# Open Topo Data API

> Open Topo Data API on Apizie: 1 endpoint (Elevation) returned as clean JSON through one API key. 1 endpoint is live now. Call it over REST at https://apizie.tech/v1/places:opentopodata/{endpoint} or from Claude, ChatGPT and Cursor through the Apizie MCP server. Free plan: 1,000 requests a month.

- Project key: `places:opentopodata`
- Category: Places
- Status: live
- Source: https://www.opentopodata.org
- Page: https://apizie.tech/api/places/opentopodata
- OpenAPI: https://apizie.tech/api/places/opentopodata/openapi.json

Elevation for up to 100 coordinates from public datasets (SRTM, ASTER, EU-DEM and more). Public server: 1 call/s, 1,000 calls/day shared across Apizie, so results are cached for a week.

## Endpoints

### Elevation
`GET https://apizie.tech/v1/places:opentopodata/elevation`

| Parameter | Type | Required | Description |
|---|---|---|---|
| locations | string | yes | lat,lon/lat,lon (max 100) |
| dataset | string | no |  |

## Example
```
curl "https://apizie.tech/v1/places:opentopodata/elevation" \
  -H "x-api-key: $APIZIE_KEY"
```

## FAQ

### How do I call the Open Topo Data API?
Create a free Apizie key, then send GET https://apizie.tech/v1/places:opentopodata/elevation with the header x-api-key. Every endpoint returns { project, data, timestamp }.

### Is the Open Topo Data API free on Apizie?
Yes. The Free plan includes 1,000 requests a month at 100 requests a minute, no credit card.

### Can AI agents use the Open Topo Data API?
Yes. Add the Apizie MCP server (https://apizie.tech/mcp) to Claude, ChatGPT, Cursor or VS Code, then ask in plain language. The agent calls run_scraper with project key places:opentopodata.

### What is the status of the Open Topo Data API?
Live: works with just an Apizie key