Affordable FastAPI Development FirmFastAPI Development
We build production-grade FastAPI backends in 8-12 weeks. Fixed price from $80K with no scope creep.
IRPR is an affordable FastAPI development firm that builds high-performance backends for startups and mid-market companies. We use FastAPI with Python 3.12, SQLAlchemy 2.0, and Pydantic v2 for type-safe, async APIs that handle thousands of requests per second.
Every project ships in 8-12 weeks with a fixed price between $80K and $250K. We handle compliance for healthcare (HIPAA), fintech (PCI-DSS), and SaaS (SOC 2). Our senior engineers write tests, set up CI/CD, and deploy to AWS or GCP.
Founders hire us when they need a scalable backend without hiring a full team. CTOs hire us when their in-house team is too slow. Product managers hire us when they need an API that works on day one.
Types of software we ship.
REST API backend
Standard RESTful APIs with FastAPI, PostgreSQL, and Redis caching. Includes OpenAPI docs and JWT auth.
GraphQL API backend
GraphQL APIs using Strawberry or Ariadne, with resolvers, subscriptions, and batched queries.
Microservices platform
Distributed system of FastAPI microservices with RabbitMQ, Docker, and Kubernetes orchestration.
Real-time data pipeline
Event-driven pipelines using FastAPI, WebSockets, and Apache Kafka for streaming data processing.
SaaS backend
Multi-tenant FastAPI backends with Stripe billing, Celery task queues, and admin dashboards.
AI/ML API wrapper
FastAPI endpoints wrapping OpenAI, LangChain, or custom ML models with async inference and rate limiting.
Ecommerce API
FastAPI backends for ecommerce with Stripe Connect, inventory management, and real-time order tracking.
Internal tool API
FastAPI APIs for internal dashboards, CRUD operations, and integrations with Slack, Salesforce, or HubSpot.
We build for every business type.
Startups and scaleups
Healthcare
Fintech and ecommerce
Enterprise and SaaS
Media and logistics
Why choose IRPR as your affordable FastAPI development firm
We deliver production-ready FastAPI backends with measurable outcomes.
IRPR has shipped over 200 products using FastAPI since 2018. Our senior engineers average 10+ years of Python experience. Every project includes automated tests, CI/CD pipelines, and deployment scripts. We use Pydantic for data validation and SQLAlchemy for database access.
Our fixed pricing model means you know the cost before we write a single line of code. The Roadmap phase (week 2) gives you a detailed specification and a fixed quote. No hourly billing. No surprise invoices.
How IRPR differs from other FastAPI development firms
Most agencies overpromise and underdeliver. Here is the real difference.
Generic dev shops assign junior developers who learn FastAPI on your dime. They bill by the hour and change requirements mid-project. You end up with slow APIs, no tests, and no documentation.
IRPR assigns senior engineers who have built FastAPI backends for 200+ products. We give you a fixed price, a clear timeline, and a production-ready API with OpenAPI docs, test coverage, and a CI/CD pipeline.
- hourly billing with no cap
- junior developers learning FastAPI
- no automated tests
- no CI/CD pipeline
- unclear requirements mid-project
- you own nothing until final payment
- fixed price from $80K
- senior engineers with 10+ years Python
- Pytest + coverage > 90%
- GitHub Actions CI/CD from day one
- clear spec in Roadmap phase (week 2)
- full source code ownership after payment
Our FastAPI development process in 4 phases
We follow a proven framework: Idea, Roadmap, Product, Release.
Phase 1 (Idea) takes 1 week. We clarify your requirements, define the API endpoints, and choose the tech stack. You get a one-page spec and a ballpark price.
Phase 2 (Roadmap) takes 1 week. We write a detailed technical spec with database schema, API routes, and deployment architecture. You get a fixed quote and a timeline.
What ships with every FastAPI project from IRPR
Every deliverable is production-ready and fully documented.
We do not hand over a half-finished API. Every project includes the full source code, automated tests, deployment scripts, and monitoring. You can take the code and run it yourself on day one.
- Source code in your GitHub repository
- CI/CD pipeline on GitHub Actions
- Pytest test suite with 90%+ coverage
- OpenAPI (Swagger) documentation
- Docker Compose for local development
- Deployment scripts for AWS or GCP
- Sentry error tracking
- Datadog or Prometheus monitoring
- PostgreSQL database schema migrations
- Redis caching layer configuration
What we ship in this practice.
Real-time order tracking API
Built a FastAPI backend for a logistics startup that processes 10,000+ order updates per minute. Used WebSockets and Redis Pub/Sub. Reduced order lookup latency from 200ms to 15ms. Stack: FastAPI, Redis, PostgreSQL, WebSockets.
HIPAA-compliant patient portal
Built a FastAPI backend for a telemedicine platform with FHIR integration. Handled 50,000 patient records with end-to-end encryption. Passed HIPAA audit on first attempt. Stack: FastAPI, PostgreSQL, AWS KMS, FHIR.
Multi-tenant SaaS billing API
Built a FastAPI backend for a B2B SaaS platform with Stripe Connect and usage-based billing. Supported 200+ tenants with isolated data. Reduced billing errors by 95%. Stack: FastAPI, Stripe, PostgreSQL, Celery.
Ecommerce inventory management API
Built a FastAPI backend for an ecommerce brand with real-time inventory sync across 3 warehouses. Handled 1 million SKUs with 99.99% uptime. Reduced stockouts by 60%. Stack: FastAPI, PostgreSQL, Redis, RabbitMQ.
AI content moderation API
Built a FastAPI backend that wraps OpenAI and custom NLP models for real-time content moderation. Processed 500 requests per second with 200ms latency. Stack: FastAPI, OpenAI, LangChain, Celery, PostgreSQL.
Fintech payment processing API
Built a FastAPI backend for a payment gateway with PCI-DSS compliance. Handled 10,000 transactions per day with idempotency and retry logic. Passed PCI-DSS audit in 4 weeks. Stack: FastAPI, Stripe, PostgreSQL, Redis.
Why teams hire us.
Fixed price, not hourly
Every FastAPI project gets a fixed quote after 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 experience. Every developer has shipped at least 5 FastAPI projects in production.
Production-ready from day one
Every API ships with automated tests, CI/CD, monitoring, and documentation. You can deploy to production on day one.
HIPAA and PCI-DSS compliance
We build FastAPI backends that meet HIPAA, PCI-DSS, and SOC 2 requirements. We handle encryption, audit logs, and access controls.
Full code ownership
You own 100% of the source code after the final payment. No licensing fees, no proprietary frameworks, no lock-in.
8-12 week delivery
We ship MVPs in 8-12 weeks. Our streamlined process means you go from idea to production API in under 3 months.
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.