404.directory

Name: 404.directory
Author: MM-sheng

MCP serverMCP

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

by MM-shengrepository ↗homepage ↗v0.10.3MIT

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Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability69/71 checks ok

when	check	result	http	latency	detail
3 h ago	mcp initialize	ok	200	1500 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
9 h ago	mcp initialize	ok	200	320 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
16 h ago	mcp initialize	ok	200	323 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
23 h ago	mcp initialize	ok	200	1495 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
33 h ago	mcp initialize	ok	200	1553 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
2 d ago	mcp initialize	ok	200	326 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
2 d ago	mcp initialize	ok	200	414 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
2 d ago	mcp initialize	ok	200	341 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
3 d ago	mcp initialize	ok	200	1560 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools
3 d ago	mcp initialize	ok	200	1438 ms	server 404.directory 0.10.3 · protocol 2025-06-18 · 16 tools

Tools observed via MCP handshake

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

Declared by sources

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No long description beyond the summary.

mcpmodel-context-protocolai-agentrisk-preflightagent-trustprediction-marketsofficial-documentationtool-discovery

kind Official MCP Registry

name Official MCP Registry

license npm registry

repoUrl Official MCP Registry

summary Official MCP Registry

version Official MCP Registry

description Official MCP Registry

homepageUrl Official MCP Registry

publisherName Official MCP Registry

Provenance

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Official MCP Registryio.github.MM-sheng/404-directory

first seen 2 mo ago · fetched 4 h agoopen ↗

npm registry@mmvv1638/404-directory-mcp

first seen 2 mo ago · fetched 13 h agoopen ↗

Field history (12 recent events)

2 mo ago · declared · name → "404.directory"
2 mo ago · declared · summary → "Risk preflight for AI Agent tool actions and Polymarket settlement and execution checks."
2 mo ago · declared · description → "Risk preflight for AI Agent tool actions and Polymarket settlement and execution checks."
2 mo ago · declared · homepageUrl → "https://404.directory"
2 mo ago · declared · repoUrl → "https://github.com/MM-sheng/404-directory"
2 mo ago · declared · version → "0.10.3"
2 mo ago · declared · license → "MIT"
2 mo ago · declared · summary → "Identity-preserving bridge to 404.directory Agent action risk preflight."
2 mo ago · observed · packageFacts → {"name":"@mmvv1638/404-directory-mcp","registry":"npm","publishedAt":"2026-08-30T04:33:39.521Z","latestVersion":"0.10.3"
2 mo ago · declared · protocols → ["mcp"]
2 mo ago · declared · description → "Identity-preserving bridge to 404.directory Agent action risk preflight."
2 mo ago · declared · publisherName → "MM-sheng"

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