Local + RemoteFree

404.directory MCP server

MM-sheng/404-directory

Risk preflight for AI Agent tool actions and Polymarket settlement and execution checks.

1 GitHub stars
Source code Website

Install 404.directory in Claude Code

Remote URL

Claude Code
claude mcp add --transport http 404-directory https://404.directory/mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "404-directory": {
      "url": "https://404.directory/mcp"
    }
  }
}

npm

Claude Code
claude mcp add 404-directory -- npx -y @mmvv1638/404-directory-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "404-directory": {
      "command": "npx",
      "args": [
        "-y",
        "@mmvv1638/404-directory-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the 404.directory MCP server do?

Risk preflight for AI Agent tool actions and Polymarket settlement and execution checks.

Is the 404.directory MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does 404.directory run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add 404.directory to Claude Code?

Run: claude mcp add --transport http 404-directory https://404.directory/mcp

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