keyword

top 5 best seller books

Monthly search volume and cost-per-click data for "top 5 best seller books" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=top+5+best+seller+books&country=us" +--------------+------------------+ | volume | 30 | | cpc | $0 | | competition | 0.85 | | country | US | | updated | 2026-05-29 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
best-selling book	27,100	$0.54	13/20
best-selling books	27,100	$0.62	13/20
best selling book	22,200	$0.36	13/20
best selling books of all times	12,100	$0.78	14/20
best selling books of all time	12,100	$0.46	13/20
list of best seller books	2,400	$0.4	14/20
best seller novel	590	$0.3	15/20
most seller book	110	$2.66	14/20
top 10 seller books	110	$0.71	14/20
most sold books all time	20	$0	15/20

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=top+5+best+seller+books&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