Japan Address & Geocoding MCP Server
io.github.easakura/japan-address-geocoding-mcp
answering
Japan Address & Geocoding is answering right now. Last checked 12 min ago. It exposes 3 tools.
Japanese address search and geocoding (official address registry): postal codes and coordinates.
Uptime history
41 hours of history · worst hour 43%
41 hours agonow
50.0%
Uptime 24h
91 of 182 checks
3
Tools
read from the server
932 ms
Response time
average over 24h
open, no key
Access
streamable-http
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.
run in your terminal
claude mcp add japan-address-geocoding-mcp --transport http https://jusho-mcp.easakura.workers.dev/mcp~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"japan-address-geocoding-mcp": {
"url": "https://jusho-mcp.easakura.workers.dev/mcp"
}
}
}~/.codex/config.toml
[mcp_servers.japan-address-geocoding-mcp]
url = "https://jusho-mcp.easakura.workers.dev/mcp".cursor/mcp.json
{
"mcpServers": {
"japan-address-geocoding-mcp": {
"url": "https://jusho-mcp.easakura.workers.dev/mcp"
}
}
}.vscode/mcp.json
{
"mcpServers": {
"japan-address-geocoding-mcp": {
"url": "https://jusho-mcp.easakura.workers.dev/mcp"
}
}
}Available tools 3
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
geocode
geocode_address
日本の住所文字列から緯度経度と正規化された住所表記を取得する（国土地理院公式）。地図表示・距離計算・配送エリア判定などに使う。
reverse
reverse_geocode
緯度経度から日本の住所（都道府県・市区町村・町丁目）を取得する（国土地理院公式）。
zipcode
zipcode_to_address
日本の郵便番号（7桁）から住所（都道府県・市区町村・町域、ふりがな付き）を取得する。フォーム入力支援・住所データクレンジングに使う。
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://jusho-mcp.easakura.workers.dev/mcp | streamable-http | answering | 821 ms | 12 min ago |
| https://jusho-mcp.easakura.workers.dev/sse | sse | answering | 183 ms | 13 min ago |
Japan Address & Geocoding — questions
Answers built from our own checks of this server.
What can Japan Address & Geocoding do?
It exposes 3 tools, read directly from the server on our last check. Among them: geocode_address, reverse_geocode, zipcode_to_address. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
Is Japan Address & Geocoding working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 182 checks got a reply (50.0%), average response time 932 ms. The bar chart above shows every period we have measured.
How do I connect Japan Address & Geocoding?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Japan Address & Geocoding need an API key?
No. Japan Address & Geocoding completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Japan Address & Geocoding?
It answers our handshake in 932 ms on average, which is faster than 6% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.