seodata.dev

keyword

which is the best seller book in the world

Monthly search volume and cost-per-click data for "which is the best seller book in the world" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=which+is+the+best+seller+book+in+the+world&country=us" +--------------+------------------+ | volume | 10 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-03-30 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
the best seller book of all time 9,900 $2 11/20
best seller book of all time 590 $0 12/20
best seller novel 590 $0.3 12/20
most seller book 110 $2.66 11/20
best seller in the world 30 $0 12/20
bestselling novels ever 30 $0 11/20
top bestselling novels 20 $0.52 13/20
bestseller books in english 20 $0 12/20
most best selling book 20 $0 12/20
most best selling books 20 $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=which+is+the+best+seller+book+in+the+world&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