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Connect Tokyo Open Data Portal to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Pull official municipal data directly into your AI agent.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 5 capabilities

We ship only the actions that matter.

Capability set01 / 02

01-03

3 capabilities in this set.

Part of 5 available through Tokyo Open Data Portal.

  1. 01

    Get dataset

    Retrieves full metadata for a specific Tokyo dataset using its ID or slug. It provides the publisher, description, and direct download URLs for all available resources.

  2. 02

    Search datasets

    Searches the 9,600+ available datasets using Japanese query terms. You can filter results by specific thematic groups or file formats like CSV and XLSX.

  3. 03

    Preview resource

    Fetches the first few rows of a dataset resource. This is useful for checking the structure of CSV, JSON, or XLSX files before performing deeper analysis.

Capability set02 / 02

04-05

2 capabilities in this set.

Part of 5 available through Tokyo Open Data Portal.

  1. 04

    List categories

    Returns the 12 primary thematic categories used by the Tokyo data portal. Use these category IDs to narrow down your searches.

  2. 05

    List organizations

    Lists the various Tokyo government bureaus that publish data. It shows how many datasets each office, such as the General Affairs bureau, has released.

Real work

What teams actually run

01

Disaster Risk Mapping

An agent pulls GeoJSON flood and earthquake hazard maps to help visualize city risks.

02

Transport Analysis

You use the MCP to get Toei subway and bus ridership stats for transit studies.

03

Tourism Trend Research

An agent gathers hotel statistics and visitor counts to analyze seasonal tourism patterns.

04

Environmental Monitoring

Researchers query radiation measurements and air quality data published by the Environment Bureau.

One connector, every AI

Tokyo Open Data Portal works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Tokyo Open Data Portal to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

874ms average. Fast in production.

Tokyo Open Data Portal is checked daily against the live service.

Daily averagePeak 1002ms
Oct 3Today
Fastest day
698ms
Slowest day
1002ms
14-day trend
Stable-2%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 5 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Tokyo Open Data Portal, so you can see the experience inside your AI.

It does not authenticate your account with Tokyo Open Data Portal. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Tokyo Open Data Portal Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_x4YoF1RuLf27Tk8YVzy8nzpffq4PUvVgD4ud5cPe/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Tokyo Open Data Portal capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "tokyo-open-data-portal-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_x4YoF1RuLf27Tk8YVzy8nzpffq4PUvVgD4ud5cPe/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Tokyo Open Data Portal in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Tokyo Open Data Portal owners hand off.

This MCP is built for professionals who need authoritative, primary-source data from the Tokyo Metropolitan Government.

  • 01

    Urban Researchers

    They use the agent to gather population, infrastructure, and environmental data for city planning studies.

  • 02

    Journalists

    They query official statistics on budgets, health, and disaster prevention for reporting.

  • 03

    Real Estate and Tourism Analysts

    They pull ward-level statistics and visitor trends to inform market insights.

  • 04

    Civic-tech Developers

    They use the capability to find reliable datasets to power local applications and maps.

FAQ

Questions Tokyo Open Data Portal owners ask.

  • 01

    Do I need an API key to use this MCP?

    No, this MCP works without individual API keys as it connects directly to the open data portal.

  • 02

    What file formats can I get from the Tokyo portal?

    The portal provides various formats including CSV, XLSX, and GeoJSON.

  • 03

    Should I search in English or Japanese?

    For best results, use Japanese terms for your queries, as the dataset titles are indexed in Japanese.

  • 04

    Can I see what is inside a dataset before downloading it?

    Yes, you can use the preview capability to see the first few rows of a CSV or JSON resource.

  • 05

    Which AI clients can use this MCP?

    This MCP works with any compatible client, including Claude, Cursor, Windsurf, and VS Code.

  • 06

    Do I need an API key or registration?

    No. The portal is a standard CKAN catalog with a fully public API. search, metadata, categories and organizations all work without authentication.

  • 07

    Why must search terms be in Japanese?

    Dataset titles are published in Japanese; the Solr index matches title: term queries, and English terms like "tourism" match nothing. Use Japanese keywords (観光, 防災, 人口) or browse by category/organization instead. The list_categories capability includes the English meaning of each category.

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