A collective list of free APIs

A Simple and Universal Swarm Intelligence Engine, Predicting Anything. 简洁通用的群体智能引擎，预测万物

LLM Council works together to answer your hardest questions

⚡️ Lightning-fast backtesting engine to find your trading edge.

Portfolio analytics for quants, written in Python

Financial Markets Data Visualization using Matplotlib

Python library for backtesting trading strategies & analyzing financial markets (formerly pythalesians)

FinRL-X: An AI-Native Modular Infrastructure for Quantitative Trading

Build your autonomous hedge fund in minutes. AutoHedge harnesses the power of swarm intelligence and AI agents to automate market analysis, risk management, and trade execution.

SquareQuant is an open-source Python library for quantitative finance

Claude powered advisor system for option traders

Official Python client for DataSetIQ — The Modern Economic Data Platform. Access millions of datasets with pandas-ready DataFrames.

Applying Thorp-Kassouf option models to Bitcoin data for experimentation