Quandl
Universal API for financial data from 500+ sources
Quandl launched on December 20, 2015 with 151 votes, #173 of 3,505 launches that month and more than 90% of that year's launches. The site was not reachable when checked in September 2026.
Does a similar job
all alternatives →- PNPandas, Numpy, and SciPy users can now access our over 4M datasets2013 · quandl.com · ▲93
The source for financial, economic, and alternative datasets, serving investment professionals.
Quantra.io, a quantitative finance API made with Quantlib2017 · quantra.io · ▲90Quantra: a derivatives pricing platform built on an open source C++ QuantLib engine, with a Python orchestration API and a web portal.
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Source: Product Hunt launch ↗
Launched alongside, December 2015
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Life & fun · 2015 · openhunt.co
