Scipy library main repository. http://scipy.org/scipylib/
Common financial risk and performance metrics. Used by zipline and pyfolio.. http://quantopian.github.io/empyrical
IPython widgets for the Jupyter Notebook. https://ipywidgets.readthedocs.io
Numpy main repository. http://www.numpy.org/
Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more. http://pandas.pydata.org
Python library for backtesting trading strategies & analyzing financial markets (formerly pythalesians). http://www.cuemacro.com
Zipline, a Pythonic Algorithmic Trading Library. http://www.zipline.io/
The most popular Ethereum development framework. http://truffleframework.com
Portfolio and risk analytics in Python. https://quantopian.github.io/pyfolio
Python API for FRED (Federal Reserve Economic Data) and ALFRED (Archival FRED).
The QuantLib C++ library. http://quantlib.org
Python Algorithmic Trading Library. http://gbeced.github.io/pyalgotrade/
A framework agnostic, multi-gateway payment processing library for PHP 5.3+. http://omnipay.thephpleague.com/
QuickFIX C++ Fix Engine Library.
Open source analytics and market risk library from OpenGamma. http://strata.opengamma.io
Fetch stock quote data from Yahoo Finance.
Basic Development Environment - a set of foundational C++ libraries used at Bloomberg.. http://bloomberglabs.com/bde
The 21 command line interface and two1 bitcoin library. Send and receive BTC over HTTP.. https://21.co
A library for financial calculations in Ruby. https://rubygems.org/gems/finance
Python library to download market data via Bloomberg, Quandl, Yahoo etc..
Open-Source Subscription Billing & Payment Platform. http://killbill.io/
iOS's Stocks App clone written in React Native for demo purpose (available both iOS and Android).. https://play.google.com/store/apps/...
High Performance Inter-Thread Messaging Library.
A community based Python library for quantitative economics. http://quantecon.org/python_index.html
Cython QuantLib wrappers.
SImple, common-sense Bitcoin-themed Python ECC library.
R package interfacing the Bloomberg API from https://www.bloomberglabs.com/api/.
Open Source Billing a super simple way to create and send invoices and receive payments online. .
Easy to use Python API wrapper to plot charts with matplotlib, plotly, bokeh and more.
Python module to get stock data from Yahoo! Finance.
A dead simple wrapper for yahoo finance quotes end-point..
Python interface to the Thomson Reuters Dataworks Enterprise (Datastream) API.
Bloomberg Open API module for node.js. http://www.bloomberglabs.com/api/ab...
An SVG webfont full of main payment system icons. http://www.orlandotm.com/payment-we...
Practical applications towards risk-centric portfolio management.
HTTP wrapper for Bloomberg Open API.
Python tools to quantitatively manage financial risk. https://pypi.python.org/pypi/qfrm
Monte Carlo Simulations for Financial Risk Analysis..
A collection of notebooks on statistical techniques for the analysis of financial market risk..
Decentralized, Trustless, Anonymous and Open Bitcoin Mixer.
Financial information retrieval and munging (stocks, ETFs, funds, currencies, ...). Libs and app written in golang. Uses multiple datasources: Yahoo Finance, Bloomberg, et cetera..
A Ruby wrapper for the Federal Reserve Economic Data API (FRED).