What kind of data does Quandl have? How do I search for data?

This article provides an overview of the following: 

  • How to search for data
  • Free vs. premium data
  • Alternative data
  • The format of the data feeds on Quandl: time-series and tables, custom APIs

How to search for data

Quandl delivers financial, economic data. To see these data feeds, please go to our Search page. Our unique search page was designed with financial data in mind. To see it in action, try the following:

  1. Type WMT in the Search bar
  2. View the resulting feeds on Quandl that include Walmart (WMT) as part of their coverage
  3. Now try the same thing with search terms like “gold,” “bitcoin,” or “China”
  4. Refine by asset class, data type, or geography using the filters on the left

On that note, here are some of our most popular data feeds:

Stock Prices
Sharadar Equity Prices
End of Day US Stock Prices

Fundamentals
Core US Fundamentals

Futures/Commodities
Continuous Futures

Economics
Trading Economics

If you are looking for any specific kind of data and are having trouble finding it on our website, please email us and tell us specifically what you're looking for. We'll do our best to help you find what you need.


Free vs. premium data

Quandl offers both free and premium data feeds. We explain the differences between free and premium data here.  


Alternative data

Quandl also provides alternative data to institutions. To learn more about our alternative data, please visit: https://www.quandl.com/alternative-data. Please note that we do not license alternative data to individuals. 



The format of the data feeds on Quandl: time-series and tables, custom APIs

Quandl has optimized the vast majority of data feeds for one of two different formats: time-series and tables. You can learn more about these formats here.

Although very rare, a few data feeds use a custom API and do not use the API for time-series or tables.

Our API documentation outlines the API calls, Python and R commands, and Excel formulas to use for data in time-series format vs. tables format. Please ensure that you are using the correct syntax in your API call, or the correct commands, for the format of the data you're trying access. 

As for custom APIs, each data feed that uses a custom API comes with documentation that explains how to make API calls for that feed. For example, the ORATS Smoothed Options Market Quotes data feed uses a custom API and its Documentation explains how to make custom API calls. Please note that data feeds using a custom API may only be downloaded via the custom API routes described in their documentation. These data feeds may not be downloaded through Quandl's Python Package, R Package or Excel Add-In.

It is important to know the format of the data feed you're trying to access because this will affect the structure of the API call or command that you use to download data from a particular data feed.

The product page for each data feed indicates if that data feed is a time-series or table, or if it uses the custom API.

For example: 

Here is the product page for the NASDAQ Stock Market Prices data feed. As you'll see on the right-hand panel, this data feed is in time-series format:

Here is the product page for the Sharadar Equity Prices data feed. As you'll see on the right-hand panel, this data feed is in tables format: 

Here is the product page for the ORATS Smoothed Options Market Quotes data feed. As you'll see on the right-hand panel, this data feed uses a custom API

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