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Official MCP servers for Japanese services (2026)

This page lists only MCP servers that the vendors of widely used Japanese SaaS products publish themselves. Each one was checked against the vendor’s official documentation or official GitHub repository on 2026-10-15. Configs are copied from those docs, with API keys left as placeholders.

freee-mcp

What it does: Operate nine freee areas from chat: accounting, HR & payroll, invoicing, time tracking, sales, IT management, tax filing, fixed assets and business start-up (for example “create an invoice” or “show this month’s trial balance”).

Install config

Claude Code (terminal)

claude mcp add --transport http freee https://mcp.freee.co.jp/mcp

JSON (Cursor, Claude Code .mcp.json, etc.)

{
  "mcpServers": {
    "freee": {
      "type": "http",
      "url": "https://mcp.freee.co.jp/mcp"
    }
  }
}

In Claude Desktop or claude.ai, open Customize → Connectors → Add custom connector and enter https://mcp.freee.co.jp/mcp.

Notes: The remote version is hosted by freee; you only sign in to freee and approve the app. freee asks you to install its Agent Skills (freee-api-skill.zip) so the AI uses the tools correctly. An open-source local version (npx freee-mcp) is also available.

Official links: Official documentation · GitHub · Socketlist server page

Money Forward Cloud Accounting MCP

What it does: Read business info and fiscal-year settings, get, create and update journal entries, get trial balances and trends, read accounts, partners, departments and tax categories, and create bank transaction records.

Install config

Claude Code (terminal)

claude mcp add --transport http mfc_ca https://beta.mcp.developers.biz.moneyforward.com/mcp/ca/v3

JSON (Cursor, Claude Code .mcp.json, etc.)

{
  "mcpServers": {
    "mfc_ca": {
      "type": "http",
      "url": "https://beta.mcp.developers.biz.moneyforward.com/mcp/ca/v3"
    }
  }
}

In Claude Desktop or claude.ai, open Customize → Connectors → Add custom connector and enter https://beta.mcp.developers.biz.moneyforward.com/mcp/ca/v3.

Notes: Free for Cloud Accounting and Tax Return users. An admin must first enable the App Portal and grant permissions. API-key authentication (Mf-API-Key header) is available for working across several businesses, but as of 24 September 2026 Claude Desktop and Claude Web do not support it.

Official links: Official documentation · developers.biz.moneyforward.com/mcp · Socketlist server page

kintone MCP server

What it does: Get, add, update and delete kintone records, change app fields and layouts, process management, and manage spaces.

Install config

Claude Code (terminal)

claude mcp add --env KINTONE_BASE_URL=https://example.cybozu.com --env KINTONE_USERNAME=username --env KINTONE_PASSWORD=password --transport stdio kintone -- docker run -i --rm -e KINTONE_BASE_URL -e KINTONE_USERNAME -e KINTONE_PASSWORD ghcr.io/kintone/mcp-server:latest

JSON (Cursor, Claude Code .mcp.json, etc.)

{
  "mcpServers": {
    "kintone": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "KINTONE_BASE_URL",
        "-e",
        "KINTONE_USERNAME",
        "-e",
        "KINTONE_PASSWORD",
        "ghcr.io/kintone/mcp-server:latest"
      ],
      "env": {
        "KINTONE_BASE_URL": "https://example.cybozu.com",
        "KINTONE_USERNAME": "username",
        "KINTONE_PASSWORD": "password"
      }
    }
  }
}

Notes: Install via Docker, npm (@kintone/mcp-server) or a Claude Desktop MCPB package. Replace the base URL, username and password in the example with your own.

Official links: Official documentation · Socketlist server page

Backlog MCP server

What it does: Work with Backlog projects, issues and comments, wikis, Git repositories and pull requests, notifications and documents.

Install config

Claude Code (terminal)

claude mcp add --env BACKLOG_DOMAIN=your-domain.backlog.com --env BACKLOG_API_KEY=your-api-key --transport stdio backlog -- npx backlog-mcp-server

JSON (Cursor, Claude Code .mcp.json, etc.)

{
  "mcpServers": {
    "backlog": {
      "command": "npx",
      "args": [
        "backlog-mcp-server"
      ],
      "env": {
        "BACKLOG_DOMAIN": "your-domain.backlog.com",
        "BACKLOG_API_KEY": "your-api-key"
      }
    }
  }
}

Notes: MIT-licensed; Nulab’s support desk does not cover it (report problems on GitHub Issues). A Docker config is also in the official README.

Official links: Official documentation · Socketlist server page

Chatwork MCP server

What it does: Exposes 31 Chatwork API v2 operations as tools, covering rooms, messages, tasks, files and contacts.

Install config

Claude Code (terminal)

claude mcp add chatwork -e CHATWORK_API_TOKEN=YOUR_CHATWORK_API_TOKEN -- npx -y @chatwork/mcp-server

JSON (Cursor, Claude Code .mcp.json, etc.)

{
  "mcpServers": {
    "chatwork": {
      "command": "npx",
      "args": [
        "@chatwork/mcp-server"
      ],
      "env": {
        "CHATWORK_API_TOKEN": "YOUR_CHATWORK_API_TOKEN"
      }
    }
  }
}

Notes: Issue an API token in Chatwork under Service integration → API token; organisation plans need admin approval. The Claude Code command is the one in the official README.

Official links: Official documentation · Socketlist server page

Ekispert API MCP server (駅すぱあと)

What it does: Call Ekispert (駅すぱあと) API route search and station information from AI agents.

Install config

Claude Code (terminal)

claude mcp add --transport http ekispert-api-mcp-server https://api-mcp.ekispert.jp/mcp --header 'ekispert-api-access-key: YOUR_ACCESS_KEY_HERE'

JSON (Cursor, Claude Code .mcp.json, etc.)

{
  "mcpServers": {
    "ekispert-api-mcp-server": {
      "type": "http",
      "url": "https://api-mcp.ekispert.jp/mcp",
      "headers": {
        "ekispert-api-access-key": "YOUR_ACCESS_KEY_HERE"
      }
    }
  }
}

In Claude Desktop or claude.ai, open Customize → Connectors → Add custom connector and enter https://api-mcp.ekispert.jp/mcp.

Notes: Needs an Ekispert API access key (a 90-day free trial is available). Requests through MCP count toward your API usage and fees as normal. The server code is not public; the GitHub repository holds the official docs.

Official links: Official documentation · Socketlist server page

Before you start

Related: Best MCP servers for Claude Code (2026) · How to add MCP servers to Claude Code · MCP config generator

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