Substack Fetcher FAQs

Question 1

Does Substack Fetcher access subscriber-only content?

Accepted Answer

Yes, it can. You need to provide your Substack cookies to authenticate and access subscriber-only articles. Instructions are included in the setup guide.

Question 2

What does Substack Fetcher do?

Accepted Answer

Substack Fetcher extracts articles from a specified Substack publication (like Trade Companion) and formats the content into plain text, preserving headings, paragraphs, and lists, making it ideal for use with AI assistants.

Question 3

Is my Substack cookie information secure?

Accepted Answer

Your cookies are stored locally in a `substack_cookies.json` file on your machine. They are only used to authenticate requests to Substack and are not sent elsewhere or exposed in any other way.

Question 4

How do I use Substack Fetcher with Claude AI?

Accepted Answer

The tool is specifically designed for Claude AI. You'll configure Claude to use this MCP server by specifying the command and path in your Claude config file, allowing Claude to fetch and process Substack articles automatically.

Question 5

What Substack publications are compatible?

Accepted Answer

While the tool is designed for Trade Companion by Adam Mancini by default, it can be adapted for other Substack publications with adjustments to the configuration.

Substack Fetcher

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