keyword

california bullet train

Monthly search volume and cost-per-click data for "california bullet train" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=california+bullet+train&country=us" +--------------+------------------+ | volume | 3,600 | | cpc | $6.04 | | competition | 0.01 | | country | US | | updated | 2026-06-27 | +--------------+------------------+

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
california high speed rail	27,100	$8.19	15/20
california high-speed rail	27,100	$8.19	15/20
high-speed rail california	5,400	$1.79	17/20
california high-speed rail progress	3,600	$6.8	16/20
fast train california	3,600	$4	13/20
ca high speed rail	2,900	$10.86	17/20
ca high-speed rail	2,900	$10.86	14/20
california high-speed rail project	1,300	$6.05	16/20
california hsr	1,000	$11.25	19/20
high speed bullet train california	50	$0	14/20

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=california+bullet+train&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