jp-address-mcp
Normalizes and verifies Japanese postal addresses, splitting messy strings into structured fields with geolocation and verification.
README
Japanese Address Normalizer & Verifier (MCP Server)
An MCP server that normalizes and verifies Japanese postal addresses. Splits messy Japanese address strings (full-width characters, mixed hyphens, romaji, building/room names) into structured fields, with a verification flag and lat/lng.
Built for AI agents doing cross-border commerce, logistics, or CRM involving Japan.
Endpoint (remote, no install)
Streamable HTTP:https://jp-addr.streamfront.net/mcp
Tool
normalize_jp_address
Structure & verify a raw Japanese address string.
Input: { "address": "東京都新宿区西新宿2-8-1 パークタワー1503号" }
Output (example):
{
"ok": true,
"normalized": {
"pref": "東京都", "city": "新宿区", "town": "西新宿二丁目",
"banchi": "8-1", "building": "パークタワー", "room": "1503"
},
"geo": { "lat": 35.68945, "lng": 139.691774 },
"level": 3, "verified": true
}
How it works
Wraps the open-source @geolonia/normalize-japanese-addresses engine and
adds a preprocessing/structuring layer: full-width→half-width, hyphen
normalization, chome/banchi boundary detection via engine metadata,
building & room separation, and a verification flag.
Status
Early. Single tool. Tested mainly on residential/urban addresses. Feedback welcome.
Registry
Published to the official MCP Registry as net.streamfront/jp-address.
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