Pricing

Pay per usage

French Elevation Lookup (IGN Altimetry)

Batch elevation (altitude) lookup for GPS coordinates via the official French IGN Geoplateforme altimetry API. High-precision RGE ALTI data over France, worldwide fallback. Free.

Pricing

Pay per usage

Rating

0.0

(0)

Developer

DEV DEV

Actor stats

Bookmarked

Total users

Monthly active users

4 days ago

Last modified

Input

Field	Type	Description
`coordinates`	array of strings	Points as `"latitude,longitude"` (WGS84 decimal), e.g. `"48.8566,2.3522"`.

Output

One item per point, status = found / not_found / error:

{
  "status": "found",
  "input": "48.8566,2.3522",
  "latitude": 48.8566,
  "longitude": 2.3522,
  "elevationM": 34.83,
  "accuracy": "Variable suivant la source de mesure",
  "source": "IGN Geoplateforme (RGE ALTI / world)"
}

Use cases

Enrich real-estate, agriculture or insurance datasets with precise ground elevation.
Outdoor & sports apps: altitude of trailheads, summits, race checkpoints.
Flood-risk screening: compare property elevation with nearby river levels.
Solar/telecom site planning: quick terrain elevation checks in batch.

Limitations & fair use

Free public IGN service (Geoplateforme, open licence): requests are batched (20 points/call) with polite delays. Highest precision over France and French overseas territories; worldwide fallback is coarser. -99999 sentinel values are returned as not_found.

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