Major Indian Broker APIs
Zerodha Kite API
Most widely used retail API in India. Well-documented, stable, with active developer community.
Upstox API v3
Clean REST-based API with good rate limits. Easy to start with.
Angel One SmartAPI
Free API with historical data access. Popular for educational projects.
Shoonya (Finvasia) API
Zero brokerage, popular among retail algo traders for cost efficiency.
Fyers API
Option chain data and streaming available. Good for options algo strategies.
What Does API Integration Involve?
- Authentication (login, session management, token refresh)
- Market data subscription (live quotes, order book)
- Order placement (market, limit, SL, SLM)
- Position and portfolio fetching
- Order modification and cancellation
- Historical OHLCV data fetching for backtesting
How Simpli Trade Covers This
AlgoDesk (Gold plan) comes with pre-built broker integrations. The Platinum mentorship teaches you how each API works so you can build custom integrations yourself.