Cities

Look up metadata for cities worldwide including population, IANA timezone, and geographic coordinates. Covers ~22,000 cities with a population above 15,000 from the GeoNames dataset.

Get API Key

Overview

Use Cases

Display city info in a travel or relocation app
Resolve a city name to coordinates for further lookups
Determine the timezone of a user-selected city
Power city-autocomplete search with population context

Features

~22,000 cities worldwide (population > 15,000)

Population, timezone, country, and coordinates in one response

Case-insensitive city name lookup

When multiple cities share a name, the most populous one is returned

API Endpoints

Get City Info

Returns metadata for a city by name. Lookup is case-insensitive.

GET

https://api.requiems.xyz/v1/places/cities/{city}

Parameters

Name	Type	Required	Description
city	`string`	Required	City name to look up (e.g. london, tokyo, new york city)

Try it out

Live Demo

Request

city * (string)

City name to look up (e.g. london, tokyo, new york city)

Response Fields

Field	Type	Description
name	`string`	Official city name as listed in the GeoNames dataset
country	`string`	ISO 3166-1 alpha-2 country code (uppercase)
population	`integer`	City population from the GeoNames dataset
timezone	`string`	IANA timezone identifier for the city (e.g. "America/New_York")
lat	`number`	Latitude of the city centre
lon	`number`	Longitude of the city centre

Code Examples

curl "https://api.requiems.xyz/v1/places/cities/london" \
  -H "requiems-api-key: YOUR_API_KEY"

import requests

url = "https://api.requiems.xyz/v1/places/cities/london"
headers = {"requiems-api-key": "YOUR_API_KEY"}

response = requests.get(url, headers=headers)
data = response.json()
print(data["data"]["timezone"])  # Europe/London

const response = await fetch(
  'https://api.requiems.xyz/v1/places/cities/london',
  { headers: { 'requiems-api-key': 'YOUR_API_KEY' } }
);
const data = await response.json();
console.log(data.data.timezone);  // Europe/London

require 'net/http'
require 'json'

uri = URI('https://api.requiems.xyz/v1/places/cities/london')
request = Net::HTTP::Get.new(uri)
request['requiems-api-key'] = 'YOUR_API_KEY'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

data = JSON.parse(response.body)
puts data['data']['timezone']

Error Responses

not_found

No city with that name was found in the dataset.

internal_error

Unexpected server error.

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