keyword

proton free

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

$ curl "https://api.seodata.dev/v1/keyword?q=proton+free&country=us" +--------------+------------------+ | volume | 390 | | cpc | $0.67 | | competition | 0.05 | | country | US | | updated | 2026-09-02 | +--------------+------------------+

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
protonvpn free	33,100	$2.04	14/20
protonvpn free plan	18,100	$4.99	17/20
protonvpn free version	3,600	$1.86	13/20
is protonvpn safe	3,600	$3.83	10/20
is protonvpn free	2,400	$1.53	17/20
free proton	110	$0.08	12/20
is proton free	110	$0	11/20
protonvpn for free	30	$0.74	11/20
is vpn proton free	30	$0	10/20
protonvpn is free	30	$0	10/20

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=proton+free&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