keyword

illinois tollway invoice

Monthly search volume and cost-per-click data for "illinois tollway invoice" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=illinois+tollway+invoice&country=us" +--------------+------------------+ | volume | 2,400 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-23 | +--------------+------------------+

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
illinois tollway pay	18,100	$2.3	18/20
pay tolls illinois	18,100	$2.05	15/20
illinois tollway pay by plate	12,100	$2.42	16/20
illinois tollway pay online	9,900	$2.84	18/20
illinois tollway invoices	2,400	$0	15/20
pay by plate illinois tollway	1,900	$1.84	18/20
pay illinois tolls by phone	1,900	$3.33	18/20
how to pay illinois tolls online	1,600	$2.5	19/20
pay missed tolls illinois	1,300	$1.08	19/20
illinois tollway/invoices	590	$0	16/20

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=illinois+tollway+invoice&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