keyword

online books free

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

$ curl "https://app.seodata.dev/v1/keyword?q=online+books+free&country=us" +--------------+------------------+ | volume | 5,400 | | cpc | $5.9 | | competition | 0.4 | | country | US | | updated | 2026-05-24 | +--------------+------------------+

# 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
free reading books	33,100	$3.88	20/20
read books for free	33,100	$5.11	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
online books	22,200	$3.41	20/20
books to read online	9,900	$3.13	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=online+books+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