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

A JavaScript library for common financial calculations

Portfolio optimization with deep learning.

An Open Source Portfolio Backtesting Engine for Everyone | 面向所有人的开源投资组合回测引擎

Modular Python library that provides an advanced event driven backtester and a set of high quality tools for quantitative finance. Integrated with various data vendors and brokers, supports Crypto, Stocks and Futures.

Open source analytics and market risk library from OpenGamma

Python wrapper for an unofficial Yahoo Finance API

python tools for Finance with the functionality of indicator calculation, business day calculation and so on.

Quantitative Financial Modelling Framework

A simple but powerful self-hosted finance tracker

Model Context Protocol (MCP) to enable AI LLMs to trade using MetaTrader platform

Python-based framework for backtesting trading strategies & analyzing financial markets [GUI :neckbeard:]

Quantitative Finance tools

Python SDK for IEX Cloud

low code backtesting library utilizing polars and technical analysis indicators

💰 Ocular - A fancy, simplistic, beautiful and straight-forward, open-source budgeting tracking app to track your budget across the years. Easy to use, to get started and to set up.

A Python package for aggregating and normalizing historical data from popular and free financial APIs.

talipp - incremental technical analysis library for python

Library for fitting the LPPLS model to data.

High-performance technical analysis indicators and backtesting framework in TypeScript. Zero dependencies. ✨ See how! 👀

Intelligently optimizes technical indicators and optionally selects the least intercorrelated for use in machine learning models

QLNet C# Library

Python interface to IEX and IEX cloud APIs

A fixed income library for pricing bonds and bond futures, and derivatives such as interest rate swaps (IRS), cross-currency swaps (XCS) and FX swaps. Contains tools for full curveset construction with market standard optimisers and automatic differentiation (AD) and risk sensitivity calculations including delta and cross-gamma.

Technical analysis and other functions to construct technical trading rules with R

Fast and scalable construction of risk parity portfolios

Python client for interacting with the Tiingo Financial Data API (stock ticker and news data)

A backtester and spreadsheet library for stocks and ETFs

Native iOS SwiftUI client for Actual Budget—manage accounts, budgets, and transactions with a Summary widget and App Intents.

Forex algorithmic trading framework using OANDA REST API.