io.github.MM-sheng/404-directory

up checked 2026-11-11T07:40:05.938Z

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Publisher-provided title

404.directory

Publisher-provided description

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

Summary by lookupd

Lets agents assess risk before installing or invoking tools, compare tools, and check Polymarket markets, plus browse a tool catalog.

Install

Claude Code, remote (streamable-http)

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

Claude Code, npm package (stdio)

claude mcp add 404-directory -- npx -y @mmvv1638/404-directory-mcp

Codex, remote (streamable-http)

codex mcp add 404-directory --url https://404.directory/mcp

Codex, npm package (stdio)

codex mcp add 404-directory -- npx -y @mmvv1638/404-directory-mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "404-directory": {
      "url": "https://404.directory/mcp"
    }
  }
}

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "404-directory": {
      "command": "npx",
      "args": [
        "-y",
        "@mmvv1638/404-directory-mcp"
      ]
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (16 tools)

Publisher-provided text

• understand_webpage Reads one public human-facing webpage and returns a compact, evidence-linked AgentPageModel: page type, entities, login/current state, forms, enabled actions, a
• verify_web Independently verifies that a public website is reachable and meets deployment expectations (HTTP status, HTTPS validity, optional expected text). Returns struc
• evaluate_tool_risk Make a contextual allow, review, or block decision before an AI Agent installs or invokes a third-party tool registered in 404.directory. Use this immediately b
• report_tool_outcome Close the feedback loop for one prior evaluate_tool_risk receipt. Call after the Agent proceeds, changes tools, requests review, or aborts. Submit only the boun
• evaluate_prediction_market Evaluate one specific Polymarket market before an AI Agent observes or contemplates buying or selling a Yes/No position. Use immediately before a decision when
• report_prediction_market_outcome Close the behavioral feedback loop for one prior evaluate_prediction_market receipt. Call after the Agent proceeds, reduces position size, changes side, waits,
• search_tools Find third-party catalog tools using short provider/capability keywords, for example 'official documentation' or 'OpenAI docs'. All meaningful query terms must
• get_tool Fetch one registered ecosystem tool by id or slug, including trust profile and usage stats.
• compare_tools Compare up to 5 ecosystem tools side-by-side (capabilities, trust dimensions, usage).
• get_trust_score Return the machine-readable Trust Profile for a catalog tool (ownership, availability, compatibility, security, usage).
• recommend_tools Given one known tool, recommend similar catalog tools via the Capability Graph (shared capabilities + protocol/category affinity).
• list_capabilities List capabilities in the 404 catalog with tool counts. Use to explore the Capability Graph before searching.
• get_capability_graph Return a Capability Graph snapshot (nodes, shared-capability edges, capability index) for agent planning.
• search_official_docs Search current first-party OpenAI, Microsoft Learn, AWS, and Cloudflare documentation in one call. Use this as the default documentation research tool for quest
• inspect_tool_server Live-inspect one active, provider-verified, operator-curated public MCP server from the 404.directory catalog. Returns only the remote read-only tools approved
• invoke_registered_tool Invoke exactly one approved read-only tool on an active, provider-verified, operator-curated public MCP server registered in 404.directory. First use search_too

Details

• Version: 0.10.3
• Transports: streamable-http, stdio
• Uptime (7 days): 100%
• Median latency: 1742 ms
• First indexed: 2026-11-01T09:12:06.905Z
• Last seen in registry: 2026-11-01T09:12:07.256Z
• Repository: https://github.com/MM-sheng/404-directory
• Website: https://404.directory

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