seodata.dev

keyword

world's biggest city

Monthly search volume and cost-per-click data for "world's biggest city" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=world's+biggest+city&country=us" +--------------+------------------+ | volume | 49,500 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-01 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
largest city in the world 90,500 $0 20/20
the biggest city in the world 90,500 $0 20/20
largest cities in the world 49,500 $0 20/20
the largest city in the world 49,500 $0 20/20
big cities in the world 40,500 $0 20/20
big city in the world 40,500 $0 20/20
most populated city in the world 22,200 $0 20/20
the most populated city in the world 22,200 $0 20/20
the most populous city in the world 22,200 $0 20/20
what is the biggest city in the world 18,100 $0 20/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=world's+biggest+city&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt