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fastCRW Pergamon
Geocoding

Open Topo Data

api.opentopodata.org

Elevation and bathymetry lookup for one or many coordinates from open raster datasets — SRTM, ASTER, NED, EU-DEM, Mapzen, ETOPO1, GEBCO, EMOD, BKG, Swisstopo and NZ DEM — returning a JSON elevation per point in a Google Elevation API-compatible shape.

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1Request

1 credit⌘ ↵
Code follows the fields above
curl "https://api.fastcrw.com/v1/data/opentopodata/datasets" \
  -H "Authorization: Bearer $FASTCRW_API_KEY"

2Response example

A sample shape. Press Run to see live data from Open Topo Data.

JSON
{
  "results": [
    {
      "child_datasets": [],
      "name": "aster30m"
    },
    {
      "child_datasets": [],
      "name": "bkg200m"
    },
    {
      "child_datasets": [],
      "name": "emod2018"
    },
    {
      "child_datasets": [],
      "name": "etopo1"
    },
    {
      "child_datasets": [],
      "name": "eudem25m"
    },
    {
      "child_datasets": [],
      "name": "gebco2020"
    },
    {
      "child_datasets": [],
      "name": "mapzen"
    },
    {
      "child_datasets": [],
      "name": "ned10m"
    },
    {
      "child_datasets": [],
      "name": "nzdem8m"
    },
    {
      "child_datasets": [],
      "name": "srtm30m"
    },
    "… 2 more items"
  ],
  "status": "OK"
}

Attribution: Elevation data via Open Topo Data (api.opentopodata.org). Underlying datasets belong to their respective providers (USGS, NASA, NOAA, EEA, LINZ, BKG, Swisstopo, GEBCO, EMODnet, Mapzen). Not affiliated with or endorsed by Open Topo Data.

Licence: Open Topo Data publishes no licence for the API output. The documentation's only terms for the free public instance are limits: "Max 100 locations per request. Max 1 call per second. Max 1000 calls per day." The server software is MIT-licensed on GitHub (ajnisbet/opentopodata), but that grant covers the code, not the elevation data and not the responses. The elevation itself comes from third-party rasters which the site names by provider - USGS, NASA, NOAA, EEA, LINZ, BKG, Swisstopo, GEBCO, EMODnet, Mapzen - and their individual licences are not restated as a grant to us. Because the service grants nothing explicit over its output, we claim no rights: commercialUse and redistribution are both false.

Ask with this source

A prompt for your agent that names this source and how to call it through the crw MCP.

  • Available datasets

    Use Open Topo Data (opentopodata) from fastCRW Pergamon, capability "Available datasets" (datasets). You do not know which dataset name this deployment exposes and need the list before querying elevations. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "opentopodata" and capability "datasets". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • Point elevation

    Use Open Topo Data (opentopodata) from fastCRW Pergamon, capability "Point elevation" (elevation). You have one or more latitude/longitude pairs and need ground elevation or ocean depth at each of them. Example options: dataset=srtm90m, locations=51.5074,-0.1278. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "opentopodata" and capability "elevation". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>