Live Test API
Try out the Cities Lookup with a live request and see the response in real-time.
API Request
API Response
1234567891011121314151617181920212223{ "status": "ok", "error": null, "data": { "search": "San Francisco", "foundCities": [ { "name": "San Francisco de Laishí", "altName": "", "country": "AR", "featureCode": "PPLA2", "population": 4384, "loc": { "type": "Point", "coordinates": [ -58.63039, -26.24262 ] } } ] } }
Multiple Access Methods
REST API with multiple response formats, GraphQL, and MCP for AI agents
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JavaScript Object Notation
XML
Extensible Markup Language
YAML
Human-readable data format
CSV
Comma-separated values
GraphQL
Query language for APIs
MCP
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Frequently Asked Questions
Get answers to common questions about the Cities Lookup API
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. The API returns structured data in JSON, XML, or YAML format, making it easy to integrate into any application or workflow.
How fast is the Cities Lookup API?
The Cities Lookup API has an average response time of 1552ms, with a median (p50) of 1412ms and 99th percentile of 2483ms. Our infrastructure maintains 99.9% uptime with servers distributed globally for low latency.
How much does the Cities Lookup API cost?
Each call to the Cities Lookup API uses 1 credit. The free tier includes 100 credits per month. Paid plans start at $29.99/month with higher limits, and enterprise plans offer custom pricing with priority support.
How do I authenticate Cities Lookup API requests?
Include your API key in the request header as X-API-Key: your_key_here. All requests are made over HTTPS for security. You can get your API key by signing up for a free account.
What HTTP methods does Cities Lookup support?
The Cities Lookup API supports GET requests. Simply pass your parameters as query strings in the URL. Check our documentation for detailed parameter specifications.
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