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Nominatim Reverse API

Reverse geocoding — find the closest OSM object to a coordinate.

Nominatim Reverse API is one of 7 APIs that Nominatim publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 7 JSON Schema definitions.

Tagged areas include Reverse. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, a JSON-LD context, rate-limit docs, and 7 JSON Schemas.

This API exposes 1 operation across 1 path, and defines 3 schemas. It is described by OpenAPI 3.0.3, at version 4.5.0.

Requests are made against 2 base URLs: https://nominatim.openstreetmap.org, https://{host}.

1 operations 1 paths 3 schemas 1 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
4.5.0
Base URL
https://nominatim.openstreetmap.org
Terms of Service
Resource Areas
1

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 GET. Each is listed below with its method, path, parameters, and response codes.

Reverse 1

Reverse geocoding — find the closest OSM object to a coordinate.

GET
/reverse
Reverse Geocode A Coordinate
reverse 17 params → 200400429

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are Place (20 properties), Address (14 properties), Error (1 property). Each schema is shown below with its type and property counts.

Address
object
Structured address breakdown for a place.
14 properties
Error
object
1 property
Place
object
A single Nominatim place result.
20 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

nominatim-reverse-api-openapi.yml Raw ↑

Other APIs Nominatim publishes across the network.

Nominatim Deletable API
Nominatim Details API
Nominatim Lookup API
Nominatim Polygons API
Nominatim Search API
Nominatim Status API