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Sixtyfour pricing and alternatives: similar people API

Sixtyfour's sitellms.txtBest similar people API in 2026

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15% complete: 2 of the 13 key fields we checkSee the 13 fields
$0.00per 1,000 peopleWe rank 23 plans by price. Kooperativa's $499 monthly plan costs the least per 1,000 people: as little as $0.00023. Kooperativa's $499 monthly plan covers up to 21,600,000 pages a month at no extra cost. Each page holds 100 people.ZoomInfo's $45 pack covers any number of people. ZoomInfo's $45 pack costs less to start than Kooperativa's $499 monthly plan.Reverse Contact, DiscoLike and Anysite are the best similar people API providers in our benchmark.
Plan: Free one of Sixtyfour's 3 plans
Call: POST /search/lookalike Sixtyfour's only call for this API
API: Similar people API one of Sixtyfour's 11 APIs

About this item

  • Freshness. We don't know how fresh this plan's data is.
  • 2 of the 13 key fields we check. Experience, Headline.
  • Nothing to pay. You get 64 credits a month. Calls stop once your credits run out. Unused credits expire: does not roll over.
  • One call. You send linkedin_urls or csv_resource_handle_id to POST /search/lookalike. You can also send guidance and analysis_sample_size. The call returns a job. You fetch the answer once the job is done.
  • Who can get it: anyone aged 18 or over. Keep data: no limit. Use data: with conditions.

Sixtyfour: similar people API alternatives

We list other providers' plans closest to this plan in price per 1,000 people.

This planSixtyfour, freeReverse Contact, freeAnysite, freeSocial Fetch, freeSocialCrawl, freeLusha, free
$ per 1,000 people$0.00$0.00$0.00$0.00$0.00$0.00
Completeness15%100%92%92%15%15%
Billingfreefreefreefreefreefree
Pay$0$0$0$0$0$0
Enough fornot published500 results, once1,000 resultsabout 33 pages20 pages, oncenot published
Freshnessunknownstoredstoredliveliveunknown
Who can get itanyone aged 18 or overprofessionals acting in their professional capacity, not as consumers, one trial per customeranyone 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 cardanyone, for an organisation, someone with the authority to bind itanyone 18 or overanyone 18 or over with a business email

Every similar people API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-27.

  1. docs.sixtyfour.ai/api-reference/errors
  2. docs.sixtyfour.ai/api-reference/search/filter-search
  3. docs.sixtyfour.ai/api-reference/search/lookalike-search
  4. docs.sixtyfour.ai/api-reference/search/search-endpoints
  5. docs.sixtyfour.ai/get-api-key
  6. docs.sixtyfour.ai/guides/credits-and-pricing.md
  7. docs.sixtyfour.ai/introduction
  8. sixtyfour.ai/legal/terms-of-service

Product details

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

  • Experiencecurrent job
  • Education, not in the answer
  • Skills, not in the answer
  • Headline
  • About, not in the answer
  • 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 people$0.00
Billingfree
Charges
Also pays forfrom the same budget: Company Intelligence · People Intelligence · Deep Investigations · Bulk Intelligence · Find Email · Verify Email · Reverse Email · Find Phone · Reverse Phone · QA Agent · Age Verification · Deep Search · Filter Search · Search Export · Enrich LinkedIn Profile
Overage
Units caphard
Not found
$ per 1,000$0.00
In their words
Their pitchFind people who resemble a list you already have, such as your best customers or recent hires, and get them ranked by similarity.
Data
Keep datano limit
Use data"The Content and Marks are provided in or through the Services \"AS IS\" for your internal business purpose only." "[...] no part of the Services and no Content or Marks may be copied, reproduced, aggregated, republished, uploaded, posted, publicly displayed, encoded, translated, transmitted, distributed, sold, licensed, or otherwise exploited for any commercial purpose whatsoever, without our express prior written permission." "You may not access or use the Services for any purpose other than that for which we make the Services available. The Services may not be used in connection with any commercial endeavors except those that are specifically endorsed or approved by us." "As a user of the Services, you agree not to: Systematically retrieve data or other content from the Services to create or compile, directly or indirectly, a collection, compilation, database, or directory without written permission from us. [...] Use any information obtained from the Services in order to harass, abuse, or harm another person. [...] Use the Services in a manner inconsistent with any applicable laws or regulations. [...] Engage in any automated use of the system, such as using scripts to send comments or messages, or using any data mining, robots, or similar data gathering and extraction tools. [...] Interfere with, disrupt, or create an undue burden on the Services or the networks or services connected to the Services. [...] Except as may be the result of standard search engine or Internet browser usage, use, launch, develop, or distribute any automated system, including without limitation, any spider, robot, cheat utility, scraper, or offline reader that accesses the Services, or use or launch any unauthorized script or other software. [...] Use the Services as part of any effort to compete with us or otherwise use the Services and/or the Content for any revenue-generating endeavor or commercial enterprise. Use the Services to advertise or offer to sell goods and services. Sell or otherwise transfer your profile."
Plan
Pay$0
You get64 credits a month
Expiresdoes not roll over
Rate limit
Per second3.33
Batch1,000
Speed
Answerby polling
The call
You sendone of linkedin_urls or csv_resource_handle_id. Optional: guidance, analysis_sample_size
MethodPOST
Path/search/lookalike
About the plan
PlanFree
Who can get itanyone aged 18 or over
The 10 fields the plan's answer can hold

search ID, total results, public ID, full name, headline, profile photo, current company logo, lookalike score, lookalike rank, lookalike evidence

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