keyword

cng vehicles

Monthly search volume and cost-per-click data for "cng vehicles" in US.

$ curl "https://app.seodata.dev/v1/search-volume?q=cng-vehicles" +--------------+------------------+ | volume | 4,400 | | cpc | $0.84 | | competition | 0.13 | | country | US | | updated | 2026-03-30 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
natural gas vehicle	4,400	$0.84	18/20
natural gas vehicles	4,400	$1.64	18/20
cng gas vehicles	4,400	$0.84	17/20
cng car	2,400	$0.86	20/20
cng cars	2,400	$0.86	20/20
natural gas cars	2,400	$0.14	18/20
methane car	2,400	$0.74	16/20
natural gas car	1,900	$0.16	20/20
cng gas cars	70	$2.76	16/20
what vehicles use cng	30	$0	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://app.seodata.dev/v1/search-volume?q=cng-vehicles" 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