Micro Data Api Factory

io.github.MatsushitaTokitsuguPublished by GitHub account MatsushitaTokitsuguv0.2.0Updated Oct 24, 2026

17+ Japan MCP tools (weather/calendar v2/local-pack/enrich). x402 on Base, wallet-free trial.

The publisher's own server: Mu

VerifiedStreamable HTTPWeb executableFinanceData & Analytics

Overview

AI-generated overview

A remote MCP endpoint offering Japanese public-data APIs, including weather, calendar, local-pack datasets and enrichment tools.

What you can do
The registry description says it exposes 17 or more Japan-focused MCP tools covering weather, a calendar v2, local-pack data and enrichment, and mentions x402 on Base with a wallet-free trial. The README describes a family of Japanese public data APIs for AI agents, with the ten JP Local Pack APIs open free of charge: payroll deductions, social insurance grades, withholding income tax, consumption tax, national holidays, corporate numbers, the qualified invoice issuer registry and Peppol invoice validation. It also notes a preview endpoint that can be tried without sign-up.
When to use it
Worth considering when an assistant needs Japanese public or business reference data, such as payroll and tax figures, holidays, corporate numbers or invoice validation, without building those lookups itself. The free JP Local Pack APIs make it a low-commitment way to test whether the data fits your workflow.
Requirements
It is a remote streamable HTTP endpoint, so no local runtime or package install is needed. The manifest declares no authentication, environment variables or headers. Network access to the endpoint is required, and the README lists separate kasanegi.com and api.kasanegi.com addresses for documentation and preview calls.
Before you install
The description mentions x402 on Base and a wallet-free trial, so paid or wallet-based access may apply to some tools; confirm which tools are free before relying on them. The README states the public repository is a companion to a private main repository, so the full tool set and its behavior are not fully documented here. No credentials are declared, but review what data leaves your environment when calling a third-party endpoint.

Installation

In SourceWeft

  1. Open Micro Data Api Factory 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.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.MatsushitaTokitsugu%2Fmicro-data-api-factory/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "micro-data-api-factory": {
      "type": "http",
      "url": "https://mcp-data-gateway.kasanegi123.workers.dev/mcp"
    }
  }
}

README

This repository has no README.

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v0.2.0LatestSep 16, 2026

Score

60% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

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