Washington business verification API pricing: free and cheapest plans compared

Name: Washington business verification API plans
Creator: Datacircle
License: https://creativecommons.org/licenses/by/4.0/

Business verification APIs for Washington side by side: what 1,000 companies cost and how fresh the data is. We list 1 Washington business verification API plan, and it is free.

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Checked 2026-11-08. Free to reuse under CC BY 4.0: credit Datacircle.

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API	Score						Price			Not found	Entities checked					Time per registry lookup						The registry lookup call		Aggregators	Charges	In their words	Data			Plan	Rate limit	Speed		The call			About the plan		Sources
API plan	Overall score	Price score	Accuracy score	Cost to get started score	Bundle score	Performance score	$ per 1,000 companies	Per	Billing	$ per 1,000 calls that find nothing	Called	Registered, found	Made up, said none	Wrong	No answer	Median	10th percentile	90th percentile	Fastest	Slowest	Baseline	Call	Charged per lookup	Aggregators	Also pays for	Their pitch	Countries	Keep data	Use data	Pay	Batch	Answer	Median	You send	Method	Path	Plan	Who can get it	Read from
Business verification in Washington · 1 plan
Open Data DC, free	87.1	100	93	100	0	N/A	$0.00	call	free	$0.00	10 of 10	6 of 7

We add each plan's price, accuracy, cost to get started, bundle and performance scores at their weights and scale the total to 100. Accuracy and performance come from our benchmark, so until we benchmark the provider they are N/A, and so is the plan's overall score. A plan whose accuracy score is 0 has an overall score of 0, whatever its other scores. Click or tap any score to see how we scored it. Move a weight to rank the plans by the new scores.

Price40

Price › $ per 1,000 companies
Not found › $ per 1,000 calls that find nothing

Accuracy40

Entities checked

Our benchmark of the provider's call. N/A on a call we haven't benchmarked. Each API's sheet shows what we measured on each benchmarked plan, in the columns after its price.

Cost to get started10

About the plan › Who can get it
Price › Billing
Plan › Pay
Price › $ per 1,000 companies

On a pay as you go plan, the price of one result. On a tier that starts after a set number of monthly calls, the cost of those first calls.

Bundle10

Charges › Also pays for

Performance10

Time per registry lookup › Median

Our benchmark of the provider's call. N/A on a call we haven't benchmarked. Each API's sheet shows what we measured on each benchmarked plan, in the columns after its price.