Address To Zip is listed as active in the registry but did not answer our last check. It exposes 2 tools.
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.
What changed 5
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 September 2026. No other catalogue keeps this.
Address To Zip does not always answer
Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.
claude mcp add address-to-zip --transport http https://addresstozip.jp/mcphttps://addresstozip.jp/mcp[mcp_servers.address-to-zip]
url = "https://addresstozip.jp/mcp"{
"mcpServers": {
"address-to-zip": {
"url": "https://addresstozip.jp/mcp"
}
}
}{
"servers": {
"address-to-zip": {
"type": "http",
"url": "https://addresstozip.jp/mcp"
}
}
}Available tools 2
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
search_address
lookup_zipcode
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://addresstozip.jp/mcp | streamable-http | answering | 235 ms | 8 min ago |
Alternatives to Address To Zip
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Address To Zip — questions
Answers built from our own checks of this server.