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what is forbes 400

Monthly search volume and cost-per-click data for "what is forbes 400" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+forbes+400&country=us" +--------------+------------------+ | volume | 50 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-25 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
forbes richest people 8,100 $3.02 11/20
forbes richest man 8,100 $3.02 10/20
forbes richest 4,400 $0 10/20
forbes 400 3,600 $0 20/20
forbes richest list 1,600 $0 11/20
forbes 400 list 720 $0 11/20
list of forbes 400 720 $0 10/20
forbes richest 400 390 $0 11/20
what is the forbes 400 50 $0 13/20
the forbes 400 40 $0 12/20

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=what+is+forbes+400&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