API FOR FINTECHS
Build the Future of Trading with ProStocks API
Powerful, reliable, and zero-cost APIs for startups, algo traders, and fintech innovators. Access real-time market data and execute orders programmatically.
Comprehensive API Suite
Trading API
Place, modify, and cancel orders. Fetch order book, trade book, and positions in real-time.
- REST JSON API
- 100ms Latency
Market Data API
Stream real-time tick-by-tick data for NSE and BSE across all segments via Websocket.
- Websocket Protocol
- Level 1 & Level 2 Data
Historical Data API
Access EOD and intraday historical data for backtesting your strategies.
- 1 Minute Intervals
- Adjusted & Unadjusted
Why Build on ProStocks?
Zero Cost API
Our APIs are completely free for startups and retail algo traders. No monthly fees.
Developer Sandbox
Test your strategies in a risk-free sandbox environment before going live.