Multi-Broker Options Trading Platform

The Challenge

Indian brokers whitelist by IP. A multi-user trading platform therefore cannot just call broker APIs from one server — every user needs their own trusted network identity.

What We Built

• Web platform for options strategy execution across multiple brokers
• Per-user Elastic IP proxy architecture so each account meets broker IP whitelisting
• Subscription billing built in
• FastAPI backend with a Next.js front end

Technology

Next.js · FastAPI · AWS Elastic IPs · Razorpay · broker APIs

Outcome

A genuinely hard infrastructure problem solved cleanly — the kind of constraint that only shows up once you have actually shipped trading software in India.

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