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Search Japan's KKJ government procurement information portal for public tender notices from national and local agencies.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 1 month ago Due for re-check
Since last scan:D- (28)F (20)
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The n.3.ai MCP Server MCP server exposes 3 tools, focused primarily on general-purpose capabilities. Its published description reads: "Search Japan's KKJ government procurement information portal for public tender notices from national and local agencies". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates n.3.ai MCP Server F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Cross-tool shadowing" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check n.3.ai MCP Server's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add n.3.ai MCP Server to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://mcp.n-3.ai/mcp?tools=kkj-searchStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
指定したタイムゾーンの現在時刻を取得します。フォーマット文字列には date-fns の形式を使用します（例: 'yyyy-MM-dd HH:mm:ss', 'yyyy年MM月dd日 HH時mm分ss秒'）。24時間表記には 'HH' を使用してください。
国土交通省の不動産情報ライブラリから不動産価格（取引価格・成約価格）情報を取得します。取引時期、地域（都道府県、市区町村、駅）などを指定して検索することが可能。市区町村コードは reinfolib-city-list ツールで取得できます。
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: reinfolib-real-estate-price
A tool description tries to alter the model’s use of another tool.
ることが可能。市区町村コードは reinfolib-city-list ツールで取得できます。RecommendationDescriptions must describe only their own tool.
tool: reinfolib-city-list
A tool description tries to alter the model’s use of another tool.
で得た市区町村コード（id）は reinfolib-real-estate-price の city 引数に渡せます。RecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: reinfolib-real-estate-price
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: reinfolib-city-list
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
The tool set changed since the previous scan — re-review before trusting it.
The tool set changed since the previous scan — re-review before trusting it.
Vantaj uptime monitoring via MCP — manage monitors, heartbeats, incidents, and status pages.
Unified gateway to Algeria's TKAWEN ecosystem: commerce, certification, and AI tools.
Provides access to the Cohereon Doctrine AI safety framework with governance components, tiered access, and agent onboarding.
Agentic rails for complex workflows with receipts, fees, and MCP tool access.
Structural TC39 spec lookup for ECMA-262 and ECMA-402 in AI agents, SHA-pinned and offline-first.
Structural TC39 spec lookup for ECMA-262 and ECMA-402 in AI agents, SHA-pinned and offline-first.
国土交通省の不動産情報ライブラリから都道府県内の市区町村一覧を取得します。都道府県コードを指定して検索します。ここで得た市区町村コード（id）は reinfolib-real-estate-price の city 引数に渡せます。