Affordable REST API Development AgencyREST API
We build production-ready REST APIs for $50K-$150K. 8-12 week timeline with a dedicated senior engineer.
IRPR builds affordable REST APIs using Node.js (Express, Fastify), Python (FastAPI, Flask), and Go (Gin). Every API includes OpenAPI 3.0 documentation, JWT authentication, and rate limiting out of the box.
We deliver a production-ready REST API in 8-12 weeks for a fixed price between $50,000 and $150,000. The price is locked during the Roadmap phase (week 2). You get full source code, CI/CD pipeline, and deployment scripts.
Startups hire us to build their first public API for $50K. Mid-market companies use us to replace legacy SOAP services. Enterprise teams engage us for microservice APIs that handle 10,000+ requests per second.
Types of software we ship.
Public REST API
Expose your data or functionality to third-party developers. Includes API key management, rate limiting, and developer portal.
Private REST API
Internal APIs for your frontend, mobile apps, or partner integrations. Secured with OAuth2 and RBAC.
Microservice REST API
Decoupled services communicating over REST. Each service has its own database and can scale independently.
CRUD REST API
Standard create, read, update, delete endpoints with pagination, filtering, and sorting. Built with PostgreSQL or MongoDB.
GraphQL API
Flexible alternative to REST with a single endpoint. Clients query exactly the data they need. Built with Apollo or Hasura.
Webhook API
Send real-time notifications to external services when events occur. Supports retries, idempotency, and delivery logs.
Real-time REST API
Combine REST endpoints with WebSocket connections for live updates. Used in chat, dashboards, and collaboration tools.
Third-party Integration API
Connect your system to Stripe, Salesforce, Shopify, or any external REST API. Includes data transformation and error handling.
We build for every business type.
Ecommerce
Healthcare
Fintech
SaaS
Logistics
Why choose IRPR for affordable REST API development
We deliver production-grade REST APIs at a fixed price, on time, with full code ownership.
Every API we build includes OpenAPI documentation, automated tests, and a CI/CD pipeline. Our senior engineers have shipped over 200 products across 50 countries. We use proven frameworks like FastAPI, Express, and Gin to keep development fast and costs low.
Our fixed-price model means you know the exact cost from week 2. No hourly billing surprises. The average project delivers in 10 weeks. We also handle compliance: HIPAA, PCI-DSS, SOC 2, and GDPR when needed.
How IRPR is different from other API development agencies
Most agencies charge by the hour and deliver late. IRPR does the opposite.
We have seen projects from generic dev shops that take 6 months and cost double the original estimate. They use junior developers and don't write automated tests. The result is a fragile API that breaks with every change.
IRPR assigns a senior engineer (10+ years experience) to every project. We write unit tests, integration tests, and load tests. Every API ships with a CI/CD pipeline on GitHub Actions. Our on-time delivery rate is 98%.
- Hourly billing with no cap
- Junior developers doing the work
- No automated tests
- No documentation until the end
- Timeline slips by 50% or more
- You don't own the full code
- Fixed price locked at week 2
- Senior engineer (10+ years) on every project
- Unit, integration, and load tests written first
- OpenAPI 3.0 documentation auto-generated
- 98% on-time delivery
- Full source code in your repo
Our REST API development process
We follow a 4-phase process: Idea, Roadmap, Product, Release.
Phase 1 (Idea): We understand your business need, data model, and integration points. This takes 1 week.
Phase 2 (Roadmap): We produce a detailed plan with endpoint list, database schema, and fixed price. This takes 1 week.
Phase 3 (Product): We build the API in 2-week sprints. You see working endpoints every sprint. This takes 6-10 weeks.
Phase 4 (Release): We deploy to production, set up monitoring (Sentry, Datadog), and hand over documentation.
What ships with every REST API project
You get more than just endpoints. Every delivery includes production-grade infrastructure.
We ship everything needed to run and maintain your API in production. No hidden dependencies on our team. You can take over development immediately after launch.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Dockerized deployment scripts
- OpenAPI 3.0 documentation (Swagger UI)
- Postman collection for testing
- Load test results (k6 or Artillery)
- Sentry error tracking
- Datadog or CloudWatch monitoring dashboard
- Database migration scripts
- Admin panel (if needed) with user management
What we ship in this practice.
Ecommerce order API for a mid-market retailer
Built a REST API to process 50,000 orders per day. Integrated with Shopify and Stripe. Reduced order processing time by 70%. Stack: Node.js, Express, MongoDB, Redis.
HIPAA-compliant patient data API for a telehealth startup
Developed a REST API for patient records, appointment scheduling, and video call metadata. Passed HIPAA audit in week 8. Stack: Python FastAPI, PostgreSQL, AWS HealthLake.
Payment processing API for a fintech company
Created a PCI-DSS compliant API handling $2M in monthly transactions. Built with idempotency keys and retry logic. Stack: Go, Gin, PostgreSQL, Stripe Connect.
Multi-tenant SaaS backend API
Designed a REST API with tenant isolation, usage metering, and role-based access. Supports 500+ tenants. Stack: Node.js, Fastify, PostgreSQL, Redis.
Real-time tracking API for a logistics platform
Built WebSocket-enhanced REST endpoints for live GPS tracking. Handles 10,000 concurrent connections. Reduced latency from 2 seconds to 200ms. Stack: Python FastAPI, WebSockets, Redis, AWS IoT.
Third-party integration API for a CRM provider
Developed a unified REST API to connect with Salesforce, HubSpot, and Zoho. Transforms data formats on the fly. Saved client 40 hours of manual data entry per week. Stack: Node.js, Express, MongoDB, Bull queue.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. Typical projects range from $50K to $150K.
Senior engineers only
We assign a single senior engineer (10+ years experience) to your project. No junior developers, no offshore teams. Our engineers have built APIs for companies like Stripe and Airbnb.
Full code ownership
You own every line of code from day one. We put the source code in your GitHub repo. No licensing, no vendor lock-in, no recurring fees.
Compliance built in
We build APIs that meet HIPAA, PCI-DSS, SOC 2, and GDPR requirements. Our engineers follow security best practices: encryption at rest, TLS 1.3, and OWASP top 10 prevention.
Fast delivery, on time
Average delivery time is 10 weeks. We use 2-week sprints with working demos. 98% of our projects ship on or before the deadline.
Async-first communication
We work across time zones with daily async updates via Slack or Linear. You get a progress report every morning. No endless meetings.
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.