Leading FastAPI Development CompanyFastAPI Development
We build production-grade APIs with FastAPI. Fixed price, senior engineers, 12 weeks to launch.
IRPR is a leading FastAPI development company. We build high-performance APIs using FastAPI with Python 3.12, Pydantic v2 for data validation, SQLAlchemy for database access, and async endpoints for maximum throughput. Our team has shipped over 200 products using this stack.
Every project ships in 8-12 weeks for a fixed price between $80K and $250K. We handle compliance for HIPAA, PCI-DSS, SOC 2, and FERPA. You get full source code ownership, CI/CD pipelines, and production monitoring from day one.
We work with CTOs who need a scalable API backend, startup founders launching a SaaS product, enterprise architects modernizing legacy systems, and healthcare IT directors who require HIPAA-compliant data exchange. Each gets a dedicated senior engineer who writes production code from week one.
Types of software we ship.
RESTful API Development
Build stateless REST APIs with FastAPI, Pydantic schemas, and async SQLAlchemy. Includes OpenAPI docs and JWT auth.
GraphQL API Development
Implement GraphQL endpoints using Strawberry or Graphene with FastAPI. Supports subscriptions, real-time data, and federation.
Microservices Architecture
Design and deploy FastAPI microservices with Docker, Kubernetes, and message brokers like RabbitMQ or Redis.
Real-time Data Streaming API
Build WebSocket-based streaming APIs with FastAPI for live dashboards, chat, and IoT data ingestion.
Data Pipeline API
Create ETL APIs with FastAPI, Celery, and PostgreSQL for batch processing and event-driven data flows.
AI/ML Inference API
Wrap machine learning models in FastAPI endpoints with async inference, model caching, and GPU support.
Third-party Integration API
Build integration layers with FastAPI to connect Stripe, Salesforce, HubSpot, Twilio, and other SaaS platforms.
Admin Dashboard API
Develop admin panel backends with FastAPI, SQLAlchemy, and React frontend. Includes role-based access and audit logs.
We build for every business type.
SaaS and cloud-native
Healthcare and life sciences
Fintech and payments
Ecommerce and retail
Enterprise and internal tools
Why Choose IRPR as Your Leading FastAPI Development Company
We have built over 200 products with FastAPI and Python. Here is what that experience means for your project.
FastAPI is the fastest-growing Python web framework in production use. It handles 50,000 requests per second on a single instance with async support. We have used it to build APIs for healthcare, fintech, and SaaS companies that process millions of transactions daily.
Our senior engineers have an average of 10 years of Python experience. They write tests, set up CI/CD with GitHub Actions, deploy to AWS or GCP, and configure Sentry monitoring. Every project includes a road map phase where we define the API contract before writing a single line of code.
How IRPR Differs from Generic Development Shops
Most agencies overpromise and underdeliver. Here is how we are different.
Generic development shops often assign junior developers, use hourly billing, and deliver late. They write code that works locally but fails in production. They do not set up monitoring, logging, or CI/CD unless you ask.
IRPR assigns senior engineers only. We give you a fixed price in week two. We write production-grade code from day one. You get a CI/CD pipeline, error tracking, and performance monitoring built into the price.
- Junior developers with 1-2 years of Python experience
- Hourly billing with no cap
- No automated tests or CI/CD
- No monitoring or error tracking
- Code delivered 4-6 months late
- No compliance or security review
- Senior Python engineers with 10+ years experience
- Fixed price quoted in week 2
- CI/CD pipeline on GitHub Actions
- Sentry error tracking and Datadog monitoring
- 8-12 week delivery on time
- HIPAA, PCI-DSS, SOC 2 compliance built in
Our FastAPI Development Process
We use a four-phase process to build your API. Each phase has a clear deliverable.
The process starts with a 2-week road map phase. We define the API contract, data model, and deployment architecture. You get a detailed document with endpoints, schemas, and a timeline. No surprises.
Then we build, test, and deploy in 6-10 weeks. You see working code every week. We deploy to staging by week 4 and production by week 8. You own the code from day one.
What Ships with Every FastAPI Project
Every project includes these deliverables by default. No add-ons, no hidden costs.
We believe in shipping production-ready code. That means your API is not just working locally. It is deployed, monitored, and documented from day one.
You get everything you need to run and maintain the API yourself. Or we can stay on for ongoing support. The choice is yours.
- Source code in your GitHub repo with full commit history
- CI/CD pipeline on GitHub Actions with automated tests and deployments
- Sentry error tracking with alerting
- Datadog or CloudWatch monitoring dashboards
- OpenAPI (Swagger) documentation auto-generated
- Docker container with multi-stage build
- Database migration scripts with Alembic
- Load testing results with Locust or k6
- Post-launch support for 30 days
- Runbook with deployment and recovery steps
What we ship in this practice.
Healthcare Data Exchange API
Built a HIPAA-compliant FastAPI backend for a telemedicine startup. The API handles 10,000 patient data requests per hour with FHIR integration. Tech stack: FastAPI, PostgreSQL, Redis, AWS ECS.
Payment Processing Gateway
Developed a PCI-DSS compliant payment API using FastAPI and Stripe Connect. Processed $50M in transactions in the first year. Tech stack: FastAPI, Stripe, PostgreSQL, Docker.
Multi-tenant SaaS Backend
Built a FastAPI backend for a B2B SaaS platform with 500+ tenants. API handles 50,000 requests per minute with sub-50ms latency. Tech stack: FastAPI, SQLAlchemy, Redis, AWS RDS.
Real-time Inventory API
Created a WebSocket-based inventory tracking API for a logistics company. Reduced stock discrepancies by 90% with real-time updates. Tech stack: FastAPI, WebSockets, Redis, PostgreSQL.
ML Model Serving API
Wrapped a computer vision model in a FastAPI endpoint for a manufacturing client. Serves 1,000 inference requests per second with GPU acceleration. Tech stack: FastAPI, PyTorch, NVIDIA Triton, GCP.
Educational Content API
Built a FERPA-compliant FastAPI backend for an edtech company. API serves 100,000 students with personalized content recommendations. Tech stack: FastAPI, PostgreSQL, Redis, AWS Lambda.
Why teams hire us.
Fixed price, not hourly
Every 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 write code.
Senior engineers only
We do not hire juniors. Every engineer has 10+ years of Python experience and has shipped at least 5 FastAPI projects. You get a lead engineer who writes production code.
Production-grade from day one
We write tests, set up CI/CD, and configure monitoring from week one. Your API is deployed to staging by week 4 and production by week 8. No throwaway prototypes.
Compliance built in
We build HIPAA, PCI-DSS, SOC 2, and FERPA compliance into the architecture. Every endpoint is secured with OAuth2, JWT, or API keys. Audit logs are standard.
Full code ownership
You own all source code, documentation, and infrastructure config from day one. No licensing fees, no lock-in, no recurring royalties. You can take the code anywhere.
Post-launch support included
Every project includes 30 days of post-launch support. We fix bugs, optimize performance, and help your team take over. Extended support is available at a fixed monthly rate.
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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