30 tools for Japanese data: address, furigana, transit, Diet, holidays, weather, corporate registry
Connect Runs on your machine
claude mcp add japan-data-mcp -e EVM_PRIVATE_KEY=<EVM_PRIVATE_KEY> -- npx -y @mameta/[email protected]{
"mcpServers": {
"japan-data-mcp": {
"command": "npx",
"args": [
"-y",
"@mameta/[email protected]"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}{
"mcpServers": {
"japan-data-mcp": {
"command": "npx",
"args": [
"-y",
"@mameta/[email protected]"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}{
"servers": {
"japan-data-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mameta/[email protected]"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
EVM_PRIVATE_KEYOptional, secret | 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. |
Details
| Package | @mameta/[email protected] (NPM, stdio) |
| First published | 7 Jul 2026 |
| Last updated | 7 Jul 2026 |
| Registry name | io.github.Mameta29/japan-data-mcp |
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