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The Market Data API is designed around REST and supports standard HTTP response codes and methods. All responses are delivered via JSON for programmatic use of the information or via CSV files to load into your preferred spreadsheet application.

Try Our API

The easiest way to try out our API is using our Swagger User Interface, which will allow you to try out your API requests directly from your browser.


Our endpoints have lots of optional parameters to allow users to sort and filter responses. It can be overwhelming to new users at first. When you're first getting started testing our API in Swagger, scroll to the required parameters and ignore all the optional ones. Most endpoints require only a ticker symbol as a required parameter.

Get Started Quick — No Registration Required!

You can try stock, option, index, and mutual fund endpoints with several different symbols that are unlocked and require no authorization token. That means these symbols can be used throughout our API with no registration required!

  • Stock endpoints: Use AAPL.
  • Options endpoints: Use any AAPL contract, for example: AAPL250117C00150000.
  • Index endpoints: Use VIX.
  • Mutual fund endpoints: Use VFINX.

Once you would like to experiment with other symbols, register a free account (no credit card required) and you be able to choose a free trial. After your trial ends, if you decide not to subscribe, you will still get 100 free requests per day. Make the decision to pay only after making a complete trial of our API.