keyword

free pdf download books sites

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

$ curl "https://api.seodata.dev/v1/keyword?q=free+pdf+download+books+sites&country=us" +--------------+------------------+ | volume | 260 | | cpc | $4.44 | | competition | 0.15 | | country | US | | updated | 2026-08-13 | +--------------+------------------+

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
pdf books to download for free	6,600	$5.79	18/20
pdf books to download	3,600	$5.85	20/20
pdf downloads for books	3,600	$5.85	15/20
online book pdf download free	320	$5.9	17/20
online free books pdf download	320	$5.9	15/20
online free pdf books download	320	$5.9	15/20
free pdf book downloading sites	260	$4.44	17/20
sites for downloading pdf books free	260	$4.44	16/20
books pdf download website	110	$5.83	15/20
find books in pdf	110	$3.8	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://api.seodata.dev/v1/keyword?q=free+pdf+download+books+sites&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