Japan Data MCP

An MCP server that gives AI agents (Claude Desktop, Cursor, Cline, …) one-call access to the agentic-jp.com suite of Japanese data APIs. Every call is settled per-use over the x402 payment protocol - no account, no subscription, no API key. It runs locally over stdio via the published package.

People who work with japan, usdc and x402 and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-07-22 · ★ 2 · #37 OF 66 MAINTAINED MAPS & LOCATION · VERIFIED 2026-09-18

Apache-2.0 · TypeScript servers · how we verify → /methodology

01 · Install Japan Data MCP

before you install - you'll need

EVM_PRIVATE_KEY

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add mameta29-japan-data-mcp -- npx -y @mameta/japan-data-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "mameta29-japan-data-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mameta/japan-data-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

npm package @mameta/japan-data-mcp - the @mameta scope differs from the repo owner (mameta29); confirm it's the project's official package

registry namespace io.github.Mameta29 is GitHub-verified and matches the repo owner

03 · Who maintains Japan Data MCP

Japan Data MCP is maintained by mameta29. It's the only MCP server we track from this author; the repo dates to Jul 2026.

04 · Facts

repository: github.com/mameta29/japan-data-mcp
website: https://agentic-jp.com/
category: maps & location - ranked #37 of 66 actively-maintained maps & location servers as of 2026-09-18.
registry: io.github.Mameta29/japan-data-mcp (active, first published 2026-07-07 · 2 versions)
packages: npm:@mameta/japan-data-mcp

05 · Japan Data MCP FAQ

What is Japan Data MCP?

Is Japan Data MCP still maintained?

Yes - as of 2026-09-18, its last commit was 2026-07-22. We re-verify nightly.

How do I install Japan Data MCP?

Run `npx -y @mameta/japan-data-mcp`. The README documents one environment variable (EVM_PRIVATE_KEY) to set first. You can also paste the ready-made client config above.

Does Japan Data MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

06 · Alternatives to Japan Data MCP

Alternatives to Japan Data MCP

Maintained maps & location servers if Japan Data MCP isn't the fit.

More maps & location MCP servers · Source Map Parser MCP · Measure Space MCP Server · Apple Maps (mgcrea) · Repeater Book

More TypeScript MCP servers · The Crawler · Devkit Server · Oracle · Qnap · see all