FastMCP server for Substack — publish Notes and posts, pull analytics, manage dr

Install FastMCP server for Substack — publish Notes and posts, pull analytics, manage dr for Claude Desktop

Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.

1. Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
2. Paste the JSON config below.
3. Replace placeholder secrets, then restart the client if it does not reload on its own.

{
  "mcpServers": {
    "adelaidasofia-substack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "https://github.com/adelaidasofia/substack-mcp/releases/download/v0.1.0/substack-mcp.mcpb"
      ],
      "env": {
        "SUBSTACK_SID_COOKIE": "YOUR_SUBSTACK_SID_COOKIE"
      }
    }
  }
}

Official Claude Desktop docs