Cities Lookup API GET

Documentation Start for free →

Cities Lookup is a simple tool for looking up city data. It returns the city name, population, and more.

Try it — live request, no key required

Request

GETapi.apiverve.com/v1/citieslookup

Verification

Format

No key required to try it. Get a key to use it in your app.

200 OK

{
  "status": "ok",
  "error": null,
  "data": {
    // Cities Lookup response payload
  }
}

About the Cities Lookup API

Cities Lookup works by retrieving city data from various reliable sources and providing it in a structured format. The city database is updated regularly to ensure accurate and up-to-date information.

What people use it for

Business Intelligence: Use the Cities Lookup API to get city data for business intelligence purposes. Analyze population trends, demographics, and economic indicators for different cities
Market Research: Conduct market research by using the Cities Lookup API to get city data. Use the data to identify target markets, consumer preferences, and competitive landscapes
Location-based Services: Develop location-based services by using the Cities Lookup API to get city data. Use the data to provide personalized recommendations, local information, and geolocation services
Urban Planning: Plan urban development projects by using the Cities Lookup API to get city data. Use the data to assess infrastructure needs, land use patterns, and environmental impacts

Ways to call it

One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.

JSON: Default REST response
XML: Markup format
YAML: Human-readable
CSV: Tabular export
GraphQL: Query language
MCP: For AI agents

View all integrations →

Other ways to use Cities Lookup

Same data, same APIVerve account, same credit balance — one key works on all of them.

Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.on VerveKit Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.on VerveSheets Ground an agent on itA cited, machine-checkable fact your model can't produce on its own.on VerveContext

Questions.

Common questions about the Cities Lookup API.

Read the docs →

What does the Cities Lookup API do?

Cities Lookup is a simple tool for looking up city data. It returns the city name, population, and more.

How do I authenticate Cities Lookup API requests?

Pass your API key in the x-api-key header over HTTPS. One key works across all 300+ APIVerve APIs — there are no per-endpoint credentials.

How much does the Cities Lookup API cost?

Each call spends 2 credits from your shared pool. The free tier includes 200 credits every month, and paid plans add more headroom.

How fast is the Cities Lookup API?

Response time depends on the endpoint — the p50 through p99 latency for this API is published on this page. Requests are served over HTTPS through a global edge network.

What response formats does the Cities Lookup API support?

JSON by default, plus XML and YAML via the format parameter. GraphQL and an MCP interface for AI agents are available across the catalog.

What HTTP method does the Cities Lookup API use?

GET over HTTPS, following standard REST conventions with a consistent { status, error, data } response envelope.

Request parameters — GET /v1/citieslookup

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.

Required

Parameter	Type	Example	Description
`city`Required	string	`San Francisco`	The city name for which you want to get the data (e.g., New York)

Optional

Parameter	Type	Example	Description
`limit`OptionalPremium	integer	`5`	Limit number of cities that match your search criteria default 1 · range 1-20

Example request

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2

curl "https://api.apiverve.com/v1/citieslookup?city=San%20Francisco&limit=5" \
  -H "x-api-key: YOUR_API_KEY"

Authentication

Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.

Header	When	Value
`x-api-key`Required	Every request	Your API key. Header names are case-insensitive, so `X-API-Key` is the same header.
`Authorization`Alternate	Instead of the above	`Bearer <key>` — for clients that only expose bearer auth. Resolves to the same account and the same billing.

401 is the only auth verdict

A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.

Response — GET /v1/citieslookup

Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.

Sample response

{
  "status": "ok",
  "error": null,
  "data": {
    "search": "San Francisco",
    "foundCities": [
      {
        "name": "San Francisco",
        "altName": "",
        "country": "US",
        "countryName": "United States",
        "featureCode": "PPLA2",
        "population": 874961,
        "populationCategory": "major",
        "loc": {
          "type": "Point",
          "coordinates": [
            -122.4194,
            37.7749
          ]
        }
      }
    ]
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Field	Type	Example	Description
`search`	string	`"San Francisco"`	The search query used to find cities
`foundCities`	array[1]		Array of city objects matching the search criteria
`name`	string	`"San Francisco"`	Official city name
`altName`	string	`""`	Alternative city name or alias if available
`country`	string	`"US"`	Two-letter ISO country code (e.g., US)
`countryName`	string	`"United States"`	Full country name (e.g., United States)
`featureCode`	string	`"PPLA2"`	Geonames feature code for city classification type
`population`	number	`874961`	City population count derived from latest census
`populationCategory`	string	`"major"`	City size classification based on population ranges
`loc`	object	`{...}`
`type`	string	`"Point"`	GeoJSON geometry type (always Point)
`coordinates`Premium	array	`[-122.4194, ...]`	GeoJSON coordinates as [longitude, latitude] pair

Response headers

Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.

Header	What it carries
`x-api-remaining-credits`	Credits left in the current cycle
`x-api-credits-used`	Credits spent in the current cycle
`x-api-max-credits`	The allowance for the cycle
`x-api-version`	Version of the endpoint that answered

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.

Status	Meaning	What to do
`400`	Input was rejected	Read `error`; it names the parameter that has to change.
`401`	Key missing or invalid	Check the header name and the key value.
`403`	Key valid, but not permitted here	A key restriction or an IP allow-list — never a bad key.
`429`	Rate limited, or out of credits	Read `error` to tell them apart, then back off or top up.

