Best FastAPI Development CompanyFastAPI
We build production-grade APIs with FastAPI. 12-week delivery, fixed price.
IRPR builds high-performance RESTful and GraphQL APIs using FastAPI. We use async Python, Pydantic models, and auto-generated OpenAPI documentation for every project.
We deliver in 8 to 12 weeks at a fixed price from $80,000 to $250,000. Our code meets SOC 2, HIPAA, and PCI-DSS compliance standards out of the box.
We are hired by CTOs launching SaaS products, fintech startups requiring PCI-DSS compliance, healthcare companies needing HIPAA adherence, and ecommerce brands scaling their backend infrastructure.
Types of software we ship.
REST API Development
Building stateless API endpoints with async handlers and automatic Swagger docs using FastAPI and SQLAlchemy.
Microservices Architecture
Decomposing monoliths into FastAPI services communicating via RabbitMQ or Kafka, deployed on Kubernetes.
API Gateway
Central entry point with routing, rate limiting, and JWT authentication using FastAPI and Redis.
Async Web Scraper
High-throughput scraping pipelines with Celery and FastAPI, storing results in PostgreSQL.
Real-Time Data Pipeline
Streaming APIs using WebSockets and FastAPI background tasks, handling millions of events per minute.
SaaS Backend
Multi-tenant API with Stripe billing, user management, and role-based access built on FastAPI and SQLAlchemy.
Machine Learning API
Serving ML models with FastAPI, TensorFlow or PyTorch, with GPU inference and caching via Redis.
Internal Tool API
Admin dashboards and CRUD interfaces with FastAPI Admin, REST API, and automated reports.
We build for every business type.
Technology Startups
Fintech
Healthcare
Ecommerce
Media & Content
Why IRPR is the Best FastAPI Development Company
We have shipped over 200 products built on FastAPI in 50+ countries.
Since 2016, IRPR has delivered FastAPI-based projects for startups and enterprises alike. Our senior engineers write clean async Python code with full test coverage and automated CI/CD pipelines.
Every project is delivered on time with a fixed price. No scope creep. No surprise invoices. You get a production-ready API, full documentation, and complete code ownership.
How We Compare to Other FastAPI Developers
Most agencies charge by the hour and deliver late. We don't.
Generic development shops often assign junior developers, change requirements mid-project, and exceed budgets. Compliance and long-term scalability are afterthoughts.
IRPR takes a different approach. We work with senior engineers only, lock scope in the Roadmap phase, and build compliance into the architecture from day one.
- Hourly billing with unpredictable costs
- Scope creep from vague requirements
- Late deliveries (often 6+ months)
- No compliance focus (HIPAA, PCI, SOC 2)
- Junior developers with limited experience
- No post-launch support or monitoring
- Fixed price contracts with no surprises
- Scope locked in Roadmap (week 2)
- 12-week delivery, met 98% of the time
- HIPAA, PCI-DSS, SOC 2 built into every project
- Senior engineers only (10+ years average)
- Ongoing maintenance, monitoring, and 99.9% uptime SLA
Our FastAPI Development Process
From idea to production in 12 weeks.
We follow a four-phase process that ensures clarity, speed, and quality. Each phase ends with a deliverable you review and approve.
Your project starts with a discovery call and ends with a fully deployed API, complete with documentation and automated tests.
What Ships with Every FastAPI Project
You get a production-ready codebase and DevOps setup.
Every project includes all the essentials for a smooth launch and long-term maintainability. There are no hidden extras.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions and Docker
- API documentation via Swagger/OpenAPI
- Automated unit tests using pytest (80%+ coverage)
- Database migrations with Alembic
- Rate limiting and JWT authentication
- Sentry error tracking and logging
- Deployment scripts for AWS ECS or GCP
- 99.9% uptime SLA with monitoring
- Post-launch support for 30 days
What we ship in this practice.
Fintech Payment Processing API
Built a PCI-DSS compliant payment API for a fintech startup, reducing transaction latency by 40%. Handles 50,000 transactions per hour. Tech: FastAPI, Stripe, PostgreSQL, Docker.
Healthcare Telemedicine Platform
Designed HIPAA-compliant video chat and patient record API, enabling 10,000 daily consultations with encryption at rest and in transit. Tech: FastAPI, Twilio, AWS S3, Pydantic.
Ecommerce Product Catalog Microservice
Migrated from monolithic Rails to FastAPI microservices, cut page load time from 2 seconds to 200ms. Serves 5 million catalog views daily. Tech: FastAPI, Elasticsearch, Redis, Kubernetes.
Real-Time Financial Data Dashboard
Built WebSocket-based API for live stock market data, handling 1 million events per minute with sub-100ms latency. Tech: FastAPI, WebSockets, Kafka, TimescaleDB.
SaaS Multi-Tenant Backend
Created a scalable API for a B2B SaaS with 500+ tenants, achieving 99.99% uptime and automatic tenant isolation. Tech: FastAPI, SQLAlchemy, PostgreSQL, Auth0.
Media Content Delivery API
Developed a content delivery API for a media company, serving 5 million daily requests with CDN caching and rate limiting. Tech: FastAPI, Cloudflare, S3, GraphQL.
Why teams hire us.
Fixed Price, Not Hourly
Every FastAPI project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior Engineers Only
Our team averages 10+ years of Python and backend experience. You work with engineers who have shipped production FastAPI applications to millions of users.
98% On-Time Delivery
We have delivered 98% of projects on schedule over the past 8 years. Our Roadmap phase ensures realistic deadlines and clear milestones.
Full Code Ownership
When the project ends, you own every line of code. We transfer the complete source code, Docker files, and CI/CD pipelines to your GitHub account.
Built-In Compliance
We bake HIPAA, PCI-DSS, and SOC 2 controls into the FastAPI architecture from day one. No costly retrofits or security patches later.
Ongoing Support
After launch, we offer monthly maintenance contracts that include monitoring, patching, and feature updates. Our SLA guarantees 99.9% uptime.
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.