Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more
Scipy library main repository
The most popular Ethereum development framework
Zipline, a Pythonic Algorithmic Trading Library
Interactive Widgets for the Jupyter Notebook
Numpy main repository
Open-Source Subscription Billing & Payment Platform
Open source analytics and market risk library from OpenGamma
A framework agnostic, multi-gateway payment processing library for PHP 5.3+
Portfolio and risk analytics in Python
Financial information retrieval and munging (stocks, ETFs, funds, currencies, ...). Libs and app written in golang. Uses multiple datasources: Yahoo Finance, Bloomberg, et cetera.
The QuantLib C++ library
Common financial risk and performance metrics. Used by zipline and pyfolio.
Easy to use Python API wrapper to plot charts with matplotlib, plotly, bokeh and more
Python library for backtesting trading strategies & analyzing financial markets (formerly pythalesians)
A community based Python library for quantitative economics
Cython QuantLib wrappers
QuickFIX C++ Fix Engine Library
Python library to download market data via Bloomberg, Quandl, Yahoo etc.
High Performance Inter-Thread Messaging Library
Open Source Billing a super simple way to create and send invoices and receive payments online.
Python Algorithmic Trading Library
Python module to get stock data from Yahoo! Finance
[Deprecated] iOS's Stocks App clone written in React Native for demo purpose (available both iOS and Android).