seodata.dev

keyword

the first train

Monthly search volume and cost-per-click data for "the first train" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=the+first+train&country=us" +--------------+------------------+ | volume | 390 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-07 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
when were trains invented 4,400 $0 18/20
when was the first train invented 3,600 $0 20/20
when was the first train built 3,600 $0 15/20
when was the train invented 3,600 $0 14/20
first railway 2,900 $0 20/20
evolution of railways 1,900 $2.44 14/20
first train 1,600 $0 20/20
history of the train 1,600 $0.34 14/20
first ever train 260 $0 15/20
where was the first train 40 $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/keyword?q=the+first+train&country=us" 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