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Claude Desktop

Substack MCP Server for Claude Desktop

io.github.marcomoauro/substack-mcp

Manage Substack publishing, subscribers, analytics, reader feeds, comments, and images through MCP.

client:Claude Desktop transport:stdio runtime:npm

Install Substack MCP Server in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "substack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "substack-mcp"
      ],
      "env": {
        "SUBSTACK_PUBLICATION_URL": "<SUBSTACK_PUBLICATION_URL>",
        "SUBSTACK_SESSION_TOKEN": "<SUBSTACK_SESSION_TOKEN>",
        "SUBSTACK_USER_ID": "<SUBSTACK_USER_ID>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

Substack MCP Server in other clients

Substack MCP Server MCP server