You can use the Polygon API to import data from Polygon into Google Sheets. In this tutorial, we’ll show you how to connect the Polygon REST API to Google Sheets in 6 steps:
Apipheny is a free API connector for Google Sheets. You can use Apipheny to connect your Google Sheets to API data sources, easily.
1.) Install Apipheny by opening the following link on desktop and then clicking the Install button in the Google Marketplace: https://apipheny.io/install
2.) After you’ve installed Apipheny, open a Google Sheet and then click on the Extensions dropdown in the menu at the top.
In the dropdown list you should see Apipheny. Click Apipheny then click Import API to open the Apipheny sidebar in your Google Sheet.

Tip: you can open a new Google Sheet by entering this URL in your browser: sheet.new
Go to your account settings in Polygon and copy your API key. You will need it to make your API requests.
Browse Polygon’s API documentation to find the endpoint that you need: https://polygon.io/docs/stocks/getting-started

In Apipheny, copy and paste your API URL like so:

Make sure to add your API key at the end of your API URL.
Finally, the last step is to click the Run button at the bottom of the Apipheny add-on and then wait for the API data to be imported into your Google Sheet.
After making a successful request to the Polygon API, try querying a different Polygon API endpoint, or try using one of the more advanced features in the Apipheny add-on.