seodata.dev

keyword

oldest coin for sale

Monthly search volume and cost-per-click data for "oldest coin for sale" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=oldest+coin+for+sale&country=us" +--------------+------------------+ | volume | 140 | | cpc | $0.31 | | competition | 0.28 | | country | US | | updated | 2026-06-07 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
ancient coins 3,600 $0.97 19/20
antique coins for sale 1,900 $1.14 17/20
ancient coins for sale 1,300 $1.12 20/20
ancient coin for sale 1,300 $1.12 16/20
antique coins 1,300 $1.43 15/20
buy ancient coins 320 $1.72 13/20
oldest coin in the world for sale 90 $0.11 13/20
oldest coins in the world for sale 90 $0.11 12/20
harlan j berk us coins 30 $0 13/20
harlan berk current catalog 20 $0 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=oldest+coin+for+sale&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