keyword

open source vpn free

Monthly search volume and cost-per-click data for "open source vpn free" in US.

$ curl "https://app.seodata.dev/v1/search-volume?q=open-source-vpn-free" +--------------+------------------+ | volume | 170 | | cpc | $5.06 | | competition | 0.22 | | country | US | | updated | 2026-03-29 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
vpn open source	1,300	$4.13	20/20
vpn free open source	170	$5.06	15/20
free open source vpn	170	$3	14/20
vpn open source free	170	$3	14/20
open source vpn servers	170	$9.88	13/20
open source vpn app	140	$0	13/20
open source vpn clients	70	$0	13/20
vpn service open source	30	$9.46	14/20
open source free vpn	30	$4.36	13/20
open-source vpn for windows	20	$7.04	13/20

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/search-volume?q=open-source-vpn-free" 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