MCP serverOfficial registry

Japan Data MCP

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

by io.github.Mameta29v1.1.0GitHub npm Website

Power your agent

Add this server

The publisher's own command. Not a PlugMCP endpoint.

Local command

npx -y @mameta/[email protected]

Credentials from the publisher

EVM_PRIVATE_KEY — Private key of a USDC-funded wallet used to pay per-call x402 fees. Optional: without it the server starts and lists all tools, but paid tool calls return a 'payments disabled' error.

Provider

Claude Code

EVM_PRIVATE_KEY=<secret> claude mcp add io.github.mameta29-japan-data-mcp -- npx -y @mameta/[email protected]

Run in a terminal.

Claude Desktop

{
  "mcpServers": {
    "io.github.mameta29-japan-data-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mameta/[email protected]"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<secret>"
      }
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Related MCP

Japan Data MCP

Add this server

Host a copy with our keys and logs.

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