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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 based in Surat, Gujarat. We build fast APIs, AI backends and microservices for Indian businesses. We also add UPI payments, OTP login and WhatsApp.
Many Indian apps have mobile users on busy networks. The backend must stay quick and keep server costs low. From funded startups to growing firms, we build APIs that handle real traffic and are easy to grow.
FastAPI sends small, quick responses, which suits Android and iOS apps used on Indian mobile networks. It also supports OTP login and push alerts.
We connect Razorpay, PayU, Cashfree and UPI for payments, subscriptions and refunds, with automatic payment status updates.
India region hosting, consent, access and audit controls help you meet the Digital Personal Data Protection Act.
Work with a team in IST that is available during your business hours, with clear communication and open pricing in INR.
From a first MVP to a busy backend for a large firm, we design, build and support APIs that fit your business. Every project starts with your goals, users and processes, not a fixed template. We use FastAPI with Pydantic, PostgreSQL, Redis and Celery, hosted on AWS Mumbai, Google Cloud or Azure India regions. This keeps your data in India and your API fast as you grow.
From a first MVP to a busy backend for a large firm, we design, build and support APIs that fit your business. Every project starts with your goals, users and processes, not a fixed template. We use FastAPI with Pydantic, PostgreSQL, Redis and Celery, hosted on AWS Mumbai, Google Cloud or Azure India regions. This keeps your data in India and your API fast as you grow.
Secure REST APIs for Android and iOS apps, websites and partner tools. They include OTP login, clear docs and rate limits.
FastAPI backends for chatbots that understand Hindi, regional languages and Hinglish. Streaming answers and usage limits keep them quick and low cost.
We connect Razorpay, PayU, Cashfree, Paytm, the WhatsApp Business API and Indian SMS OTPs. Queues and retries make sure nothing is lost.
Multi-tenant SaaS APIs with Razorpay billing in INR, team accounts and GST ready invoices. Indian businesses can sign up on their own.
Small FastAPI services that run in Docker and Kubernetes. Busy parts of your product can scale on their own, so you pay only for what you need.
We move older Flask, Django REST or PHP APIs to FastAPI step by step. We add automated tests first, so your current apps keep working.
We find what makes your API slow and fix it. We use better queries, indexes, Redis caching and async code, so your app stays quick.
Uptime and error checks, security patches, backups, quick fixes and new features. You get a team in your time zone on a simple monthly plan.
A clear, milestone based process with regular demos, so you always know what has been built and what comes next.
We learn your business, users and budget, then plan the features, services, hosting and timeline.
We agree on endpoints and data models first, so your mobile and web teams can start at the same time.
We work in short sprints and share working endpoints after each one. You can reach your developers on WhatsApp or Slack.
We run automated pytest tests and check payment, OTP and load handling before every release.
We deploy on India region servers, then monitor the API and give ongoing support and improvements after launch.
Answers to common questions about our FastAPI development services for businesses in India.
An Indian FastAPI team gives you skilled Python developers at a fair cost in your time zone. We also know UPI payments, OTP login and Indian mobile users.
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 in INR for your project or a monthly rate for a developer.
Yes. FastAPI handles many requests at once. With caching, a well designed database and extra servers when needed, it can grow as your users grow.
Yes. We integrate Razorpay, PayU, Cashfree, Paytm and UPI for one time payments, subscriptions and refunds, with automatic payment status updates.
Yes, if you need it to be. We deploy on India region servers such as AWS Mumbai. We plan consent, storage and access around the DPDP Act.
For dedicated FastAPI developers, we can usually start within a week. For full projects, discovery and planning begin within a few days of agreement.
Tell us about your business. Our FastAPI team in Surat will help you plan it, build it and launch it.
