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substack.com

Unsubscribe from Substack publication

Automatically unsubscribe from Substack publication on substack.com. Unsubscribe the logged-in account from a Substack publication.

Input

publicationUrl required

Base URL of the Substack publication, e.g. https://example.substack.com

Output

unsubscribed required
publicationId required
publicationUrl required
membershipState optional

FAQ

Unsubscribe the logged-in account from a Substack publication.
Ask an AI agent connected to Reduck to run reduck/substack.com/unsubscribe_publication, or run it from a terminal with the Reduck CLI: npx @reduck-ai/cli@latest run --script reduck/substack.com/unsubscribe_publication
You do not need one. "Unsubscribe from Substack publication" drives the real substack.com pages in a browser, so it works whether or not substack.com offers an API for this.
Required: publicationUrl.
It returns unsubscribed, publicationId, publicationUrl, membershipState.
Yes. It acts as you on substack.com: on your own Chrome it reuses your session, and on a Reduck-hosted browser it loads the substack.com cookies saved by the Reduck extension.
It makes changes on substack.com, like sending, posting, booking or buying something.
Ask an AI agent connected to Reduck to run reduck/substack.com/unsubscribe_publication, or run it from a terminal with the Reduck CLI: npx @reduck-ai/cli@latest run --script reduck/substack.com/unsubscribe_publication
It is part of Reduck's official curated catalogue.

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Post a comment on a Substack post as the logged-in account. The account needs a display name set up on Substack first (via any post's comment box) — the script fails loudly with instructions if it isn't.

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Delete Substack comment

Delete one of the logged-in account's own comments on a Substack post, by the post URL and the comment's id (from post_comment or get_post_comments). Only your own comments can be deleted, and this cannot be undone.

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