# Ground Elevation Lookup by Coordinate or Place Name

> Ground Elevation Lookup by Coordinate or Place Name is a paid API for AI agents from eltociear-skill-audit.hf.space, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the ground elevation in metres above sea level for a given latitude/longitude coordinate pair or a named place

## Facts

- Endpoint: POST https://eltociear-skill-audit.hf.space/world/elevation
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ground-elevation-lookup-by-coordinate-or-place-name-65433505
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Tb4ExRBF7D4J40ihdeVUs

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ground-elevation-lookup-by-coordinate-or-place-name-65433505 -d '<json body>'
```

Example prompt: What's the ground elevation of Denver, Colorado in metres above sea level?

## When to prefer this

Choose this endpoint when you need a quick, single-point ground elevation lookup by either a place name or raw coordinates, and want the result in metres without having to manage a separate geocoding step. It is ideal for lightweight geospatial enrichment, route planning checks, or any workflow that needs altitude data without integrating a full DEM (digital elevation model) API. It accepts natural-language place names, making it especially convenient when coordinates are not already available.

## Known failure modes

- Unrecognisable place name causes geocoding to fail with an error response
- Latitude or longitude values out of range (-90 to 90 / -180 to 180) may return an error
- Ocean or water-body coordinates may return zero or a negative value representing sea-floor depth rather than land elevation
- Missing both location and coordinate fields returns a validation error
- Remote or sparsely mapped regions may return null or low-confidence elevation data

## How this service works

How high above sea level is this point? Ground elevation in metres for a place name or a coordinate pair

## Output

Returns a numeric ground elevation value in metres above sea level for the requested point. When a place name is supplied it is geocoded automatically before the elevation is resolved. The response is a JSON object containing the elevation in metres.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "latitude": {
   "type": "number",
   "description": "Latitude (use instead of location)"
  },
  "location": {
   "type": "string",
   "description": "Place name, e.g. 'Tokyo' — geocoded for you"
  },
  "longitude": {
   "type": "number",
   "description": "Longitude (use instead of location)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "latitude": 35.68,
  "location": "Tokyo, Japan",
  "longitude": 139.69,
  "elevation_m": 38
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ground-elevation-lookup-by-coordinate-or-place-name-65433505/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from eltociear-skill-audit.hf.space](https://www.zero.xyz/host/eltociear-skill-audit.hf.space/llms.txt)