Chicago business verification API pricing: free and cheapest plans compared

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

Business verification APIs for Chicago side by side: what 1,000 companies cost and how fresh the data is. We list 2 Chicago business verification API plans, 2 of them free. data.cityofchicago.org's free plan has no limit on companies.

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Checked 2026-11-03

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API

Score

Entities checked

Time per registry lookup

The registry lookup call

Plan

About the plan

API plan

Overall score

Price score

Accuracy score

Cost to get started score

Bundle score

Performance score

Called

Registered, found

Made up, said none

Wrong

No answer

Median

10th percentile

90th percentile

Fastest

Slowest

Baseline

Call

Charged per lookup

Enough for

Plan

Who can get it

Business verification in Chicago · 1 plan

data.cityofchicago.org, free, No application token

78.6

100

N/A

10 of 10

3 of 7

3 of 3

4 of 10

0 of 10

0.16 s

0.07 s

data.cityofchicago.org, free, Application token

76.2

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, the same on every plan here, so off this sheet
Not found › $ per 1,000, the same on every plan here, so off this sheet

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, the same on every plan here, so off this sheet
Plan › Pay, the same on every plan here, so off this sheet
Price › $ per 1,000 companies, the same on every plan here, so off this sheet

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

Also pays for, what else a plan's price gets you, as the pricing pages list it. This sheet shows the column once we've read it for every plan.

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.