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Connect Gsi Japan Terrain Geocoding to ChatGPT and Claude

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. Access official Japanese elevation and address data through your AI.

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 · 4 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through GSI.

  1. 01

    Get location elevation profile

    This capability generates elevation profiles for up to 25 coordinates at once. It is useful for visualizing the terrain along a specific route or area.

  2. 02

    Get elevation

    This capability retrieves official elevation data for any coordinate in Japan using GSI 1m, 5m, or 10m laser DEMs. It returns null for water or unmeasured points.

  3. 03

    Geocode address

    This capability converts Japanese addresses or landmarks into precise longitude and latitude coordinates. It works best with Japanese input and can return multiple candidates for partial names.

  4. 04

    Compare places terrain

    This capability performs geocoding and elevation lookups for multiple locations in a single request. It allows your agent to compare the height of different places instantly.

Real work

What teams actually run

01

Hiking Route Planning

An agent generates a detailed elevation profile for a mountain trek using specific waypoints.

02

Flood Risk Assessment

Researchers query precise elevations to model how water might move through a specific area.

03

Real Estate Analysis

Users check the exact elevation of a plot of land relative to surrounding landmarks.

04

Game Environment Design

Developers pull real-world Japanese terrain data to inform digital landscapes.

One connector, every AI

GSI 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 GSI 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

867ms average. Fast in production.

GSI is checked daily against the live service.

Daily averagePeak 1063ms
Oct 3Today
Fastest day
648ms
Slowest day
1063ms
14-day trend
Slowing+8%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 4 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 GSI, so you can see the experience inside your AI.

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

GSI Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_nG5Qa5cK9gSn72j2hpzo8bopJr9rngWjYD6Xdi7c/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 — GSI capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "gsi-japan-terrain-geocoding-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_nG5Qa5cK9gSn72j2hpzo8bopJr9rngWjYD6Xdi7c/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 GSI in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work GSI owners hand off.

Professionals requiring authoritative Japanese geospatial data for technical or environmental analysis.

  • 01

    Outdoor App Developers

    They hand off terrain profile generation and coordinate lookups to the AI.

  • 02

    Civil Engineers

    They use the MCP to get precise elevation data for construction and site analysis.

  • 03

    Disaster Researchers

    They rely on the high-resolution DEM for flood and landslide modeling tasks.

FAQ

Questions GSI owners ask.

  • 01

    What is the resolution of the elevation data?

    The MCP provides access to GSI laser DEM data with resolutions of 1m, 5m, and 10m.

  • 02

    Does this MCP require an API key?

    No, this is a keyless MCP. Vinkius manages the connection so you can use it immediately.

  • 03

    Can I use English addresses?

    While it works, Japanese input is strongly recommended for the best accuracy with the GSI matcher.

  • 04

    How many points can I include in an elevation profile?

    You can request elevation for up to 25 coordinates in a single call.

  • 05

    Is this data different from Google Maps elevation?

    Yes, this uses the official GSI laser survey data, which offers much higher resolution in Japan than standard global datasets.

  • 06

    Do I need an API key or registration?

    No. Both the GSI elevation service and the address search are public endpoints. no key, no registration. Keep request rates reasonable and they work indefinitely.

  • 07

    Why does elevation sometimes return null?

    Points on water, or outside areas covered by the current DEM grids (some remote islands), have no elevation value. The response also tells you which DEM layer served the value (1m laser, 5m or 10m), so you can judge precision.

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