seodata.dev

keyword

metro system dc

Monthly search volume and cost-per-click data for "metro system dc" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=metro+system+dc&country=us" +--------------+------------------+ | volume | 2,400 | | cpc | $0.13 | | 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
metro lines in washington dc 18,100 $0.05 17/20
subway in dc 14,800 $0.11 20/20
subway in washington dc 14,800 $0.12 18/20
metro subway washington dc 9,900 $0.25 20/20
washington dc subway system 9,900 $0.22 20/20
washington dc subway 9,900 $0.22 16/20
subway washington dc 8,100 $0.35 18/20
dc subway 8,100 $0.35 16/20
metro system washington dc 6,600 $0.03 20/20
dc metro system 2,400 $0.13 19/20

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+system+dc&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