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