Japan Business Tools

jp.ossaltv0.6.0Updated Oct 7, 2026

Japanese holidays, business days, postal codes, addresses and corporate numbers from official data.

VerifiedStreamable HTTPWeb executableBusiness & CommerceLocation & Lifestyle

Overview

AI-generated overview

Lets an assistant look up Japanese holidays, business days, postal codes, addresses, and corporate numbers from official data.

What it does
This remote MCP server exposes reference lookups for Japan: national holidays, business-day calculations, postal codes, addresses, and corporate numbers (houjin bangou). It is hosted at a fixed endpoint, so the assistant calls it directly rather than running anything locally. The manifest does not list individual tool names, so the exact call surface is not documented here.
When to use it
Useful when a task depends on Japanese calendar or address data, such as scheduling around holidays, counting business days, validating a Japanese address or postal code, or resolving a corporate number. It is a narrow reference service, not a general-purpose tool.
Requirements
A remote MCP client that supports streamable HTTP, pointed at the provider's endpoint. No package installation, environment variables, headers, or authentication are declared, so no credentials appear to be needed.
Before you install
The manifest declares no authentication, so requests go to a third-party host; avoid sending confidential data in queries. The provider is not a well-known vendor, and no README or tool list is available, so verify accuracy of returned holiday, address, and corporate-number data before relying on it.

Installation

In SourceWeft

  1. Open Japan Business Tools in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "jp-biz-tools": {
      "type": "http",
      "url": "https://biz.ossalt.jp/mcp"
    }
  }
}

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v0.6.0LatestOct 7, 2026