OpenBB-finance
Financial data platform for analysts, quants and AI agents.
QuantConnect
Lean Algorithmic Trading Engine by QuantConnect (Python, C#)
goldspanlabs
A nimble options research and backtesting library for Python
alpacahq
Alpaca’s official MCP Server lets you trade stocks, ETFs, crypto, and options, run data analysis, and build strategies in plain English directly from your favorite LLM tools and IDEs
fbertram
The Open-Source Backtesting Engine/ Trading Simulator by Bertram Enterprises.
deshwalmahesh
National Stock Exchange (NSE), India based Stock screener program. Supports Live Data, Swing / Momentum Trading, Intraday Trading, Connect to online brokers as Zerodha Kite, Risk Management, Emotion Control, Screening, Strategies, Backtesting, Automatic Stock Downloading after closing, live free day trading data and much more