Japan Utils MCP Server: Install & Setup

Install Japan Utils in Claude Code

Claude Code

claude mcp add japan-utils -- uvx japan-utils-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "japan-utils": {
      "command": "uvx",
      "args": [
        "japan-utils-mcp"
      ]
    }
  }
}

Japan utilities for AI agents: era, romaji, postal codes, holidays, kana, name splitting.

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add japan-utils -- uvx japan-utils-mcp

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