Production-grade OpenStreetMap APIs without production-grade prices.

curl "https://api.terrarelay.eu/search?q=Damrak+1+Amsterdam&countrycodes=nl&format=jsonv2" \
  -H "Authorization: Bearer $TERRARELAY_KEY"

Nominatim-compatible

TerraRelay offers the same endpoints, parameters and response formats as the public Nominatim API. For most integrations, moving over means changing the base URL.

There are two deliberate, documented deviations: the API key is sent in an Authorization header instead of a URL, and /search requires the countrycodes parameter. Both are described in the migration guide.

Priced by engineering, not by margin

The low price comes from efficient, immutable datasets and a high degree of automation. It does not come from cutting corners: the website, API, documentation and support are built to the standard of much larger platforms.

EU hosted, transparent by intent

TerraRelay is hosted in the EU. We will publish the freshness of the data and the sources each country is built from. You may store and cache results without a time limit, provided you include the attribution the sources require.