seodata.dev

keyword

oldest halloween costume

Monthly search volume and cost-per-click data for "oldest halloween costume" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=oldest+halloween+costume&country=us" +--------------+------------------+ | volume | 1,600 | | cpc | $0.13 | | competition | 0.21 | | country | US | | updated | 2026-06-18 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
oldest halloween costumes 1,600 $0.13 13/20
halloween costume origins 480 $0.08 13/20
history of halloween costumes 480 $0.08 13/20
halloween costumes history 480 $2.42 12/20
halloween history costumes 480 $0.08 12/20
halloween history of costumes 480 $0.08 12/20
history behind halloween costumes 480 $2.42 12/20
history of costumes for halloween 480 $0.08 12/20
history of costumes on halloween 480 $2.42 12/20
what was the first halloween costume 40 $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://app.seodata.dev/v1/keyword?q=oldest+halloween+costume&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