Loading…
Converts Japanese addresses into postal codes and vice versa via a remote MCP endpoint.
Review before connecting
The findings on this server are worth reviewing before you connect an agent to it.
Scanned 9 days ago Due for re-check
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 address-to-zip MCP server exposes 2 tools across a range of capabilities. Its published description reads: "Converts Japanese addresses into postal codes and vice versa via a remote MCP endpoint". It communicates over Streamable HTTP using the 2026-07-28 protocol revision, and does not require authorization to connect. MCPGrade currently rates address-to-zip C+ — the findings are worth reviewing before you connect an agent to it. Its most notable finding was "No authorization on a public remote server". 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 address-to-zip's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add address-to-zip to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://addresstozip.jp/mcpStreamable 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.
日本の住所文字列から郵便番号を検索する。番地・建物名付きでも町名まで解釈する。ローマ字・英語表記(例: Marunouchi, Chiyoda-ku, Tokyo)でも検索可。結果には日本郵便準拠のローマ字表記(romaji)を含む。
郵便番号から住所を逆引きする。100-0005 または 1000005 形式に対応(全角数字・ハイフン有無は不問)。結果には日本郵便準拠のローマ字表記(romaji)を含む。
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.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
Temporary email for AI agents — create inboxes, wait for verification emails, extract OTPs, and automate signup flows.
Runnable, versioned lists agents can search, read, create, and update — git under the hood.
Convert a written schedule into a subscribable calendar link for Apple, Google, and Outlook.
Acornonaut's MCP server for AI-powered YouTube-to-flashcard conversion with spaced repetition.
Analyze chess positions using powerful engines like Stockfish, Leela, and Maia. Retrieve games, puzzles, and opening statistics directly from Lichess and specialized databases. Visualize move
Your Team0 AI Chief of Staff, reachable from any agent — answers, acts, and coordinates.