keyword

metro rail transit

Monthly search volume and cost-per-click data for "metro rail transit" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=metro+rail+transit&country=us" +--------------+------------------+ | volume | 18,100 | | cpc | $0.6 | | competition | 0 | | country | US | | updated | 2026-06-28 | +--------------+------------------+

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
metrorail	12,100	$1.34	15/20
metro hours	12,100	$0.34	13/20
metro rail	12,100	$0.98	13/20
metro lines	9,900	$1.8	14/20
metro line	9,900	$1.8	13/20
metro train	8,100	$0.44	20/20
metro trains	8,100	$0.44	18/20
metro transportation	2,900	$3.32	13/20
metro rail information	140	$4.34	14/20
metro rail service	50	$0	16/20

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=metro+rail+transit&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