seodata.dev

keyword

most expensive bills

Monthly search volume and cost-per-click data for "most expensive bills" in US.

$ curl "https://app.seodata.dev/v1/search-volume?q=most-expensive-bills" +--------------+------------------+ | volume | 140 | | cpc | $0 | | competition | 0.01 | | country | US | | updated | 2026-03-30 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
rare dollar bills 4,400 $0.08 11/20
most expensive bill 140 $0 14/20
rarest dollar bill in the world 110 $0.02 9/20
expensive bills 90 $0 9/20
what is the rarest bill 90 $0 9/20
most valuable bills 50 $0 10/20
most valuable bill 50 $0 9/20
most valuable us paper money 40 $0 9/20
most expensive dollar bill in the world 30 $0 10/20
world's most expensive dollar bill 30 $0 9/20

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/search-volume?q=most-expensive-bills" 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