Algorithmic Trading Python Packages

alpaca-py

The Official Python SDK for Alpaca API

vectorbt

The backtesting engine that gives you an unfair advantage. Run thousands of trading ideas before others finish one.

quantstats

Portfolio analytics for quants, written in Python

backtesting

🔎 📈 🐍 💰 Backtest trading strategies in Python.

pyportfolioopt

Financial portfolio optimisation in python, including classical efficient frontier, Black-Litterman, Hierarchical Risk Parity

lumibot

Backtestable AI trading agents and algorithmic trading strategies for stocks, options, crypto, futures, forex, SEC filings, macro data, and real brokers.

pkscreener

A Python-based stock screener for NSE, India. PKScreener is an advanced free stock screener to find potential breakout stocks from NSE and show its possible breakout values. It also helps to find the stocks which are consolidating and may breakout, or the particular chart patterns that you're looking specifically to make your decisions.

freqtrade

Free, open source crypto trading bot

freqtrade-client

Free, open source crypto trading bot

ib-fundamental

Interactive Brokers Fundamental data for humans

alpaca-mcp-server

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

jesse

An advanced crypto trading bot written in Python

async-rithmic

Python async framework for Rithmic Protocol Buffer API

finta

Common financial technical indicators implemented in Pandas.

pm-hbtbacktest

Free, open source, a high frequency trading and market making backtesting and trading bot, which accounts for limit orders, queue positions, and latencies, utilizing full tick data for trades and order books(Level-2 and Level-3), with real-world crypto trading examples for Binance and Bybit

vibe-trading-ai

"Vibe-Trading: Your Personal Trading Agent"

hftbacktest

Free, open source, a high frequency trading and market making backtesting and trading bot, which accounts for limit orders, queue positions, and latencies, utilizing full tick data for trades and order books(Level-2 and Level-3), with real-world crypto trading examples for Binance and Bybit

flox-py

Modular framework for building trading systems with polyglot strategy bindings and AI-friendly developer tools.

pykalshi

Unofficial Python client for Kalshi's prediction markets API

finrl

FinRL®: Financial Reinforcement Learning. 🔥

autotrader

A Python-based development platform for automated trading systems - from backtesting to optimisation to livetrading.

ordersim

Inspectable, deterministic Python execution simulator for replaying real order-book data

optopsy

A nimble options research and backtesting library for Python

backtrader-next

Python Backtesting library for trading strategies