---
title: "Substack MCP server"
url: "https://martechdb.com/vendors/substack"
markdown_url: "https://martechdb.com/vendors/substack.md"
api_url: "https://martechdb.com/api/v1/vendors/substack.com"
updated: "2026-10-01"
---

# Substack MCP server

Yes. Substack publishes an official MCP server at https://mcp.substack.com/api/v1/mcp. It's hosted and needs an OAuth app that you set up in Substack first. We last checked it on 1 Oct 2026. MartechDB lists only servers the vendor publishes itself, never community servers.

- Website: [substack.com](https://substack.com)
- Categories: [Content](https://martechdb.com/categories/content.md)

## Substack MCP server

Lets your AI assistant read your Substack publication stats. Read-only, for admins of Bestseller publications.

- Address: https://mcp.substack.com/api/v1/mcp
- Runs: Hosted
- Sign-in: Sign-in needs vendor setup (`oauth`)
- Official MCP Registry: not listed
- Documentation: https://support.substack.com/hc/en-us/articles/50834026608916-How-to-connect-Substack-to-your-AI-Assistant
- How we know it's official: The vendor's own documentation
- First seen: 2026-10-01
- Last checked: 2026-10-01

Tools: not known. The server needs sign-in before it lists them.

### Connect it

Claude Code:

```sh
claude mcp add --transport http substack https://mcp.substack.com/api/v1/mcp
```

- Add to Cursor: <cursor://anysphere.cursor-deeplink/mcp/install?name=substack&config=eyJ1cmwiOiJodHRwczovL21jcC5zdWJzdGFjay5jb20vYXBpL3YxL21jcCJ9>
- Add to VS Code: <vscode:mcp/install?%7B%22name%22%3A%22substack%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fmcp.substack.com%2Fapi%2Fv1%2Fmcp%22%7D>
- Claude.ai and Claude Desktop: Customize, Connectors, "+", Add custom connector, then paste https://mcp.substack.com/api/v1/mcp
- ChatGPT: Settings, Apps, Advanced settings, turn on Developer mode, Create, then paste https://mcp.substack.com/api/v1/mcp (this usually works only with servers that use self-serve sign-in or none)

JSON for Cursor, Windsurf and other clients that connect to hosted servers:

```json
{
    "mcpServers": {
        "substack": {
            "type": "http",
            "url": "https://mcp.substack.com/api/v1/mcp"
        }
    }
}
```

> Substack doesn't let AI tools sign in on their own. Create an app in your Substack account first, then use its client ID and secret.

## Questions

### Does Substack have an official MCP server?

Yes. Substack publishes its MCP server itself. Substack's own documentation describes it. MartechDB only lists servers a vendor publishes, never community copies.

### What is the Substack MCP server URL?

The address is https://mcp.substack.com/api/v1/mcp.

### Does the Substack MCP server need an API key?

No, but it needs set-up first: it signs in with OAuth through an app you (or an admin) create in your Substack account.

### How do I connect Substack MCP to Claude, ChatGPT or Cursor?

In Claude, add https://mcp.substack.com/api/v1/mcp as a custom connector (Customize, Connectors, Add custom connector). In Cursor, use the Add to Cursor link on MartechDB's page, or paste the JSON settings into your mcp.json. In Claude Code, run: claude mcp add --transport http substack https://mcp.substack.com/api/v1/mcp

### Is the Substack MCP server in the official MCP Registry?

No. Substack hasn't published it to the official MCP Registry.

### Is the Substack MCP server working?

Yes. It answered our most recent check. We last checked it on 1 Oct 2026.

## Change history

- 2026-10-01: Substack MCP server added
- 2026-10-01: Added to MartechDB

## Alternatives with an official MCP server

In Content:

- [Adobe](https://martechdb.com/vendors/adobe.md) (adobe.com)
- [Canva](https://martechdb.com/vendors/canva.md) (canva.com)
- [Linktree](https://martechdb.com/vendors/linktree.md) (linktr.ee)
- [Brave](https://martechdb.com/vendors/brave.md) (brave.com)

## Get this data

- API: `curl https://martechdb.com/api/v1/vendors/substack.com`
- MCP: `claude mcp add --transport http martechdb https://martechdb.com/mcp`, then ask about Substack.
- Web page: https://martechdb.com/vendors/substack