keyword

billion books

Monthly search volume and cost-per-click data for "billion books" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=billion+books&country=us" +--------------+------------------+ | volume | 1,900 | | cpc | $0.05 | | competition | 0.04 | | country | US | | updated | 2026-06-22 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
bam books	550,000	$0.07	10/20
bam bookstore	550,000	$0.07	10/20
books a million	550,000	$0.06	9/20
books-a-million	550,000	$0.07	9/20
books of a million	550,000	$0.16	8/20
book a million	9,900	$0.06	8/20
books a million hours	6,600	$0.94	8/20
books a million locations	6,600	$0.17	8/20
books-a-million locations	3,600	$0.91	10/20
bam books a million	2,400	$0.06	8/20

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://api.seodata.dev/v1/keyword?q=billion+books&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt