Mmcp.market

Address To Zip MCP server

by addresstozip.jp·jp.addresstozip/address-to-zip·v1.2.0
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日本の住所⇄郵便番号を変換。表記ゆれも吸収。Japan address ⇄ postal code, handles messy input. Free tier, no API key.

C69/100grade C
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Safety scan
C69/100

full report

Adoption
New

Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

Address To Zip tools (2)

write = sends, deletes, buys or posts
  • lookup_zipcodeFree

    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。 / Reverse lookup: get the Japanese address for a postal code. Accepts 100-0005 or 1000005 (full-width digits and missing hyphens are fine). Results include Japan Post romaji.

  • search_addressFree

    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。 / Look up a Japanese postal code from an address string. Tolerates messy input (full-width digits, hyphen variants, street numbers and building names) and resolves down to the town level. Romaji/English input is accepted. Results include Japan Post romaji.

Public scan report

scanner v0.1.9 · 2026-09-19 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 410ms20/20
  • Tool poisoning2 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenanceno repository listed3/15
  • Maintainer identityverified namespace with website, no repo4/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 69/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http address-to-zip https://addresstozip.jp/mcp
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Address To Zip: common questions

Is Address To Zip MCP server safe?
With care: it is graded C, so read the findings first (69/100). Read the Address To Zip safety report
How do I install Address To Zip?
It runs remotely at addresstozip.jp. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Address To Zip need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Address To Zip maintained?
The latest release is v1.2.0.
Is Address To Zip up?
100% of our last 5 checks got an answer. We check remote servers about four times a day.

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