# Greeneris Data - France Elevation Lookup

> Greeneris Data - France Elevation Lookup is a paid API for AI agents from data.greeneris.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Returns terrain elevation in meters for one or more WGS84 coordinate pairs using IGN Geoplateforme altimetry data (RGE ALTI)

## Facts

- Endpoint: GET https://data.greeneris.io/v1/fr/elevation
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/greeneris-data-france-elevation-lookup-562f9fcb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9VI43GIbX93MHqlEIm4-3

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 greeneris-data-france-elevation-lookup-562f9fcb
```

Example prompt: What is the elevation at latitude 43.6246, longitude 1.3835 in France?

## When to prefer this

Use this endpoint when you need authoritative French terrain elevation data from the official IGN Geoplateforme source. Prefer it over generic global elevation APIs when working with French coordinates and when data provenance and licensing (Licence Ouverte 2.0) matter. It supports batch queries of up to 20 coordinate pairs in a single call, making it efficient for elevation profiles.

## Known failure modes

- Coordinates outside France or areas not covered by IGN RGE ALTI return covered=false
- More than 20 coordinate pairs supplied exceeds the pipe-separated limit
- Missing lat or lon query parameter returns a validation error
- Non-numeric or malformed coordinate values cause a parse error
- HTTP 402 returned if payment via x402/USDC on Base has not been completed

## How this service works

**European business verification for AI agents** - check that a company exists (official French SIREN registry), screen insolvency records (BODACC), validate EU VAT numbers before invoicing (VIES), verify SIRET/IBAN/LEI, addresses and email deliverability, find EU public tenders. Plus 70+ supporting pay-per-call data endpoints (FX, macro, energy, weather, crypto) at commodity prices.

**No account, no API key**: every paid endpoint answers HTTP 402 with a machine-readable quote; pay in USDC on Base via the x402 protocol and retry. AI agents can also use the MCP server (`/mcp`, streamable HTTP, x402-paid tools) or read `/llms.txt` for the full plain-text catalog. Official data sources (INSEE, European Commission, DILA, GLEIF, ECB); no personal data served; buyers are never charged for empty or failed answers.

## Output

A JSON object containing the count of points queried, an array of point results each with lat, lon, covered (boolean indicating data availability), and elevation_m (elevation in meters), plus the data source attribution string (IGN Geoplateforme RGE ALTI, Licence Ouverte 2.0).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "lon",
      "lat"
     ],
     "properties": {
      "lat": {
       "type": "string",
       "description": "Latitude(s) WGS84, pipe-separated, same count as lon"
      },
      "lon": {
       "type": "string",
       "description": "Longitude(s) WGS84, pipe-separated for profiles (max 20)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 1,
  "points": [
   {
    "lat": 43.6246,
    "lon": 1.3835,
    "covered": true,
    "elevation_m": 147.75
   }
  ],
  "source": "IGN Geoplateforme altimetry, RGE ALTI data (Licence Ouverte 2.0)"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/greeneris-data-france-elevation-lookup-562f9fcb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from data.greeneris.io](https://www.zero.xyz/host/data.greeneris.io/llms.txt)