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Gemini CLI

Japan Data MCP for Gemini CLI

io.github.mameta29/japan-data-mcp

30 tools for Japanese data: address, furigana, transit, Diet, holidays, weather, corporate registry

client:Gemini CLI transport:stdio runtime:npm

Install Japan Data MCP in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "japan-data-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mameta/japan-data-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
      }
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

Japan Data MCP in other clients

Japan Data MCP MCP server