keyword

rail bus

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

$ curl "https://app.seodata.dev/v1/keyword?q=rail+bus&country=us" +--------------+------------------+ | volume | 2,400 | | cpc | $2.08 | | competition | 0.52 | | country | US | | updated | 2026-06-08 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
metropolitan transit authority	368,000	$0.59	12/20
transit	74,000	$1.02	12/20
mta train	14,800	$0.25	11/20
mta home	8,100	$0.01	13/20
metro website	8,100	$1.19	12/20
mta site	2,900	$0	12/20
transport train	2,400	$6.49	15/20
mta service	1,900	$0.01	16/20
bus train	1,000	$1.07	12/20
rail buses	880	$7.43	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/keyword?q=rail+bus&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