Affordable REST API Development DevelopersREST API
Hire affordable REST API development developers who ship in 8-12 weeks. Fixed price from $80K, no hourly billing.
IRPR builds affordable REST APIs using Node.js, Express, Python FastAPI, Go Fiber, and Django REST Framework. We design endpoints with OpenAPI 3.0 specs and secure them with OAuth 2.0, JWT, and API keys.
Each API ships with automated testing (Postman collections, Jest/Pytest tests) and deployment on AWS ECS or Azure App Service. Timeline is 8-12 weeks for a full MVP. Fixed price range is $80K-$250K depending on endpoint count and third-party integrations. We comply with HIPAA, PCI-DSS, and SOC 2.
Startup CTOs hire us to replace slow in-house builds. Product managers at mid-market firms need a scalable API to connect their SaaS platform to payment gateways or CRM systems. Enterprise architects choose us to modernize legacy SOAP APIs into RESTful services in 12 weeks.
Types of software we ship.
Payment gateway REST API
Integrates with Stripe, Braintree, or Adyen. Handles idempotent charges, refunds, and webhook verification.
User management REST API
Handles signup, login, password reset, role-based access. Uses Auth0 or Firebase Auth for token generation.
Inventory REST API
Exposes real-time stock levels, low-stock alerts, and warehouse transfers. Connects to Shopify or NetSuite via webhooks.
Healthcare REST API (FHIR)
Maps HL7 v2 messages to FHIR R4 resources. Supports patient data exchange with EHRs like Epic or Cerner.
Ecommerce product REST API
Serves product catalog, search, pricing tiers, and variant management. Uses Elasticsearch for full-text search.
Analytics data REST API
Returns aggregated query results from BigQuery or Snowflake. Supports pagination, filtering, and export to CSV or JSON.
Notification REST API
Sends push, SMS, email via Twilio and SendGrid. Queues messages with RabbitMQ and retries on failure.
REST API for mobile app backend
Provides a single entry point for iOS and Android apps. Includes rate limiting, caching (Redis), and offline sync support.
We build for every business type.
healthcare
fintech
ecommerce
SaaS
logistics & travel
Why you need affordable REST API development developers
Building internal APIs costs $120K-$350K at most agencies. IRPR delivers for $80K-$250K with a fixed price and no surprises.
IRPR senior engineers write REST APIs in Node.js with Express, Python FastAPI, or Go Fiber. Each endpoint is documented in OpenAPI 3.0 and tested with 90%+ code coverage. We include rate limiting, authentication (OAuth 2.0, JWT), and error logging via Sentry.
Our team ships over 200 microservices across industries like healthcare and fintech. For example, a medical data exchange API serving 50,000+ patients in compliance with HIPAA. Or a payment gateway REST API processing $2M/month in transactions for a SaaS startup.
Generic agencies vs IRPR for REST API development
Most dev shops bill hourly and rewrite your API twice before launch. IRPR delivers a production-ready REST API in 8-12 weeks at a fixed price.
Generic agencies often start without a spec. They change requirements mid-build, bill for overtime, and deliver undocumented endpoints. Many use cowboy coding — no versioning, no automated tests, no CI/CD pipeline. You end up paying $150K+ for an API that breaks in production.
IRPR writes a technical spec in week 2 during the Roadmap phase. We version every endpoint (v1, v2), enforce rate limiting with Redis, and set up CI/CD with GitHub Actions. Every API includes Swagger UI for testing and Sentry for error tracking.
- Hourly billing with no cap
- No written API specification
- No automated tests
- Unversioned endpoints
- No rate limiting or caching
- No CI/CD or monitoring
- Fixed price from $80K
- OpenAPI 3.0 spec before coding
- 90%+ test coverage with Pytest/Jest
- Versioned endpoints (v1, v2)
- Redis caching + rate limiting
- GitHub Actions CI/CD + Sentry alerts
How IRPR builds your REST API in 4 phases
We ship a production-ready REST API in 8-12 weeks using a fixed-price framework divided into four phases.
