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Instead of adding Substack newsletters one by one, you can connect your Substack account and import all your subscriptions at once.
Paid Substack subscribers: Use email forwarding insteadIf you’re subscribed to paid Substacks, this import feature will only capture the free preview, not the full content. We strongly recommend using email auto-forwarding and adding your newsletters to an Email block instead. This way, you’ll get the complete content of paid newsletters.
Best for quick imports: This feature is designed as a fast way to bring in all your free Substack subscriptions. For better management and full control, consider using email forwarding to add newsletters to an Email block instead.This import is available when adding an RSS block. You can also add individual Substack newsletters by pasting their URLs directly.

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Connecting Your Substack Account

1

Find your Substack profile URL

Navigate to substack.com and click on your profile icon, then click on your name to view your profile.
Substack profile navigation
2

Make your 'Reads' section public

For Summate to import your subscriptions, your ‘Reads’ section must be public.
Substack profile with Reads section
Click ‘Edit Profile’ and scroll down to the ‘Reads’ section. Here you can choose which newsletters to make public.
Substack Reads privacy settings
You only need to make your Reads public during the import. After syncing with Summate, you can make them private again.
3

Connect in Summate

In Summate, when creating or editing an RSS block, click ‘Import your Substack’.
Import Substack button in Summate
Enter your Substack profile URL in the format:
  • https://substack.com/@username or
  • https://substack.com/profile/username
Substack profile URL input
4

Select subscriptions to import

Summate will fetch all your public subscriptions. Select which ones you want to add to your RSS block.
Substack subscription selection
The selected newsletters will be added as sources in your RSS block.

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After Import

Once imported, your Substack newsletters will appear as RSS sources in your block. You can:
  • View them in the RSS block’s Sources tab
  • Remove individual newsletters if needed
  • Import additional Substack accounts following the same process
Substack newsletters imported this way are treated as RSS feeds. They’ll be summarized just like any other blog or RSS source in your digest.

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Troubleshooting

  • Verify your Reads section is public
  • Check that your profile URL is correct
  • Try using the alternative URL format (@username vs profile/username)
Only newsletters visible in your public Reads will be imported. Check your Reads privacy settings and make sure the newsletters you want are set to public.
If you’re already receiving Substack newsletters via email forwarding, you don’t need to import them as RSS sources. You can add them to an Email block instead.

RSS Blocks

Learn about RSS blocks and sources

Sources

Understand how sources work

Email Forwarding

Alternative: Forward Substack newsletters via email