MCP For Claude Marketplace
Tokyo Open Data Portal

Tokyo Open Data Portal MCP Connector for Claude

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Tokyo Metropolitan Government's official open data portal: 9,600+ datasets on disaster prevention, tourism, transport (Toei subway), health, environment and the city budget — searchable with pagination, keyless.

5 tools Official Updated Oct 1, 2026 Official Vinkius Partner
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The official open data catalog of the Tokyo Metropolitan Government as a single MCP server — one of the largest municipal open data portals in the world.

What you can do

  • Search 9,600+ datasets — disaster prevention (433), daily life (1,149), health (527), education (827), environment (616), tourism (207), culture (471), infrastructure (808), industry (711), digital tech (95), sports (116)
  • Inspect full metadata — publisher bureau, license, update frequency and every downloadable resource (CSV, XLSX, GeoJSON...) with direct URLs
  • Preview raw data — fetch the first rows of a resource before deeper analysis
  • Browse by bureau — explore entire catalogues of each Tokyo government office (General Affairs alone publishes 2,178 datasets)

What lives here

Real-time-adjacent civic data: earthquake and flood risk maps, radiation measurements, Toei transport stats, COVID-era health data, electricity usage, population by ward, tourism statistics, cherry-blossom and festival data, Tokyo budget documents — the data behind the world's largest metropolis.

Who is this for?

Urban researchers, Japan analysts, journalists, real-estate and tourism analysts, civic-tech builders and AI agents that need authoritative Tokyo city data.

japantokyoopen-datamunicipal-datadisaster-preventiontourism-data

5 tools expose this connector's capabilities to your AI agent.

get_dataset

Use ids/slugs from search_datasets (e.g. t000018d0000000001). Get full metadata of a Tokyo open dataset: description, publisher, and all downloadable resources

search_datasets

data.metro.tokyo.lg.jp. IMPORTANT: query terms go against the TITLE and are Japanese (e.g. 観光 tourism, 防災 disaster prevention, 電力 power, コロナ covid). Filter with group (e.g. c023 観光, c015 防災 — see list_categories) and format (e.g. CSV, XLSX). Paginate with page/page_size — never fetch all pages. Search the 9,600+ open datasets of the Tokyo Metropolitan Government (disaster, tourism, transport, health, environment...)

preview_resource

Take resource URLs from get_dataset. Best for CSV/JSON; binary formats return limited bytes. Great for inspecting actual rows before deeper analysis. Preview the raw content of a dataset resource (CSV/XLSX/JSON first rows)

list_categories

Use group ids in search_datasets. List the 12 thematic categories of the Tokyo open data portal (disaster, tourism, health...)

list_organizations

g. 総務局 General Affairs (2178 datasets), 交通局 Transportation Bureau (Toei subway/bus), 環境局 Environment, etc. Useful to explore a bureau's entire output via search_datasets with its name. List the Tokyo government bureaus publishing open data (with dataset counts)

See how to talk to your AI agent using Tokyo Open Data Portal.

Find Tokyo datasets about tourism and tell me what's available

🗼 **Tourism datasets in Tokyo's portal (group c023)** 207 datasets, top hits for 観光: - **交通局の概要** (Transportation Bureau overview) — Toei subway/bus ridership, CSV - **観光客数等の実態調査** — visitor count surveys by area - Hotel/lodging statistics by ward Most are CSV/XLSX. Want a preview of the visitor survey rows?

What disaster prevention data does Tokyo publish?

🌊 **Disaster prevention (防災) — 433 datasets** Highlights: - Earthquake hazard maps by ward (GeoJSON) - Flood risk zones for the Arakawa/Tama rivers - Radiation monitoring measurements - Emergency shelter locations (CSV) Critical for any Japan-safety application. I can preview the shelter list or extract GeoJSON for a specific ward.

Which Tokyo bureau publishes the most data?

🏛️ **Top publishers (organization_list)** 1. 総務局 (General Affairs) — 2,178 datasets: population, statistics, finances 2. 交通局 (Transportation) — Toei subway & bus data 3. 環境局 (Environment) — air quality, energy General Affairs dominates because it aggregates city-wide statistics. Want me to list its datasets?

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

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