GTM API: LinkedIn MCP Server vs Secondhand MCP

In-depth architectural comparison of the GTM API: LinkedIn MCP Server and Secondhand 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 GTM API: LinkedIn MCP Server when:

• You need dedicated capabilities in the Social Media domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore GTM API: LinkedIn MCP Server Details

Choose Secondhand MCP when:

• You need dedicated capabilities in the Social Media domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Secondhand MCP Details

Feature & Specification Comparison

Specification	GTM API: LinkedIn MCP Server Social Media	Secondhand MCP Social Media
Summary	Managed LinkedIn MCP server for AI agents: search, connect, message and enrich on accounts you own.	Search Facebook Marketplace, eBay, Depop, and Poshmark from AI — filters, photos, full listings.
Category & Scope	Social Media	Social Media

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": {
    "gtm-api-linkedin-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@gtm-api/linkedin-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "secondhand-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "secondhand-mcp"
      ]
    }
  }
}

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