Nominatim
Open-source geocoding, search, and place detail via Nominatim.
Nominatim is the geocoding and search engine that powers OpenStreetMap.org. It can be used via the public OSM instance or self-hosted.
Capabilities
| Capability | Description |
|---|---|
| Search | Place text search over OSM data |
| Geocoding | Address-to-coordinate and reverse geocoding |
| Place Info | Fetch place detail by OSM ID |
Configuration
In Settings → Integrations, click the settings icon on the Nominatim card.
| Field | Value |
|---|---|
| Host | Base URL of the Nominatim instance. Defaults to https://nominatim.openstreetmap.org (public OSM server). For self-hosted use your instance URL, e.g. http://localhost:8080. |
No API key is required for the public OSM instance. Click Test Connection before saving.
Notes
Barrelman outranks Nominatim for geocoding, so when both are configured Nominatim only serves coordinates Barrelman has no data for — which keeps you well inside the public instance's rate limit.
The public Nominatim instance enforces a usage policy — maximum 1 request/second, no bulk geocoding. For production use, self-host Nominatim or use a hosted provider. See nominatim.org for self-hosting instructions.