World Cities Database API

Access detailed information about 1,600+ major world cities across 193 countries. Features 3 specialized endpoints: search-by-name for text-based city searches with partial matching, search-by-coordinates for radius-based geographic searches using Haversine formula, and search-by-country for country-specific city listings with population filters. Includes city names (including alternate names), geographic coordinates, population data, administrative divisions, timezones, and more. Data sourced from GeoNames.org, World Bank, and UNESCO. Perfect for location-based applications, travel apps, demographic analysis, and geographic data integration.