In the Idea phase (week 1), we define your data model, endpoints, and authentication flow. The Roadmap phase (week 2) produces a detailed quote, timeline, and OpenAPI 3.0 specification. Product phase (weeks 3-10) builds the API with 90% test coverage and CI/CD. Release phase (weeks 11-12) deploys to production and monitors for 30 days.
After launch, we hand over source code, documentation, and dashboards. You own everything. No ongoing commitments.
What ships with every REST API from IRPR
You get more than endpoints. Every project includes production-ready infrastructure, documentation, and monitoring.
Every REST API comes with source code in your GitHub or GitLab repo, an OpenAPI 3.0 spec in YAML, and a CI/CD pipeline on GitHub Actions. We include a Postman collection for manual testing and Sentry for error monitoring. All secrets are stored in AWS Secrets Manager or Azure Key Vault.
- Source code in your repository (GitHub/GitLab)
- OpenAPI 3.0 specification document
- CI/CD pipeline using GitHub Actions
- Docker container image for each service
- Postman collection for endpoint testing
- Sentry error tracking dashboard
- AWS Secrets Manager or Azure Key Vault integration
- Rate limiting with configurable thresholds (Redis)
- Health check endpoint and monitoring alerts
- 30-day production support post-launch
What we ship in this practice.
Payment processing API for a fintech startup
Built a REST API that wires Stripe checkout, KYC verification, and bank transfers. Handles 2,000 requests/minute with idempotency keys. Tech stack: Node.js, Express, Stripe, PostgreSQL. Reduced transaction failures by 40%.
Patient data exchange API for a telemedicine platform
Created a FHIR R4 REST API that syncs patient records with Epic EHR. Processes 10,000+ FHIR transactions daily. Tech stack: Python FastAPI, FHIR server, Kafka. Cut data entry time by 12 hours per week per clinic.
Inventory sync API for a multi-channel ecommerce brand
Developed a REST API that syncs inventory between Shopify, Amazon, and a warehouse database. Reduces overselling by 95%. Tech stack: Python Django REST Framework, Redis, RabbitMQ, Shopify GraphQL.
Booking API for a travel marketplace
Built a RESTful API for hotel room booking with real-time availability and cancellation logic. Handles 500 bookings/hour. Tech stack: Go Fiber, PostgreSQL, Stripe. Decreased booking errors by 80%.
Subscription management API for a SaaS platform
Developed a REST API that manages plan upgrades, downgrades, prorated billing, and usage limits. Supports 10,000 active subscribers. Tech stack: Node.js, Express, Stripe, MongoDB. Reduced churn by 15% with usage alerts.
Lead generation API for a real estate CRM
Created a REST API that pulls MLS listings, enriches leads with property data, and automates email follow-ups. Processes 50,000 listings daily. Tech stack: Python FastAPI, PostgreSQL, SendGrid. Increased lead conversion by 25%.
Why teams hire us.
Fixed price, not hourly
Every REST API project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers with 10+ years experience
Our team averages 12 years in backend development. You work directly with engineers who have shipped production APIs for Stripe, Epic, and AWS.
OpenAPI spec before coding starts
We write your REST API specification in OpenAPI 3.0 during week 2. You review and approve every endpoint before we write a single line of code.
Compliance built in (HIPAA, PCI-DSS, SOC 2)
We design APIs for healthcare, fintech, and enterprise with encryption at rest and in transit. Audit logs are standard. We pass 3rd-party pen tests.
You own the code and infrastructure
After launch, we transfer full ownership: source code, Docker images, CI/CD pipelines, AWS/Azure accounts. No lock-in, no license fees.
Start in 2 weeks, ship in 8-12
We kick off within 2 business days of signing. A standard REST API MVP is production-ready in 8-12 weeks. 98% of our projects ship on time.
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.