Leading FastAPI Development StudioFastAPI Studio
We build production-grade APIs with FastAPI. 200+ products shipped in 12 weeks or less.
IRPR is a leading FastAPI development studio. We use FastAPI with SQLAlchemy, Redis, Celery, and PostgreSQL to build high-performance backends. Every project includes async endpoints, automatic OpenAPI docs, and Pydantic validation.
We ship a production-grade FastAPI application in 8-12 weeks. Fixed pricing ranges from $80K to $250K depending on scope. We comply with HIPAA, PCI-DSS, and SOC 2. Our engineers have built over 200 products across 50 countries.
Startups hire us to build their core API before a Series A. Enterprises hire us to replace legacy Django or Flask backends. SaaS companies hire us to add real-time data processing. Healthcare companies hire us to build HIPAA-compliant APIs.
Types of software we ship.
RESTful API
Build a clean, versioned REST API with FastAPI. Auto-generated OpenAPI docs, OAuth2/JWT auth, and rate limiting.
GraphQL API
Expose a GraphQL layer using Strawberry or Graphene on FastAPI. N+1 queries gone with DataLoader. Subscriptions for real-time data.
Microservices Backend
Split your monolith into FastAPI microservices with RabbitMQ or Kafka. Each service scales independently. Sentry logging included.
Real-time Data Pipeline
Process streams with FastAPI + WebSockets. Ingest from Kafka, process with Celery, persist to PostgreSQL. Latency under 50ms.
Admin Dashboard API
Serve internal tools with FastAPI + SQLAdmin. Dashboards with charts, export to CSV/PDF, role-based access control.
Mobile App Backend
Power iOS/Android apps with FastAPI. Firebase Cloud Messaging, Apple Push Notifications, file uploads to S3.
Payment Processing API
Handle Stripe, PayPal, or Adyen with FastAPI. Idempotency keys, webhook verification, 3D Secure flows.
AI/ML Model Serving API
Serve trained models via FastAPI endpoints. Integrate with Hugging Face, TensorFlow, or PyTorch. Async inference with Celery.
We build for every business type.
SaaS and Tech Companies
Healthcare
Fintech
Ecommerce and Retail
Logistics and Manufacturing
Why IRPR is a Leading FastAPI Development Studio
We have shipped over 200 FastAPI projects for startups and enterprises worldwide.
Our senior engineers write asynchronous FastAPI code from day one. Every endpoint uses async def and Pydantic v2 for validation. We set up Alembic migrations, Celery background tasks, and Redis caching before the first user hits the API.
We test every endpoint with pytest and httpx. Code coverage is always above 90%. We deploy with Docker on AWS ECS or Railway. Sentry and DataDog monitor production. You get a full CI/CD pipeline in your own GitHub repo.
The Difference Between a Generic Dev Shop and a Leading FastAPI Studio
Most agencies rush through planning and ship buggy code. IRPR does the opposite.
Generic shops start coding without a spec. Then scope creeps, deadlines slip, and you own technical debt. They often use older frameworks like Flask or Tornado because they lack FastAPI expertise.
IRPR begins with a detailed Roadmap in week 2. You get a fixed price, a clear timeline, and an async-first architecture. We write tests as we code. Every project includes Sentry logging, CI/CD, and a handoff document.
- Starts coding without a spec
- Uses Flask or Django rest
- No async endpoints
- Scope creep on hourly billing
- Zero automated tests
- No CI/CD pipeline
- Roadmap delivered in week 2
- FastAPI with async def throughout
- Pydantic v2 validation
- Fixed price, no hourly billing
- pytest coverage above 90%
- GitHub Actions CI/CD by default
Our FastAPI Development Process
We follow a four-phase process to deliver production-ready APIs in 8-12 weeks.
The Idea phase is short. You tell us your business goal, and we recommend the best architecture. We decide on async endpoints, database models, and third-party integrations before writing code.
The Roadmap phase produces a written specification with a fixed price. You approve it, and we start building. Testing and deployment are part of every sprint.
What You Get When You Hire Our FastAPI Studio
Every project ships with a standard set of deliverables that make your team productive immediately.
You own the full source code from day one. We do not use proprietary frameworks. The code is in your GitHub account. We configure CI/CD with GitHub Actions. Your team can deploy instantly.
We include Sentry error tracking, DataDog APM monitoring, and a Postman collection for testing. You also get a handoff document that explains every endpoint and decision.
- Source code in your GitHub repo
- CI/CD with GitHub Actions
- Sentry error tracking
- DataDog APM monitoring
- Postman collection with tests
- Alembic database migrations
- Docker Compose for local dev
- Handoff document with architecture
- 30-day post-release support
- Pydantic v2 schemas
What we ship in this practice.
SaaS API for a B2B Analytics Platform
Built a multi-tenant FastAPI backend that ingests 1M events/day. Used Celery for async processing and Redis for caching. Reduced query latency from 800ms to 30ms. Tech stack: FastAPI, PostgreSQL, Redis, Celery, AWS ECS.
HIPAA-Compliant Patient Data API
Developed a FastAPI backend for a telemedicine startup. Implemented BAA with AWS, encrypted PHI at rest, and audit logging. Passed HIPAA audit in week 10. Tech stack: FastAPI, PostgreSQL, Redis, AWS KMS.
Real-Time Trading Backend for Fintech
Engineered a WebSocket-based FastAPI service that streams stock prices with <5ms latency. Integrated with Alpaca API and Stripe for payments. Tech stack: FastAPI, WebSockets, RabbitMQ, Redis, PostgreSQL.
Headless Commerce API for an Ecommerce Brand
Created a FastAPI backend that syncs inventory across Shopify and Amazon. Handles 50K orders/day. Reduced manual data entry by 8 hours/week. Tech stack: FastAPI, PostgreSQL, Stripe, Shopify API.
Real Estate MLS Integration API
Built a FastAPI service that aggregates MLS listings from 5 providers. Normalizes data and exposes a search API. Used Elasticsearch for full-text search. Tech stack: FastAPI, Elasticsearch, PostgreSQL, Redis.
EdTech Learning Management Backend
Developed a FastAPI backend for an online course platform. Supports 100K concurrent users with async endpoints. Integrated with Zoom API for live classes. Tech stack: FastAPI, PostgreSQL, Redis, Celery, S3.
Why teams hire us.
Senior FastAPI engineers only
Every engineer on your project has 8+ years of Python experience. We do not outsource or use juniors. You talk directly to the engineer building your code.
Fixed price, not hourly
We quote a fixed price after the Roadmap phase. No hourly billing. No surprise invoices. Scope changes are estimated separately before work begins.
Production-ready from sprint 1
Week 3 you see working endpoints with tests. We deploy to a staging environment. Your stakeholders can test the API while we build.
Full ownership of code
The code lives in your GitHub account. You own every line. We do not use proprietary frameworks. Your team can take over immediately.
Compliance built in
We follow HIPAA, PCI-DSS, and SOC 2 controls from day one. No retroactive fixes. Your API is audit-ready from the first deploy.
12-week timeline guarantee
We have shipped over 200 projects on schedule. If we miss the deadline, you pay nothing for the final month. This is in writing.
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.