What is the key difference between Substack Publisher MCP and Seo Tools MCP?

Substack Publisher MCP belongs to the Marketing category with local stdio execution, while Seo Tools MCP belongs to the Marketing category with local stdio execution.

How do I install Substack Publisher MCP or Seo Tools MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Substack Publisher MCP and Seo Tools MCP free or paid?

Substack Publisher MCP operates under a Free / Open Source model (API Key required). Seo Tools MCP operates under a BYOK (Pay Provider Direct) model (API Key required).

Which MCP server has more tools and community activity?

Substack Publisher MCP lists 6 tools with 6 views and 6 GitHub stars. Seo Tools MCP lists 11 tools with 5 views and 3 GitHub stars.

Can I use both Substack Publisher MCP and Seo Tools MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Substack Publisher MCP vs Seo Tools MCP

In-depth architectural comparison of the Substack Publisher MCP and Seo Tools MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Substack Publisher MCP

Marketing · Local stdio

Quality: 52/100 (Good) | Auth: API Key required

Seo Tools MCP

Marketing · Local stdio

Quality: 65/100 (Great) | Auth: API Key required

Verdict Summary: Choose Substack Publisher MCP if you need specialized Marketing tools running via a local process. Choose Seo Tools MCP if your workspace requires Marketing integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Substack Publisher MCP when:

You need dedicated capabilities in the Marketing domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: SUBSTACK_API_KEY.
Primary tools included: list_publications, list_posts, get_post.

Explore Substack Publisher MCP Details

Choose Seo Tools MCP when:

You need dedicated capabilities in the Marketing domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
Primary tools included: xmlstock_auth_status, xmlstock_set_credentials, xmlstock_serp.

Feature & Specification Comparison

Specification	Substack Publisher MCP dkships Marketing	Seo Tools MCP antohins Marketing
Summary	Read-only access to posts, engagement stats, subscriber counts, and subscriber lookup through Substack's official Publisher API. Supports multiple publications.	Five read-only SEO servers for the Google/Yandex (RU/CIS) market: SERP (XMLStock), Yandex Wordstat, Google Search Console (Search Analytics + URL Inspection), Yandex.Webmaster, and Yandex.Metrica. 38 tools, multi-account, OAuth with auto-refresh. Install: npx -y seo-tools-mcp-.
Category & Scope

Tools & Capabilities Breakdown

Substack Publisher MCP Tools (6)

list_publications

List configured publications

list_posts

List published posts

get_post

Get a specific post by URL slug

get_post_stats

Get engagement stats for a post

get_subscriber_counts

Get daily subscriber counts by type

get_subscriber

Look up a subscriber by email

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Substack Publisher MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "dkships-substack-publisher-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "dkships-substack-publisher-mcp"
      ],
      "env": {
        "SUBSTACK_API_KEY": "YOUR_SUBSTACK_API_KEY_HERE"
      }
    }
  }
}

Seo Tools MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "antohins-seo-tools-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "seo-tools-mcp-xmlstock"
      ]
    }
  }
}

Frequently Asked Questions

Substack Publisher MCP is categorized under Marketing and uses a local stdio subprocess. In contrast, Seo Tools MCP belongs to Marketing using local stdio subprocess. Select Substack Publisher MCP when you need capabilities focused on marketing and Seo Tools MCP when you require tools for marketing.

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