plugmyagent

Open Topo Data

Maps & Geocoding No key

AuthenticationNo key
Rate limitMax 100 locations per request, 1 call per second, 1,000 calls per day on the free public API.

Documentation: www.opentopodata.org ยท Checked Sep 13, 2026

About

Open Topo Data answers a simple question: how high is this spot? Give it one coordinate or a whole list and it returns elevation in meters from open terrain datasets like NASA's and the USGS's. The API speaks the same language as Google's old elevation API, so switching is easy.

Details

No key needed. You can call it right away.

Auth: No key

Rate limit: Max 100 locations per request, 1 call per second, 1,000 calls per day on the free public API.

Verified: 2026-09-13

Best for: personal developer fun

Read the docs Back to catalog

Setup

  1. No signup. Call the public API directly.
  2. Pick a dataset: srtm30m for most of the world, ned10m for the US.
  3. Pass up to 100 locations at once, separated by pipes, e.g. locations=34.05,-118.24|35.68,139.69.
  4. Stay under 1 call per second, or host your own copy with Docker for unlimited use.
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