# CNPJ Aberto, free: People search API

> Busca sócios por nome ou documento, com filtros opcionais.

CNPJ Aberto's Gratuito plan for the people search API costs $0.00 per 1,000 people. We check each provider's docs for 13 fields: Experience, Education, Skills, Headline and 9 more. CNPJ Aberto's docs list none of the 13.
We haven't run CNPJ Aberto through [our people search API benchmark](https://datacircle.dev/best-people-search-api.txt) yet.
This plan is free. We rank 724 plans for people search APIs by price. Half the plans cost $4.75 or less per 1,000 people. [See the best free people search API plan.](https://datacircle.dev/best-people-search-api.txt)
[Coresignal's $49 monthly plan](https://datacircle.dev/people-search-apis/coresignal/49-monthly/llms.txt) is the cheapest paid plan per 1,000 people. Coresignal's $49 monthly plan charges nothing per call. You get as many people as Coresignal's rate limit allows. [Seltz's pay-as-you-go plan](https://datacircle.dev/people-search-apis/seltz/pay-as-you-go-pay-as-you-go-post-v1-search-search-base/llms.txt) costs the least for 10,000 people a month: $0.03.
[PeopleSearch.im's $5 pack (/api/v1/search)](https://datacircle.dev/people-search-apis/peoplesearch-im/5-pack-starter-post-api-v1-search/llms.txt) covers any number of people. PeopleSearch.im's $5 pack costs less up front than Coresignal's $49 monthly plan.
[GetProspect](https://datacircle.dev/people-search-apis/getprospect/49-monthly-starter-post-v2-people-search-people-search/llms.txt), [QuickEnrich](https://datacircle.dev/people-search-apis/quickenrich/399-monthly-gtm-unlimited-get-api-employees-dataset-search/llms.txt) and [AnyAPI](https://datacircle.dev/people-search-apis/anyapi/top-up-from-10-manual-top-up-post-v1-run-people-search-quickenrich/llms.txt) are the best people search API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/people-search-apis/cnpj-aberto/free
- [People lookup API: best people search providers compared](https://datacircle.dev/best-people-search-api.txt)
- Get it: https://cnpjaberto.com.br/planos?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing
- Request: `GET https://cnpjaberto.com.br/api/socios/busca`
- API key: with the plan, on https://cnpjaberto.com.br/planos?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing
- Its API docs: https://cnpjaberto.com.br/api-docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing#endpoint-GET-/api/socios/busca
- Sold by: CNPJ Aberto (https://cnpjaberto.com.br?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 0%

## Price

- $ per 1,000 people: $0.00
- Per: page of 50
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: GET /api/cnpj/{cnpj} · GET /api/cnpj/{cnpj}/filiais · GET /api/busca-avancada · GET /api/socio/empresas · GET /api/cnae/{codigo}/stats · GET /api/municipios-por-uf · GET /api/municipios/search · GET /api/intelligence/rede

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Busca sócios por nome ou documento, com filtros opcionais.

## Data

- Freshness: 1 month
- Countries: Brazil
- Keep data: no limit
- Use data: 4. Uso permitido: "Você pode utilizar a Plataforma para: Consultar dados públicos de empresas para fins legítimos (due diligence, compliance, análise comercial, jornalismo, etc.). Integrar dados via API dentro dos limites do seu plano. Exportar dados nos formatos disponíveis para uso pessoal ou profissional." 5. Uso proibido: "É expressamente proibido: Utilizar bots, scrapers ou mecanismos automatizados para contornar os limites de uso. Revender ou redistribuir dados obtidos pela Plataforma como base de dados independente. Utilizar os dados para fins ilegais, discriminatórios ou que violem a privacidade de terceiros. Tentar acessar áreas restritas do sistema ou comprometer a segurança da Plataforma. Criar múltiplas contas para contornar limites de uso."

