FastAPI Development PartnerDevelopment Partner
We build production-grade APIs with FastAPI. Get a dedicated team that ships in 8-12 weeks with fixed pricing.
IRPR is a FastAPI development partner that builds scalable APIs, microservices, and backend systems. We use FastAPI with Python 3.11, Pydantic for data validation, SQLAlchemy for ORM, and async endpoints for high concurrency.
Every project ships with a fixed price quote in the Roadmap phase (week 2). Typical FastAPI projects range from $80K to $250K and finish in 8-12 weeks. We handle compliance like HIPAA, PCI-DSS, and SOC 2.
Our clients include CTOs at SaaS startups who need a fast MVP, product managers at healthcare companies building HIPAA-compliant APIs, fintech founders requiring PCI-DSS certified backends, and ecommerce directors migrating from legacy monoliths to FastAPI microservices.
Types of software we ship.
REST API Development
Build RESTful APIs with FastAPI, OpenAPI docs auto-generated, async endpoints for 10K+ requests per second.
GraphQL API Development
Implement GraphQL APIs using Strawberry or Ariadne on FastAPI, with real-time subscriptions via WebSockets.
Microservices Architecture
Design event-driven microservices with FastAPI, RabbitMQ or Kafka, containerized with Docker and Kubernetes.
Data Pipeline API
Build ETL and data processing APIs with FastAPI, Celery for async tasks, and Redis for caching.
Real-Time API
Create real-time APIs using FastAPI WebSockets, Server-Sent Events, and Redis Pub/Sub for live dashboards.
Third-Party Integration API
Integrate with Stripe, Salesforce, HubSpot, and Twilio via FastAPI, with retry logic and rate limiting.
Admin Dashboard Backend
Develop admin panel backends with FastAPI, SQLAdmin, and role-based access control for internal tools.
AI/ML Inference API
Deploy machine learning models as FastAPI endpoints with ONNX Runtime, GPU support, and auto-scaling.
We build for every business type.
SaaS and Startups
Healthcare and Fintech
Ecommerce and Retail
Enterprise and Internal Tools
Media and Content
Why choose IRPR as your FastAPI development partner
We have shipped over 200 products using FastAPI, Python, and modern async stacks.
Our team of senior engineers has built FastAPI systems that handle millions of requests per day. We use async endpoints, database connection pooling, and caching layers to keep response times under 100ms. Every project includes load testing with Locust and monitoring with Prometheus and Grafana.
We work with startups that need a production-ready API in 8 weeks and enterprises migrating from Django or Flask to FastAPI for better performance. Our fixed pricing model means you know the cost before we write a single line of code.
The difference between hiring a generic dev shop and IRPR
Most agencies bill hourly and deliver late. IRPR fixes that.
Generic dev shops often use outdated stacks like Flask or Django without async support. They bill by the hour, so scope creep costs you money. They rarely test for high concurrency or provide monitoring out of the box.
IRPR builds your FastAPI project with async endpoints, Pydantic validation, and auto-generated OpenAPI docs. We give you a fixed price in week 2, ship in 8-12 weeks, and include monitoring, CI/CD, and security scanning in every project.
- Hourly billing that rewards slow work
- No async support, slow endpoints
- Manual deployment, no CI/CD
- No load testing or performance guarantees
- You don't own the source code until final payment
- No compliance certifications (HIPAA, PCI)
- Fixed price quoted in week 2
- FastAPI with async endpoints for 10K+ req/s
- CI/CD pipeline on GitHub Actions from day 1
- Load testing with Locust, monitoring with Prometheus
- Full source code ownership from day 1
- HIPAA, PCI-DSS, SOC 2 compliant projects
Our process for building your FastAPI project
We follow a four-phase process that starts with an idea and ends with a live API.
Phase 1: Idea. We map your requirements, define endpoints, and choose the data model. This takes 1-2 weeks and costs nothing if you decide not to proceed.
Phase 2: Roadmap. We produce a detailed technical specification, wireframes, and a fixed price quote. You approve the plan before we build.
What ships with every FastAPI project from IRPR
You get a production-ready API with all the tools you need to maintain and scale it.
Every project includes source code in your private GitHub repo, a CI/CD pipeline with GitHub Actions, automated tests with pytest, and API documentation via Swagger UI. We also set up error tracking with Sentry and performance monitoring with New Relic.
You own everything. No license fees, no recurring costs. We never use proprietary frameworks or lock you into our stack.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Automated tests with pytest (90%+ coverage)
- API documentation via Swagger UI and ReDoc
- Error tracking with Sentry
- Performance monitoring with New Relic
- Docker Compose for local development
- Load testing script with Locust
- One-click deploy to AWS or GCP
What we ship in this practice.
SaaS API for a B2B platform
Built a multi-tenant REST API with FastAPI, PostgreSQL, and Stripe integration. Reduced time-to-market by 6 weeks and handled 50K requests per day. Tech stack: FastAPI, SQLAlchemy, Redis, Docker.
HIPAA-compliant healthcare API
Developed a telemedicine backend with FastAPI, encrypted PHI storage, and audit logging. Passed HIPAA audit on first attempt. Tech stack: FastAPI, PostgreSQL, AWS KMS, Pydantic.
Real-time analytics dashboard
Created a WebSocket-based API for live metrics using FastAPI and Redis. Displayed 10K events per second with sub-50ms latency. Tech stack: FastAPI, Redis, WebSockets, Grafana.
Payment processing microservice
Built a PCI-DSS compliant payment API with FastAPI, Stripe Connect, and idempotency keys. Processed $2M in transactions in the first month. Tech stack: FastAPI, Stripe, PostgreSQL, Celery.
Ecommerce inventory management API
Developed a FastAPI backend for inventory sync across 3 warehouses. Cut stock-out errors by 80%. Tech stack: FastAPI, PostgreSQL, Redis, RabbitMQ.
ML inference API for a real estate platform
Deployed a property valuation model as a FastAPI endpoint with ONNX Runtime. Handled 500 requests per minute with 200ms average response time. Tech stack: FastAPI, ONNX, Redis, Docker.
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. You know the cost before we build.
Senior engineers only
We hire no juniors. Every engineer on your project has 8+ years of experience and has shipped at least 5 FastAPI projects. You get a lead engineer, not a team of interns.
8-12 week MVPs
We ship production-ready FastAPI APIs in 8-12 weeks. Our process is optimized for speed without cutting corners. We use async endpoints, CI/CD, and automated testing from day one.
Full code ownership
You own the source code from day one. We put it in your private GitHub repo. No proprietary frameworks, no licensing fees, no lock-in. You can take the code and run it anywhere.
Compliance built in
We build FastAPI systems that are HIPAA, PCI-DSS, and SOC 2 ready. Our engineers know how to handle PHI, PII, and payment data. We include encryption, audit logs, and access controls.
Post-launch support included
Every project includes 30 days of post-launch support. We monitor your API with Sentry and New Relic, fix bugs, and help with scaling. No extra charge.
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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