Affordable REST API Development FirmDevelopment Firm
We build custom REST APIs for $80K-$250K. Ship in 12 weeks with full code ownership.
IRPR is an affordable REST API development firm. We build APIs in Node.js, Python (FastAPI), and Go (Gin). Every API includes OpenAPI 3.0 docs and a Postman collection out of the box.
We ship production-ready APIs in 12 weeks with a fixed price of $80K to $250K. Our APIs pass HIPAA, PCI-DSS, and SOC 2 audits. You get the source code, CI/CD pipeline, and monitoring from day one.
We work with startup CTOs who need a scalable API for their MVP, SaaS founders who need to replace a slow monolith, and enterprise teams who need a secure data layer for healthcare or fintech products.
Types of software we ship.
REST API for SaaS
Multi-tenant REST API with Stripe subscription support and rate limiting per tenant. Built with FastAPI + PostgreSQL.
Payment Gateway API
PCI-compliant API wrapping Stripe, Braintree, or Adyen. Includes idempotency keys and webhook replay.
Healthcare FHIR API
HIPAA-compliant REST API for patient data exchange. Integrates with Epic and Cerner via standard FHIR R4.
Internal Microservice API
Lightweight REST API for service-to-service communication. Uses gRPC for high-throughput and NATS for event streams.
Third-Party Integration API
Single REST API that aggregates data from Salesforce, HubSpot, and Shopify into one JSON response.
Admin Dashboard API
REST API for a React admin panel with filtering, sorting, pagination, and role-based access control (RBAC) using JWT.
Real-Time API with WebSockets
REST + WebSocket hybrid API for live data sync. Uses Redis pub/sub and Socket.IO for low-latency updates under 50ms.
Data Export / ETL API
REST endpoint that generates CSV, JSON, or Parquet exports from your database. Supports scheduled exports via cron jobs.
We build for every business type.
SaaS companies
Fintech
Healthcare
Ecommerce
Logistics and travel
Why choose an affordable REST API development firm
Most API projects fail because of scope creep and hourly billing. We fix both.
IRPR is an affordable REST API development firm that works on fixed price. You know the cost before the first line of code. Our average API project costs $80K and ships in 12 weeks. We have built 200+ APIs for clients in 50 countries.
Every API comes with automated tests covering 90%+ code paths, OpenAPI 3.0 documentation, and a CI/CD pipeline on GitHub Actions. We use Sentry for error tracking and Datadog for performance monitoring. You get full source code with no license fees.
The difference between generic dev shops and a real API firm
Not every development company can build a compliant, scalable API. Here is why IRPR is different.
Generic dev shops often quote hourly and start coding without a clear contract. You end up with a messy codebase, no documentation, and surprise invoices. That is not how an affordable REST API development firm should work.
IRPR starts with a Roadmap phase in week 2. We write the spec, the endpoint list, and the data model. You approve it. Then we build. Fixed price. No surprises. Every API ships with documentation, tests, and monitoring.
- Hourly billing with no cap
- No written API contract
- Code without unit tests
- No documentation delivered
- Unknown compliance posture
- No monitoring setup
- Fixed price from $80K
- Roadmap contract in week 2
- 90%+ test coverage
- OpenAPI 3.0 docs included
- HIPAA/PCI/SOC 2 ready
- Sentry + Datadog configured
How we build your affordable REST API in 12 weeks
Our process is repeatable, transparent, and proven across 200+ projects.
We follow a 4-phase process: Idea, Roadmap, Product, Release. Each phase has a clear gate and deliverable. You know exactly where you stand at every step.
The Roadmap phase takes 2 weeks and produces a full API contract: endpoints, data model, authentication, and pricing. Once approved, we code the API in 8-10 weeks and launch with a Release phase that includes load testing and go-live support.
What ships with your REST API
Every project delivers a complete, production-ready system, not just code.
You get everything you need to run and maintain your API without being locked into our team. No hidden costs. No recurring fees.
All deliverables are provided in your own Git repository with readme files and setup scripts.
- Source code in your private GitHub/GitLab repo
- OpenAPI 3.0 spec as a single YAML file
- Postman collection with all endpoints tested
- CI/CD pipeline on GitHub Actions or GitLab CI
- Unit test suite with 90%+ coverage (Jest or Pytest)
- Database migration scripts (Alembic or Prisma)
- Docker compose file for local development
- Sentry error tracking configured
- Rate limiting and authentication (JWT or API keys)
- k6 load test scripts for performance baseline
What we ship in this practice.
Subscription Billing API for a SaaS startup
Built a REST API that handles subscription creation, proration, and invoice generation via Stripe. Reduced manual billing errors by 100%. Tech stack: FastAPI, PostgreSQL, Stripe API, Celery for async invoice generation.
Patient Data API for a telehealth platform
Developed a HIPAA-compliant REST API to exchange EHR data with Epic and Cerner. Cut data retrieval time from 3 hours to 12 seconds. Tech stack: Node.js, FHIR R4, PostgreSQL, Redis cache.
Order Sync API for a multi-channel retailer
Created a REST API that syncs orders between Shopify, Amazon, and a custom ERP. Eliminated manual order entry for 20 staff hours per week. Tech stack: Python FastAPI, Shopify API, Amazon SP-API, MySQL.
Fraud Detection API for a fintech company
Built a real-time REST API that scores transactions for fraud risk using a rules engine. Reduced false positives by 40%. Tech stack: Go, Redis, PostgreSQL, custom ML model endpoint.
Inventory Lookup API for a logistics provider
Delivered a REST API that aggregates inventory from 8 warehouses and returns live stock levels. Reduced query time from 6 seconds to 300ms. Tech stack: Node.js, Express, MongoDB, Redis, AWS Lambda.
Course Enrollment API for an edtech platform
Developed a FERPA-compliant REST API for student enrollment, grade tracking, and content delivery. Handles 5000 concurrent users with 200ms response time. Tech stack: Python Django REST Framework, PostgreSQL, Stripe, Redis.
Why teams hire us.
Fixed price, not hourly billing
Every API project has a fixed quote from the Roadmap phase. No hourly billing. No surprise invoices. 98% of our projects deliver on time and on budget.
12-week delivery, not 6 months
We ship production-ready APIs in 12 weeks on average. Our process is optimized for speed: 2 weeks for planning, 8-10 weeks for building, 2 weeks for launch.
HIPAA, PCI, SOC 2 compliance built in
We have built APIs for healthcare (HIPAA), fintech (PCI-DSS), and SaaS (SOC 2) companies. Our APIs pass audits. We set up encryption, logging, and access controls by default.
You own the code, always
No licenses, no royalties, no lock-in. You get full source code in your repository. You can run it with any team after we leave.
200+ APIs shipped to 50 countries
Our team has shipped 200+ API projects across 50 countries. We know what works at scale and what breaks in production.
Senior engineers only, no juniors
Every API is built by a senior engineer with 8+ years of experience. We do not outsource to junior developers. Your API gets a dedicated architect.
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.
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