MCP server · Social media

Substack MCP server

Let your AI read your Substack stats, search your posts, prepare drafts, and publish Notes for you.

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This is a helper that connects your AI assistant to your Substack newsletter. Once it is set up, you can ask your AI about your subscribers, your posts, and your comments, and have it prepare drafts for you. It is handy for writers and newsletter folks who want to save time on the boring parts.

What is an MCP server? The 30-second version

On its own, your AI can only chat with you. An MCP server is a small helper program that gives your AI a new skill or a connection to an app or service. This one connects your AI to Substack, so it can look things up there or do things for you when you ask. You stay in charge: your AI uses this helper only when you tell it to.

What this MCP server does

You ask your AI a question, like how many subscribers you have or what your latest post did. Your AI passes that request to this helper program. The helper talks to Substack using your own account, then brings the answer back. For writing, it can create and edit drafts and search your old posts, but you still publish long posts yourself in Substack. One exception: short Notes get published right away when you ask for them.

Flow diagram: you ask your AI “How many Substack subscribers do I have?”, the Substack MCP server connects it to Substack, and you get back answers in your chat.

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What you can do with it

Check your subscriber count
Search your published posts and drafts
Create and edit draft posts
Look up comments and tags on your posts
Publish a short Note
Upload images for your posts
Manage free subscribers you have approved

Try asking your AI

“How many Substack subscribers do I have right now?”
“Search my archive for posts about productivity.”
“Create a draft post titled Five Things I Learned This Year.”
“Publish a Note saying my new post is live.”

What it gives back to you

You get answers in plain text in your chat: numbers, lists of posts, summaries of comments, or the details of a draft it just made. When it creates or changes something, it tells you what it did. For long posts, it shows you the draft so you can review it before publishing yourself.

Before you start

What you need

A Substack account with permission to manage the publication
Node.js 22 or newer installed on your computer
Your Substack session token and user ID, or the optional browser login

Good to know

The Note tools publish to your Substack right away with no preview and no undo, so be sure before you ask for one.

Install it with your AI

Add Substack MCP server to your AI, no technical skills needed

You don't install anything by hand. You copy one prompt, paste it into an AI that can work on your computer, and it checks, installs and connects the server for you, asking you when it needs something.

Sign in to get the install prompt

Members get a ready-made prompt that lets the Claude desktop app check Substack MCP server, install it and connect it for them, step by step. You don't need any technical skills: you copy, paste and answer a few questions. Your connected AI can also find and install any of the 4,066 MCP servers here for you.