# Nominatim

3 endpoints on Nominatim. Every one returns the same response shape and has a flat, published price in credits.

Category: [Maps, weather & space](https://onekey.dev/docs/categories/earth.md) · [Overview page](https://onekey.dev/platforms/nominatim)

## Endpoints

| Endpoint | What it does | Cost | Status |
| --- | --- | --- | --- |
| [`lookup`](https://onekey.dev/docs/api/nominatim/lookup.md) | Look up OSM objects by id (e.g. R62422, N123, W456). | 5 credits | beta |
| [`reverse`](https://onekey.dev/docs/api/nominatim/reverse.md) | Reverse geocoding of a coordinate to the nearest address. | 1 credit | beta |
| [`search`](https://onekey.dev/docs/api/nominatim/search.md) | Forward geocoding of a free-text place/address. | 5 credits | beta |

Every endpoint page has a **Field mapping** section showing which source field becomes which [unified field](https://onekey.dev/docs/schema.md) (fixed schema) or platform-specific `ext.` field.