What a call costs — 2 credits per call

Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.

Plan	Per month	Credits	Cities Lookup calls	Per 1,000 calls
Free	Free	200	100	Free
Starter	$29.99	200,000	100,000	$0.30
Pro	$99.99	1,000,000	500,000	$0.20
Mega	$299.99	4,000,000	2,000,000	$0.15

Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.

Compare all pricing tiers →

Call it from cURL — GET /v1/citieslookup

No SDK to install — this is a plain HTTPS call to /v1/citieslookup with your key in the x-api-key header. Swap in a real key and it runs as-is.

cURL

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2

curl "https://api.apiverve.com/v1/citieslookup" \
  -H "x-api-key: YOUR_API_KEY"

Resources

GitHubapiverve/citieslookup-apiSource, issues and the examples this page is built from.ReferenceCities Lookup API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/citieslookupnpm apiverve-citieslookupPyPI APIVerve.API.CitiesLookupNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Node.js — GET /v1/citieslookup

Install the Node.js SDK, then call the Cities Lookup API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — npm

npm install @apiverve/citieslookup

Node.js

const res = await fetch("https://api.apiverve.com/v1/citieslookup", {
  headers: { "x-api-key": "YOUR_API_KEY" },
});
const { data } = await res.json();
console.log(data);

Resources

npm@apiverve/citieslookupThe published Node.js client, versioned and signed.GitHubapiverve/citieslookup-apiSource, issues and the examples this page is built from.ReferenceCities Lookup API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

apiverve-citieslookupPyPI APIVerve.API.CitiesLookupNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Python — GET /v1/citieslookup

Install the Python SDK, then call the Cities Lookup API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — PyPI

pip install apiverve-citieslookup

Python

import requests

res = requests.get(
    "https://api.apiverve.com/v1/citieslookup",
    headers={"x-api-key": "YOUR_API_KEY"},
)
print(res.json()["data"])

Resources

PyPIapiverve-citieslookupThe published Python client, versioned and signed.GitHubapiverve/citieslookup-apiSource, issues and the examples this page is built from.ReferenceCities Lookup API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/citieslookupnpm APIVerve.API.CitiesLookupNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from C# / .NET — GET /v1/citieslookup

Install the C# / .NET SDK, then call the Cities Lookup API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — NuGet

dotnet add package APIVerve.API.CitiesLookup

C# / .NET

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");

var json = await client.GetStringAsync("https://api.apiverve.com/v1/citieslookup");
Console.WriteLine(json);

Resources

NuGetAPIVerve.API.CitiesLookupThe published C# / .NET client, versioned and signed.GitHubapiverve/citieslookup-apiSource, issues and the examples this page is built from.ReferenceCities Lookup API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/citieslookupnpm apiverve-citieslookupPyPI

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Go — GET /v1/citieslookup

No SDK to install — this is a plain HTTPS call to /v1/citieslookup with your key in the x-api-key header. Swap in a real key and it runs as-is.

req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/citieslookup", nil)
req.Header.Set("x-api-key", "YOUR_API_KEY")

res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Resources

Also published for

@apiverve/citieslookupnpm apiverve-citieslookupPyPI APIVerve.API.CitiesLookupNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from PHP — GET /v1/citieslookup

No SDK to install — this is a plain HTTPS call to /v1/citieslookup with your key in the x-api-key header. Swap in a real key and it runs as-is.

PHP

$ch = curl_init("https://api.apiverve.com/v1/citieslookup");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-api-key: YOUR_API_KEY"]);

$response = curl_exec($ch);
echo $response;

Resources

Also published for

@apiverve/citieslookupnpm apiverve-citieslookupPyPI APIVerve.API.CitiesLookupNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Ruby — GET /v1/citieslookup

No SDK to install — this is a plain HTTPS call to /v1/citieslookup with your key in the x-api-key header. Swap in a real key and it runs as-is.

Ruby

require "net/http"

uri = URI("https://api.apiverve.com/v1/citieslookup")
req = Net::HTTP::Get.new(uri)
req["x-api-key"] = "YOUR_API_KEY"

res = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |h| h.request(req) }
puts res.body

Resources

Also published for

@apiverve/citieslookupnpm apiverve-citieslookupPyPI APIVerve.API.CitiesLookupNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

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Cities Lookup API GET

Try it — live request, no key required

About the Cities Lookup API

What people use it for

Ways to call it

Other ways to use Cities Lookup

Questions.

Request parameters — GET /v1/citieslookup

Required

Optional

Authentication

Response — GET /v1/citieslookup

Response fields

Response headers

Errors

What a call costs — 2 credits per call

Call it from cURL — GET /v1/citieslookup

Resources

Also published for

Call it from Node.js — GET /v1/citieslookup

Resources

Also published for

Call it from Python — GET /v1/citieslookup

Resources

Also published for

Call it from C# / .NET — GET /v1/citieslookup

Resources

Also published for

Call it from Go — GET /v1/citieslookup

Resources

Also published for

Call it from PHP — GET /v1/citieslookup

Resources

Also published for

Call it from Ruby — GET /v1/citieslookup

Resources

Also published for

Zero-code embed — one snippet, no backend

Changelog — Cities Lookup API

Geography

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