Shirabe Japan Data Hub

dev.shirabePublished by shirabe.devOfficial publisherv0.1.0Updated Oct 24, 2026

Japan data tools for AI agents: calendar (rokuyo), address, name splitting, corporate number lookup

VerifiedStreamable HTTPWeb executableLocation & LifestyleBusiness & Commerce

Overview

AI-generated overview

Remote MCP server giving assistants Japanese calendar, address normalization, name splitting and corporate-number lookup tools.

What you can do
  • Look up Japanese calendar facts for a date: rokuyo, rekichu, eto, 24 solar terms and auspiciousness scores
  • Normalize free-form Japanese addresses against the official Address Base Registry, returning canonical form, components, postal code and coordinates
  • Split Japanese personal names into family and given parts with a confidence score
  • Look up a company by its 13-digit corporate number, or search the National Tax Agency registry by name
When to use it
Useful when an assistant handles Japanese data: picking auspicious dates, cleaning address or name fields in HR, CRM or form data, or resolving and verifying Japanese companies by name or corporate number.
Requirements
A remote streamable HTTP endpoint at shirabe.dev; no packages, environment variables or headers are declared. Network access to the endpoint is required.
Before you install
Address, name and company queries are sent to a third-party service. Results carry mandatory attribution requirements (CC BY 4.0 for address data, NTA attribution for corporate data) that must be preserved when reused. Name splitting and address matching return confidence or match levels that may be low.

Installation

In SourceWeft

  1. Open Shirabe Japan Data Hub 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/dev.shirabe%2Fhub/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": {
    "shirabe-japan-data-hub": {
      "type": "http",
      "url": "https://shirabe.dev/mcp"
    }
  }
}

Tools

5

lookup_calendar

Look up Japanese calendar

Look up Japanese calendar information for a given date: Rokuyo (six-day cycle such as Taian/Butsumetsu), Rekichu (almanac notes), Eto (sexagenary cycle), 24 solar terms, and purpose-based auspiciousness scores. Useful when an AI agent needs canonical Japanese calendar facts (e.g. choosing an auspicious date for a wedding or ceremony). Source: Shirabe Calendar API (shirabe.dev).

Parametersdaterequiredcategories

normalize_japanese_address

Normalize Japanese address

Normalize a free-form Japanese address against the official Address Base Registry (ABR, all 47 prefectures). Returns the canonical form, structured components (prefecture/city/town/block/building), postal code, WGS84 coordinates, match level (0-4) and confidence, plus mandatory CC BY 4.0 attribution. Useful when an AI agent must clean or de-duplicate Japanese B2B/customer records. Source: Shirabe Address API.

Parametersaddressrequired

split_japanese_name

Split Japanese personal name

Split a Japanese personal name into family and given parts using IPAdic person-name POS tags (with whitespace/length heuristics as fallback). Returns family, given, and a confidence score (0-1; warning when low). Useful for normalizing name fields in HR, CRM, or form data. Source: Shirabe Text API.

Parametersnamerequired

corporation_lookup

Look up Japanese corporation by number

Look up a Japanese company by its 13-digit corporate number (法人番号) against the National Tax Agency (NTA) corporate-number registry. Returns the registered trade name, head-office address, change history and other public fields as JSON, plus mandatory NTA attribution. Useful when an AI agent already has a corporate number and needs canonical company facts (e.g. validating or enriching a B2B record). To go the other way (company name → number), use corporation_search. Source: Shirabe Corporation API.

Parameterslaw_idrequired

Version history

1
  1. v0.1.0LatestSep 16, 2026

Score

83% 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
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

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

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.