## Plan

- Pay: R$0
- You get: 200 requests a day
- Enough for: 200 pages a day

## Rate limit

- Per day: 200
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: one of nome or cpf. Optional: tipo, faixa_etaria, municipio, page, per_page
- Method: GET
- Path: /api/socios/busca

## About the plan

- Plan: Gratuito
- Who can get it: anyone who registers

## The 10 fields the plan's answer can hold

total results, total results capped, partner name, partner CPF or CNPJ, partner type, partner qualification, CNPJ, legal name, state, warnings

## CNPJ Aberto's plans (3)

- [CNPJ Aberto, free](https://datacircle.dev/people-search-apis/cnpj-aberto/free/llms.txt): $0.00 per 1,000, 0% complete, 1 month
- [CNPJ Aberto, R$47 monthly](https://datacircle.dev/people-search-apis/cnpj-aberto/r-47-monthly/llms.txt): $0.0037 per 1,000, 0% complete, 1 month
- [CNPJ Aberto, R$449 yearly](https://datacircle.dev/people-search-apis/cnpj-aberto/r-449-yearly/llms.txt): $0.0029 per 1,000, 0% complete, 1 month

## CNPJ Aberto's calls for this API (1)

- `GET /api/socios/busca`: [CNPJ Aberto, free](https://datacircle.dev/people-search-apis/cnpj-aberto/free/llms.txt)

## CNPJ Aberto's APIs (5)

- [CNPJ Aberto: company discovery API pricing, 3 plans](https://datacircle.dev/company-discovery-apis/cnpj-aberto/free/llms.txt)
- [CNPJ Aberto: company enrichment API pricing, 3 plans](https://datacircle.dev/company-enrichment-apis/cnpj-aberto/free/llms.txt)
- [CNPJ Aberto: people search API pricing, 3 plans](https://datacircle.dev/people-search-apis/cnpj-aberto/free/llms.txt)
- [CNPJ Aberto: people enrichment API pricing, 2 plans](https://datacircle.dev/person-enrichment-apis/cnpj-aberto/r-47-monthly/llms.txt)
- [CNPJ Aberto: company hierarchy API pricing, 2 plans, GET /api/intelligence/grupo/{cnpj}](https://datacircle.dev/company-hierarchy-apis/cnpj-aberto/r-47-monthly-pro-get-api-intelligence-grupo-cnpj/llms.txt)
- [CNPJ Aberto: company hierarchy API pricing, 2 plans, GET /api/controle/{cnpj}](https://datacircle.dev/company-hierarchy-apis/cnpj-aberto/r-47-monthly-pro-get-api-controle-cnpj/llms.txt)

## CNPJ Aberto: people search API alternatives

- [Firmbase, €29 monthly, Pro, GET /v1/officers](https://datacircle.dev/people-search-apis/firmbase/29-monthly-pro-get-v1-officers/llms.txt): $0.00082 per 1,000, 0% complete, 24 hours
- [Apollo, $4,284 yearly](https://datacircle.dev/people-search-apis/apollo/4284-yearly/llms.txt): $0.0024 per 1,000, 8% complete, 1 month
- [Snov.io, $1,701 yearly, Pro M, POST /v2/database-search/prospects/start](https://datacircle.dev/people-search-apis/snov-io/1701-yearly-pro-m-post-v2-database-search-prospects-start/llms.txt): $0.0027 per 1,000, 15% complete, 1 month
- [The Swarm, $96,000 yearly, Enterprise 20000, POST /v3/profiles/search](https://datacircle.dev/people-search-apis/the-swarm/96000-yearly-enterprise-20000-post-v3-profiles-search/llms.txt): $0.0031 per 1,000, 0% complete, 1 day

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

- https://cnpjaberto.com.br/api-docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing
- https://cnpjaberto.com.br/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing
- https://cnpjaberto.com.br/planos?billing=monthly&utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing
- https://cnpjaberto.com.br/solucoes/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing
- https://cnpjaberto.com.br/termos?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=people-search-api-pricing