keyword

decline code 12

Monthly search volume and cost-per-click data for "decline code 12" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=decline+code+12&country=us" +--------------+------------------+ | volume | 70 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-20 | +--------------+------------------+

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
sec violation credit card	1,000	$0	11/20
list of debit card declined codes	260	$0	9/20
debit code 12	90	$0	12/20
code 12 walmart	50	$0	11/20
declined 12	40	$0	15/20
decline 12	40	$0	12/20
host code 12	40	$0	11/20
12 invalid transaction	40	$0	10/20
what does invalid transaction mean on a card machine	30	$0	11/20
result code 12	20	$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=decline+code+12&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