What is the key difference between Bluesky Social MCP and Substack MCP?

Bluesky Social MCP belongs to the Social Media category with local stdio execution, while Substack MCP belongs to the Social Media category with local stdio execution.

How do I install Bluesky Social MCP or Substack 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 Bluesky Social MCP and Substack MCP free or paid?

Bluesky Social MCP operates under a Free / Open Source model (API Key required). Substack MCP operates under a Free / Open Source model (other).

Which MCP server has more tools and community activity?

Bluesky Social MCP lists 31 tools with 3 views and 16 GitHub stars. Substack MCP lists 14 tools with 4 views and 34 GitHub stars.

Can I use both Bluesky Social MCP and Substack 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

Bluesky Social MCP vs Substack MCP

In-depth architectural comparison of the Bluesky Social MCP and Substack 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

Bluesky Social MCP

Social Media · Local stdio

Quality: 51/100 (Good) | Auth: API Key required

Substack MCP

Social Media · Local stdio

Quality: 68/100 (Great) | Auth: other

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

Which MCP Server Should You Choose?

Choose Bluesky Social MCP when:

You need dedicated capabilities in the Social Media domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: BLUESKY_IDENTIFIER, BLUESKY_APP_PASSWORD.
Primary tools included: check_auth_status, get_profile, get_follows.

Explore Bluesky Social MCP Details

Choose Substack MCP when:

You need dedicated capabilities in the Social Media domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
You have access to required keys: SUBSTACK_PUBLICATION_URL, SUBSTACK_SESSION_TOKEN, SUBSTACK_USER_ID, SUBSTACK_MCP_HOME.

Feature & Specification Comparison

Specification	Bluesky Social MCP gwbischof Social Media	Substack MCP conorbronsdon Social Media
Summary	An MCP server for interacting with Bluesky via the atproto client.	MCP server for Substack — read posts, manage drafts, publish Notes, get comments, and upload images. Safe by design: cannot publish or delete posts.
Category & Scope	Social Media

Tools & Capabilities Breakdown

Bluesky Social MCP Tools (31)

check_auth_status

get_profile

get_follows

get_followers

follow_user

unfollow_user

unfollow

mute_user

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).

Bluesky Social MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "gwbischof-bluesky-social-mcp": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/gwbischof/bluesky-social-mcp@v0.1",
        "bluesky-social-mcp"
      ],
      "env": {
        "BLUESKY_IDENTIFIER": "YOUR_BLUESKY_IDENTIFIER_HERE",
        "BLUESKY_APP_PASSWORD": "YOUR_BLUESKY_APP_PASSWORD_HERE"
      }
    }
  }
}

Substack MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "conorbronsdon-substack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@conorbronsdon/substack-mcp"
      ],
      "env": {
        "SUBSTACK_PUBLICATION_URL": "YOUR_SUBSTACK_PUBLICATION_URL_HERE",
        "SUBSTACK_SESSION_TOKEN": "YOUR_SUBSTACK_SESSION_TOKEN_HERE",
        "SUBSTACK_USER_ID": "YOUR_SUBSTACK_USER_ID_HERE",
        "SUBSTACK_MCP_HOME": "YOUR_SUBSTACK_MCP_HOME_HERE"
      }
    }
  }
}

Frequently Asked Questions

Bluesky Social MCP is categorized under Social Media and uses a local stdio subprocess. In contrast, Substack MCP belongs to Social Media using local stdio subprocess. Select Bluesky Social MCP when you need capabilities focused on social media and Substack MCP when you require tools for social media.

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