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keyword

what is the rarest bill

Monthly search volume and cost-per-click data for "what is the rarest bill" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=what+is+the+rarest+bill&country=us" +--------------+------------------+ | volume | 90 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-19 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
rare dollar bills 4,400 $0.08 13/20
most expensive dollar bill 390 $0.02 12/20
what is the rarest dollar bill 390 $0.02 12/20
most expensive bill 140 $0 10/20
what is the most rare dollar bill 50 $0 11/20
what is the rarest dollar bill in the world 50 $0 11/20
most valuable us paper money 40 $0 11/20
most valuable dollar bill in the world 30 $0 13/20
most expensive dollar bill in the world 30 $0 12/20
world's most expensive dollar bill 30 $0 11/20

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+the+rarest+bill&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