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Zillion Infotech has partnered with Bloxbitz. Together, we refer clients between our teams and collaborate on technology projects where our capabilities complement each other.
Have an ambitious idea, technology challenge, or ecosystem to build? Let's talk.
Zillion Infotech is a FastAPI development company. We build fast REST APIs, AI backends and microservices with FastAPI, Python and PostgreSQL. Start a project with us or hire FastAPI developers to join your team.
FastAPI is a modern Python framework for building APIs. It is quick to build with, handles many requests at once and creates API documents for you. It is a strong choice for mobile backends, AI products and microservices.
FastAPI supports async Python, so one server can handle many requests at the same time. This suits busy APIs and apps with live updates.
Python type hints and Pydantic check all data. Bad data is caught early, with clear error messages.
FastAPI creates live Swagger and ReDoc pages from your code. Your other teams can start using your API right away.
FastAPI runs on Python, so it works well with LLMs, machine learning models and data tools. It can also stream AI answers to your users as they are written.
From a first MVP to a busy live platform, we design, build and support APIs that fit your business. Every project starts with your goals and users, not a fixed template. We use FastAPI with Pydantic, SQLAlchemy, PostgreSQL, Redis and Celery. We host on AWS, Google Cloud or Azure. Your API stays secure and fast as you grow.
From a first MVP to a busy live platform, we design, build and support APIs that fit your business. Every project starts with your goals and users, not a fixed template. We use FastAPI with Pydantic, SQLAlchemy, PostgreSQL, Redis and Celery. We host on AWS, Google Cloud or Azure. Your API stays secure and fast as you grow.
We build fast, well documented REST APIs for web apps, mobile apps and partner tools. Each API includes clear data checks, login, permissions and rate limits. Your other teams get interactive documents from day one.
We build FastAPI backends for AI products, including chat assistants, RAG search and model serving. Answers appear as they are written. Long jobs run in the background, so your app stays quick.
We split large systems into small FastAPI services that talk through REST, Kafka or RabbitMQ. Each service runs in Docker or Kubernetes and can scale and release on its own.
We use FastAPI WebSockets for live chat, dashboards, alerts and tracking. Users see new data right away, without refreshing the page.
We connect your product to payment, CRM, email and other outside services. Background queues and automatic retries keep work safe when an outside service is slow or down.
We move older Flask or Django REST APIs to FastAPI step by step. We add automated tests first, so your current apps keep working during the move.
We measure real requests to find out why an API is slow, then fix the cause. Typical fixes include better database queries, indexes, Redis caching and async code.
After launch, we watch uptime and errors, apply security patches and update packages. We fix problems quickly and keep adding features as your business changes.
A clear, sprint based process that keeps code quality high and gives you working API endpoints to review at every stage.
We learn your goals and users, then plan the services, data, hosting and timeline.
We agree on endpoints and data models first, so frontend and mobile teams can start at the same time.
We work in short sprints and share working endpoints for you to review after each one.
Automated pytest tests run on every change, so new features do not break old ones.
We release with Docker and CI/CD, then monitor the API and support it after launch.
Answers to common questions about our FastAPI development services.
FastAPI development services cover building, connecting and maintaining APIs with the FastAPI Python framework. This includes REST APIs, AI backends, microservices and real-time apps.
Yes. FastAPI is used in production by many companies. With good database design, caching, monitoring and a setup that can add more servers, it can grow with your users.
FastAPI suits fast APIs, AI backends and microservices. Django suits complete products that need an admin panel and user accounts from day one. Many products use both, with Django for the main app and FastAPI for busy or AI services.
For a new API, we usually suggest FastAPI. It includes async support, data checks and API documents without extra packages. Flask can still be a good fit for small apps or teams that already use it.
It depends on the scope, the experience you need and how you want to work with us. After a short call, we share a fixed price for your project or a monthly rate for a developer.
Yes. We start with a code review, fix urgent problems and update old packages. We then continue development and support.
Tell us about your idea. Our FastAPI team will help you plan it, build it and launch it.
