Working Machines vs 404.directory

In-depth architectural comparison of the Working Machines and 404.directory 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 Working Machines when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Working Machines Details

Choose 404.directory when:

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

Explore 404.directory Details

Feature & Specification Comparison

Specification	Working Machines Developer Tools	404.directory Developer Tools
Summary	Discover and execute structured business-application actions through one OAuth-protected MCP server.	Discover, verify, and execute curated read-only MCP tools through one trusted Agent gateway.
Category & Scope	Developer Tools	Developer Tools

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": {
    "working-machines-2": {
      "url": "https://www.workingmachines.dev"
    }
  }
}

{
  "mcpServers": {
    "404-directory-2": {
      "command": "npx",
      "args": [
        "-y",
        "skills"
      ]
    }
  }
}

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