MCP Substack Server

A Model Context Protocol (MCP) server for downloading and parsing Substack posts. Works with Claude.ai desktop app.

Installation

Install dependencies:

npm install

Configure Claude desktop app:

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "mcp-substack": {
      "command": "/opt/homebrew/bin/node",
      "args": ["/path/to/mcp-substack/lib/index.mjs"],
      "methods": {
        "download_substack": {
          "description": "Download and parse content from a Substack post"
        }
      }
    }
  }
}

Start the server:

npm start

Usage

In Claude desktop app, use:

Could you download and summarize this Substack post: [URL]

Features

Downloads and parses Substack posts
Extracts title, author, subtitle, and content
Works with public Substack posts
Integrates with Claude.ai desktop app

Requirements

Node.js v18+
Claude desktop app

License

MIT

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