keyword

books online free

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

$ curl "https://app.seodata.dev/v1/keyword?q=books+online+free&country=us" +--------------+------------------+ | volume | 4,400 | | cpc | $3.76 | | competition | 0.17 | | country | US | | updated | 2026-05-21 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
free books online	40,500	$3.83	20/20
free books	33,100	$3.88	20/20
read books for free	33,100	$3.88	20/20
read books online for free	33,100	$3.88	20/20
read books online free	33,100	$3.88	20/20
read free online books	33,100	$3.88	20/20
read online books for free	33,100	$3.88	20/20
books free to read	9,900	$2.5	20/20
free books to read	9,900	$3.76	20/20
free online books	9,900	$4.52	20/20

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=books+online+free&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