Koskamo

Japan Elevation (GSI DEM) MCP

A remote MCP server providing ground elevation data in metres for locations in Japan using the Geospatial Information Authority of Japan (GSI) DEM. It supports single point queries, batch elevation for up to 50 points, and path profiles for ordered point sequences, serving construction, solar, flood, and outdoor AI agents.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Japan Elevation (GSI DEM) MCP logo, by Donnie MorrisonCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by Donnie Morrison
MCP endpoint (Streamable HTTP)
https://jp-elevation-mcp.donniertf.workers.dev/mcp
Vendor documentation

What you can do with it

  • Retrieve ground elevation in metres for a specific latitude and longitude in Japan
  • Get elevation data for up to 50 latitude/longitude points in a single batch request
  • Generate elevation profiles along a path defined by up to 50 ordered points

Source and maintenance

Community listingRegistry 1.0.0
mcp-registry: io.github.donniertf-hub/jp-elevation-mcp@1.0.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
jp-elevation-mcp 1.0.0
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Japan Elevation (GSI DEM). elevation is free. Subscribe (¥900/month, cancel anytime) at https://jp-elevation-mcp.donniertf.workers.dev/buy for the paid tools, then pass access_token.

Tools

3 advertised

elevation
Advertised by the server during the last successful anonymous check.

FREE. Elevation (m) for one lat/lon in Japan via GSI DEM.

elevation input schema
{
  "type": "object",
  "required": [
    "lat",
    "lon"
  ],
  "properties": {
    "lat": {
      "type": "number"
    },
    "lon": {
      "type": "number"
    }
  }
}
batch_elevation
Advertised by the server during the last successful anonymous check.

PRO. Elevation for up to 50 lat/lon points.

batch_elevation input schema
{
  "type": "object",
  "required": [
    "points"
  ],
  "properties": {
    "points": {
      "type": "array",
      "items": {
        "type": "object"
      }
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}
path_profile
Advertised by the server during the last successful anonymous check.

PRO. Elevations for up to 50 ordered points (path profile).

path_profile input schema
{
  "type": "object",
  "required": [
    "points"
  ],
  "properties": {
    "points": {
      "type": "array",
      "items": {
        "type": "object"
      }
    },
    "access_token": {
      "type": "string",
      "description": "Subscriber token from /success (or Authorization: Bearer)"
    }
  }
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
537 ms
95th percentile latency
537 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 537 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http japan-elevation-gsi-dem-mcp https://jp-elevation-mcp.donniertf.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add japan-elevation-gsi-dem-mcp --url https://jp-elevation-mcp.donniertf.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable japan-elevation-gsi-dem-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "japan-elevation-gsi-dem-mcp": {
      "url": "https://jp-elevation-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "japan-elevation-gsi-dem-mcp": {
      "type": "streamableHttp",
      "url": "https://jp-elevation-mcp.donniertf.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start japan-elevation-gsi-dem-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "japan-elevation-gsi-dem-mcp": {
      "type": "http",
      "url": "https://jp-elevation-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http japan-elevation-gsi-dem-mcp https://jp-elevation-mcp.donniertf.workers.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "japan-elevation-gsi-dem-mcp": {
      "url": "https://jp-elevation-mcp.donniertf.workers.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "japan-elevation-gsi-dem-mcp": {
      "serverUrl": "https://jp-elevation-mcp.donniertf.workers.dev/mcp"
    }
  }
}

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