API reference

Reverse geocoding

Look up the nearest addresses from coordinates. If no house is in range, results may fall back to a street, then a nearby locality. Results are ordered nearest first.

1 credit per successful call · Authentication and account rate limit apply.

POST/v1/reverse

Request body

application/json · Up to 64 KiB. Unknown fields are rejected. Send your key in x-api-key.

lat number

Latitude in degrees, from -90 to 90. Omission uses 0.

lon number

Longitude in degrees, from -180 to 180. Omission uses 0.

radiusM integer

Search radius in metres. Omitted or 0 uses 500.

Default: 500. Range: 0–2000.

size integer

Maximum results. Omitted or 0 uses 1.

Default: 1. Range: 0–10.

Response 200

Default scalar values and empty lists may be omitted. Treat absent lists as empty and absent scalars as their protobuf defaults.

results ReverseResult[]

Nearest first. Empty or omitted when nothing is in range.

Nested fields
address FullAddress
Nested fields
addressDetails AddressDetails
Nested fields
aerialway string
aeroway string
allotments string
amenity string
borough string
boundary string
bridge string
city string
cityBlock string
cityDistrict string
club string
commercial string
continent string
country string
countryCode string
county string
craft string
croft string
district string
emergency string
farm string
farmyard string
hamlet string
highway string
historic string
houseName string
houseNumber string
industrial string
isolatedDwelling string
landuse string
leisure string
manMade string
military string
mountainPass string
municipality string
natural string
neighbourhood string
office string
place string
postcode string
province string
quarter string
railway string
region string
regionCodes ISO3166_2[]

ISO 3166-2 codes for the address.

Nested fields
adminLevel integer

Administrative level.

Range: 0–4294967295.

code string

ISO 3166-2 region code.

regions Region[]

Administrative regions for the address.

Nested fields
adminCode string

ISO 3166-2 administrative region code.

adminLevel integer

Administrative level.

Range: 0–4294967295.

countryCode string

ISO 3166-1 alpha-2 country code.

countryName string

Country name.

enName string

English region name.

localName string

Local region name.

parentAdminCode string

Parent administrative region code, when available.

residential string
retail string
road string
shop string
state string
stateDistrict string
subdivision string
suburb string
tourism string
town string
tunnel string
village string
waterway string
displayName string

Human-readable address or place name.

geoCoordinates GeoCoordinates
Nested fields
boundingBox BoundingBox
Nested fields
maxLat number

Northern latitude in degrees.

maxLon number

Eastern longitude in degrees.

minLat number

Southern latitude in degrees.

minLon number

Western longitude in degrees.

lat number

Latitude in degrees, from -90 to 90. Omission uses the protobuf default of 0.

lon number

Longitude in degrees, from -180 to 180. Omission uses the protobuf default of 0.

goodMatch boolean

True for a good match. False or omitted for a partial match, such as a street without the requested house number.

distanceM number

Distance from the requested point, in metres.

layer string

address: a house in range; street: no house in range; locality: neither, so the nearest locality within about 50 km.

Errors

HTTPCodeMeaning
400invalid_argumentInvalid JSON, unknown fields, unsupported Connect protocol version, oversized body, invalid query or unverifiable client address.
401unauthenticatedThe API key is missing, invalid or revoked.
404not_foundThe suggestion ID is unknown or belongs to an older index. Request autocomplete suggestions again.
429resource_exhaustedThe per-second limit was reached, a billable operation has no remaining credits, or the client IP is temporarily locked after failed API authentication. Autocomplete and regions remain available with zero credits. IP lockouts include Retry-After and also block valid keys from that IP until expiry.
503unavailableThe API is starting or the geocoder is temporarily unavailable.
Error handling and retries →