Substack Ops vs Posteverywhere MCP

In-depth architectural comparison of the Substack Ops and Posteverywhere 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.

Which MCP Server Should You Choose?

Choose Substack Ops 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).
• Primary tools included: 26-tool Substack MCP interface, Host-LLM reply drafting without AI API keys, Dry-run defaults for write actions.

Explore Substack Ops Details

Choose Posteverywhere 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 (Freemium).
• You have access to required keys: POSTEVERYWHERE_API_KEY.
• Primary tools included: list_accounts, get_account, list_posts.

Feature & Specification Comparison

Specification	Substack Ops 06ketan Social Media	Posteverywhere MCP posteverywhere Social Media
Summary	Substack with zero AI API keys. 26 tools (posts, notes, comments, replies, reactions, restacks). Host LLM drafts via proposereply → confirmreply tokens. SQLite dedup, JSONL audit, dry-run default. Install: uvx substack-ops mcp install cursor.	Hosted MCP server to schedule and publish across 11 social platforms (Instagram, LinkedIn, TikTok, X, YouTube, Facebook, Threads, Pinterest, Bluesky, Discord, Telegram). 32 tools covering posts, campaigns, bulk operations, media, analytics, webhooks, and AI captions. Connect with one URL, or run locally via npx -y @posteverywhere/mcp.
Category & Scope

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "06ketan-substack-ops": {
      "command": "uvx",
      "args": [
        "substack-ops"
      ]
    }
  }
}

{
  "mcpServers": {
    "posteverywhere-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@posteverywhere/mcp"
      ],
      "env": {
        "POSTEVERYWHERE_API_KEY": "YOUR_POSTEVERYWHERE_API_KEY_HERE"
      }
    }
  }
}

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