Cities API – Unified access to 13M+ geographic places

Summary: Cities API provides a single interface to access over 13 million geographic features including cities, mountains, lakes, and airports across 252 countries and 418 timezones. It supports complex queries like distance calculations and combined searches with under 100ms response times, eliminating the need for multiple specialized APIs.

What it does

Cities API unifies 84 endpoints into one system, allowing searches, filters, and distance computations across diverse place types such as cities, mountains, lakes, airports, and parks. It supports queries like finding nearby airports to mountains or sunrise times at lakes using a consistent interface.

Who it's for

It is designed for developers building travel, logistics, mapping, or other applications requiring flexible geographic data across multiple place categories.

Why it matters

It solves the problem of fragmented geo data by providing a flexible, agnostic API that handles complex geographic queries without locking users into single-category endpoints.