ZoomInfo pricing and alternatives: cached similar people API

ZoomInfo's site llms.txt

8% complete: 1 of the 13 key fields we checkSee the 13 fields

$0.00per 1,000 peopleThe cheapest of the 11 plans we rank by price is Pubrio, $495 pack, at $1.08 per 1,000.

Plan: Free one of ZoomInfo's 14 plans

Call: GET /copilot/v1/contacts/lookalikes ZoomInfo's only call

GET /copilot/v1/contacts/lookalikesFree$0.00 per 1,000

API: Cached similar people API one of ZoomInfo's 8 APIs

About this item

Stored. You get similar people from ZoomInfo's database. ZoomInfo doesn't say how old its data is.
1 of the 13 key fields we check. About.
Nothing to pay. You get 1,000 credits, which pay for ZoomInfo's other calls. This call costs none of them for up to 3,888,000 calls a month.
One call. You send filter[referencePersonId] to GET /copilot/v1/contacts/lookalikes. You can also send filter[targetCompanyId] and page[size]. The call returns people similar to the person you send.
Who can get it: with conditions. Keep data: with conditions. Use data: with conditions.

ZoomInfo: cached similar people API alternatives

We list other providers' plans closest to this plan in price per 1,000 people. Each plan in the table gives stored data.

	This planZoomInfo, free	Anysite, free	Reverse Contact, free	Ocean.io, free
$ per 1,000	$0.00	$0.00	$0.00	$0.00
Completeness	8%	92%	100%	62%
Billing	free	free	free	free
Pay	$0	$0	$0	$0
Enough for	3,888,000 calls a month	1,000 results	100 results, once	1,500 results, once
Freshness	stored	stored	stored	stored
Who can get it	employees of the company that holds the account (a contractor only with ZoomInfo's prior permission), each with their own login and a business email address	anyone at least 18 years old or of the age of majority in their jurisdiction, who has not had a credit plan before, starting the trial takes a card	professionals acting in their professional capacity, not as consumers, one trial per customer	anyone with a company email (no Gmail or other personal address)

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-23.

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

Experience, not in the answer
Education, not in the answer
Skills, not in the answer
Headline, not in the answer
About
Location, not in the answer
Photo, not in the answer
Followers, not in the answer
Connections, not in the answer
Certifications, not in the answer
Languages, not in the answer
Recommendations, not in the answer
Open to work, not in the answer

Price
$ per 1,000	$0.00
Billing	free

Charges
Per	page of 100
Also pays for	Account Research · Contact Research · from the same budget: Enrich Companies · Enrich Contacts · Enrich Corporate Hierarchy · Enrich Intent · Enrich Technologies

Not found
$ per 1,000	$0.00

In their words
Their pitch	Contact Lookalikes can be used to retrieve a ranked list of people who are most similar to a given reference person.

Data
Freshness	stored
Keep data	3.3.1 Expiration or Termination for any Reason. Upon expiration or termination of the Agreement for any reason: (a) Licensee may continue to use Licensed Materials obtained during the Term subject to the terms of this Agreement, (b) Licensee shall immediately cease accessing or using ZoomInfo Technology, and (c) Licensee acknowledges and agrees that its access to the Services may be automatically terminated, all passwords and individual accounts removed, and all information that has been uploaded into ZoomInfo’s systems by Licensee destroyed. [...] 5.4 Personal Information. [...] Within the ZoomInfo Technology, ZoomInfo may publish a list of persons who have requested that their personal information be removed from ZoomInfo’s database. Licensee agrees to review such list on a regular basis (no less frequently than once per month) and to remove from its possession any Licensed Materials Contact records relating to such persons in its possession, unless Licensee has established an independent lawful basis to process such person’s personal information.
Use data	2.3 Authorized Uses, Restrictions. Licensee shall not access or use the Services for any purpose except the business-to-business sales, marketing, recruiting, or business development activities of Licensee. Licensee shall not access or use the Licensed Materials for the benefit of or on behalf of any person or entity except Licensee. Subject to Licensee’s compliance with all applicable laws, rules, and regulations, Licensee may use the Services to: (a) view the Licensed Materials, (b) communicate with any Licensed Materials Contact in a manner that relates to such person’s profession, business, or employment, and (c) identify prospective sales opportunities, research Licensee’s existing customers and prospects, and otherwise analyze the Licensed Materials in a manner relating to Licensee’s business-to-business sales, marketing, recruiting, and business development activities. Licensee shall not permit anyone who is not an Authorized User to access or use the Services, including any Licensed Materials or any Authorized User login credentials. Licensee shall not distribute, sublicense, transfer, sell, offer for sale, disclose, or make available any of the Licensed Materials or any part of the Services to any third party. Except through services provided by ZoomInfo or its affiliates or as expressly permitted by ZoomInfo, Licensee shall not: (x) use the Licensed Materials to create audience segmentation for or otherwise place digital ads or ads in digital media (also known as onboarding or digital activation), or (y) utilize or incorporate any ZoomInfo API credentials into any Third Party Applications or use API access to create or develop audience segmentation outside of services provided by ZoomInfo. Licensee shall not incorporate any portion of the Services or Licensed Materials into Licensee’s own products or services. Licensee is solely responsible for any communications between Licensee or any Authorized User and any Licensed Materials Contact. Licensee shall not use the Services to determine a consumer’s eligibility for (a) credit or insurance for personal, family or household purposes, (b) employment or (c) a government license or benefit or (d) any other purpose governed by the Fair Credit Reporting Act. [...] 2.4 Permitted Use of ZoomInfo Technology, Restrictions. [...] Licensee will not [...] (g) disclose the results of any ZoomInfo Technology or program benchmark tests to any third parties without ZoomInfo’s prior written consent, [...]

Plan
Pay	$0
You get	1,000 credits
Enough for	3,888,000 calls a month

Rate limit
Per day	129,600
Per second	3
Batch	1

The call
You send	filter[referencePersonId]. Optional: filter[targetCompanyId], page[size]
Method	GET
Path	/copilot/v1/contacts/lookalikes

About the plan
Plan	Free
Who can get it	employees of the company that holds the account (a contractor only with ZoomInfo's prior permission), each with their own login and a business email address

The 6 fields the plan's answer can hold

person ID, rank, similarity score, person brief, reference person ID, reference person brief