seodata.dev

keyword

cas registry

Monthly search volume and cost-per-click data for "cas registry" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=cas+registry&country=us" +--------------+------------------+ | volume | 480 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-12 | +--------------+------------------+
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
cas number 4,400 $7.28 13/20
cas numbers 4,400 $17.55 12/20
cas registry number search 1,900 $0.43 18/20
cas number finder 1,900 $4.26 15/20
cas number search 1,900 $0.43 10/20
chemical abstracts service cas registry 320 $0 11/20
cas chemical 260 $0.88 10/20
cas chemicals 260 $0.88 10/20
chemical cas 70 $0 10/20
chemical abstracts service registry number 40 $0 10/20

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=cas+registry&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