Ja Normalize MCP Server

by kojimahyui01 Your server? Claim it

local only

Ja Normalize runs on your own machine — the client starts it, so there is no endpoint to ping. 427 installs a week from npm. Last commit 14 Sep 2026.

Holidays/business days for 200+ countries; Japanese address, name, bank and company normalization.

427

Installs / week

npm · ja-normalize-mcp

Stars

0 open issues

14 Sep 2026

Last commit

0 releases in 90 days

—

License

TypeScript

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 Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ja-normalize -- npx -y ja-normalize-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "ja-normalize": {
      "args": [
        "-y",
        "ja-normalize-mcp"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.ja-normalize]
command = "npx"
args = ["-y", "ja-normalize-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "ja-normalize": {
      "args": [
        "-y",
        "ja-normalize-mcp"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "ja-normalize": {
      "args": [
        "-y",
        "ja-normalize-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: X402_PRIVATE_KEY (Optional: Base wallet private key holding USDC for paid calls beyond the free daily quota). The author declared them in the registry entry; get the values from the project itself.

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Ja Normalize — questions

Answers built from our own checks of this server.

Why is there no uptime for Ja Normalize?

Ja Normalize runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package ja-normalize-mcp was installed 427 times last week.

How do I connect Ja Normalize?

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 runs locally, so the command pulls ja-normalize-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Ja Normalize?

The npm package ja-normalize-mcp was installed 427 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Ja Normalize open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.