Substack MCP Server

by marcomoauro Your server? Claim it

local only

Substack MCP Server runs on your own machine — the client starts it, so there is no endpoint to ping. 939 installs a week from npm. Last commit 29 Aug 2026.

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

Installs per day peak 310 · avg 61 · +530% w/w

a month agotoday

939

Installs / week

npm · substack-mcp

Stars

0 open issues

29 Aug 2026

Last commit

0 releases in 90 days

MIT

License

JavaScript

Nothing serious here today

Today is the operative word: we check Substack MCP Server every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add substack-mcp -- npx -y substack-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "substack-mcp": {
      "args": [
        "-y",
        "substack-mcp"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.substack-mcp]
command = "npx"
args = ["-y", "substack-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "substack-mcp": {
      "args": [
        "-y",
        "substack-mcp"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "substack-mcp": {
      "args": [
        "-y",
        "substack-mcp"
      ],
      "command": "npx"
    }
  }
}

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Substack MCP Server — questions

Answers built from our own checks of this server.

Why is there no uptime for Substack MCP Server?

Substack MCP Server runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package substack-mcp was installed 939 times last week.

How do I connect Substack MCP Server?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls substack-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Substack MCP Server?

The npm package substack-mcp was installed 939 times in the last week. Week over week that is +530%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Substack MCP Server open source?

Yes — it is published under the MIT licence, written in JavaScript and 70 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.