Ja Normalize runs on your own machine — the client starts it, so there is no endpoint to ping. 46 installs a week from npm. Last commit 14 Sep 2026.
Holidays/business days for 200+ countries; Japanese address, name, bank and company normalization.
Nothing serious here today
Today is the operative word: we check Ja Normalize every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add ja-normalize -- npx -y ja-normalize-mcp{
"mcpServers": {
"ja-normalize": {
"command": "npx",
"args": [
"-y",
"ja-normalize-mcp"
]
}
}
}[mcp_servers.ja-normalize]
command = "npx"
args = ["-y", "ja-normalize-mcp"]{
"mcpServers": {
"ja-normalize": {
"command": "npx",
"args": [
"-y",
"ja-normalize-mcp"
]
}
}
}{
"servers": {
"ja-normalize": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"ja-normalize-mcp"
]
}
}
}Optional settings from the registry entry, left out of the block above:
X402_PRIVATE_KEY (Optional: Base wallet private key holding USDC for paid calls beyond the free daily quota).
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Ja Normalize — questions
Answers built from our own checks of this server.