elasticsearch, Redis, Docker.
User management API for a SaaS platform
Built a multi-tenant REST API with role-based access control and OAuth 2.0 authentication. Handles 50,000 active users. Tech stack: Go, PostgreSQL, JWT, Kubernetes.
Inventory tracking API for a logistics company
Developed a REST API that syncs inventory across 12 warehouses in real time. Reduced stock discrepancies by 90%. Tech stack: Node.js, MongoDB, RabbitMQ, AWS Lambda.
Course delivery API for an edtech platform
Created a REST API for video streaming, quiz submissions, and progress tracking. Supports 10,000 concurrent learners. Tech stack: Django REST Framework, PostgreSQL, AWS CloudFront, Celery.
Why teams hire us.
Fixed price, not hourly
Every REST API project gets a fixed quote during the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the cost before we write a single line of code.
Senior engineers only
IRPR employs senior engineers with 8+ years of experience. No junior developers, no offshore teams. Every API is built by someone who has shipped production-grade REST endpoints before.
API design first
We write an OpenAPI 3.0 spec before any code. This spec becomes the contract between frontend and backend teams. It also generates documentation automatically. No guesswork.
99.9% uptime SLA
Every API we build comes with a 99.9% uptime guarantee. We use load balancers, auto-scaling, and multi-region deployment. If the API goes down, we fix it within 15 minutes.
Full code ownership
You own the source code, the tests, the deployment scripts, and the documentation. There is no proprietary framework or lock-in. You can take the API to any team after launch.
30-day post-launch support
After launch, IRPR provides 30 days of bug fixes and integration support. We help your frontend team connect to the API and answer questions. After 30 days, we offer maintenance at a fixed monthly rate.
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.