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Japan Elevation Tile Summary (GSI)

gsitiles/elevation-tile

Summarises one Geospatial Information Authority of Japan (GSI) elevation tile, addressed by the standard web-map z/x/y scheme: the lowest, highest and mean elevation in metres, how many of its 256 x 256 cells hold a value, and a 32 x 32 sample grid (every 8th cell, null where there is no value, such as sea). Layers: dem (10 m, zoom 1 to 14), dem5a and dem5b (5 m, zoom 1 to 15, covering part of Japan). A tile the layer does not cover, such as one outside Japan, fails with a provider error. Source: GSI Tiles (地理院タイル); served by Eden Engine; not an official GSI product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

Geospatial Information Authority of Japan

Data from the Geospatial Information Authority of Japan (国土地理院, GSI), GSI Tiles (地理院タイル), https://maps.gsi.go.jp/development/ichiran.html. Served by Eden Engine; not an official GSI product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

Install itCreate an account
agent
// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "gsitiles/elevation-tile" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "gsitiles/elevation-tile" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "gsitiles/elevation-tile", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "gsitiles/elevation-tile", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

ChargePrice
Per call
$0.0026
Updated
Oct 24, 2026

Input and output schemas

Input schema
input_schema.json
{
  "type": "object",
  "required": [
    "z",
    "x",
    "y"
  ],
  "properties": {
    "x": {
      "type": "integer",
      "maximum": 32767,
      "minimum": 0,
      "description": "Tile column in the standard web-map (XYZ) scheme, for example 14505 at zoom 14 for Mount Fuji."
    },
    "y": {
      "type": "integer",
      "maximum": 32767,
      "minimum": 0,
      "description": "Tile row in the standard web-map (XYZ) scheme, counted from the north, for example 6469 at zoom 14 for Mount Fuji."
    },
    "z": {
      "type": "integer",
      "maximum": 15,
      "minimum": 1,
      "description": "Zoom level, 1 to 14 for dem and 1 to 15 for dem5a and dem5b."
    },
    "layer": {
      "enum": [
        "dem",
        "dem5a",
        "dem5b"
      ],
      "type": "string",
      "default": "dem",
      "description": "Elevation layer: dem is 10 m (zoom 1 to 14), dem5a and dem5b are 5 m (zoom 1 to 15, partial coverage). Defaults to dem."
    }
  },
  "additionalProperties": false
}
Output schema
output_schema.json
{
  "type": "object",
  "required": [
    "tileSize",
    "validCells",
    "noDataCells",
    "minElevationM",
    "maxElevationM",
    "meanElevationM",
    "gridStep",
    "grid"
  ],
  "properties": {
    "grid": {
      "type": "array",
      "items": {
        "type": "array",
        "items": {
          "type": [
            "number",
            "null"
          ]
        }
      },
      "description": "32 rows of 32 samples, north to south and west to east: the cell at row r and column c of the tile is grid[r / 8][c / 8] for multiples of 8. Metres, or null where the cell has no value."
    },
    "gridStep": {
      "type": "integer",
      "description": "Spacing in cells between the samples in `grid` (8)."
    },
    "tileSize": {
      "type": "integer",
      "description": "Cells per side of the tile (256)."
    },
    "validCells": {
      "type": "integer",
      "description": "Cells that hold an elevation."
    },
    "noDataCells": {
      "type": "integer",
      "description": "Cells with no value (sea, or outside the survey)."
    },
    "maxElevationM": {
      "type": [
        "number",
        "null"
      ],
      "description": "Highest elevation in the tile, metres; null when no cell has a value."
    },
    "minElevationM": {
      "type": [
        "number",
        "null"
      ],
      "description": "Lowest elevation in the tile, metres; null when no cell has a value."
    },
    "meanElevationM": {
      "type": [
        "number",
        "null"
      ],
      "description": "Mean of the cells that hold a value, metres, rounded to 2 decimals; null when none."
    }
  },
  "description": "A summary of one 256 x 256 elevation tile.",
  "additionalProperties": true
}