# Nock, free: Company hierarchy API > As empresas que controlam o CNPJ (sócios pessoa jurídica, até dois níveis) e as que a cabeça do grupo controla (controladas e compradas com CNPJ próprio), cada uma com atividade principal e situação na Receita, as inativas são contadas. Nock's Teste grátis plan for the company hierarchy API costs $0.00 per 1,000 companies. We check each provider's docs for 3 fields: Company, Parent and Family tree. Nock's docs list none of the 3. You get 500 credits. You spend the credits on Nock's other calls. This call is free. Nock limits how many calls you get but gives no number. We haven't run Nock through [our company hierarchy API benchmark](https://datacircle.dev/best-company-hierarchy-api.txt) yet. This plan is free. We rank 125 plans for company hierarchy APIs by price. Half the plans cost $14.023 or less per 1,000 companies. [See the best free company hierarchy API plan.](https://datacircle.dev/best-company-hierarchy-api.txt) [DanskCVRAPI's DKK 599 (about $90) monthly plan](https://datacircle.dev/company-hierarchy-apis/danskcvrapi/dkk-599-monthly/llms.txt) is the cheapest paid plan per 1,000 companies: $0.045. DanskCVRAPI's plan covers companies in Denmark only. [CNPJ Aberto's R$449 yearly plan](https://datacircle.dev/company-hierarchy-apis/cnpj-aberto/r-449-yearly-pro-anual-get-api-intelligence-grupo-cnpj/llms.txt) costs the least for 10,000 companies a month: about $7.36. [GlobalEntity API's €59 monthly plan](https://datacircle.dev/company-hierarchy-apis/globalentity-api/59-monthly/llms.txt) covers any number of companies in 54 countries only. GlobalEntity API's €59 monthly plan costs less up front than DanskCVRAPI's DKK 599 (about $90) monthly plan. [DiscoLike](https://datacircle.dev/company-hierarchy-apis/discolike/99-monthly/llms.txt), [Bigdata.com](https://datacircle.dev/company-hierarchy-apis/bigdata-com/50-monthly/llms.txt) and [Magellan Data](https://datacircle.dev/company-hierarchy-apis/magellan-data/375-pack-25000-credits-post-v1-corporate-families/llms.txt) are the best company hierarchy API providers in the Datacircle benchmark. - This page: https://datacircle.dev/company-hierarchy-apis/nock/free - [Company hierarchy API: the 5 best of 80+ providers compared](https://datacircle.dev/best-company-hierarchy-api.txt) - Get it: https://usenock.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - Request: `GET https://api.usenock.com/v1/api/companies/cnpj/{cnpj}/group` - API key: with the plan, on https://usenock.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - Its API docs: https://api.usenock.com/v1/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - Sold by: Nock (https://usenock.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing) - Checked: 2026-11-08 ## In the answer - Completeness: 0% ## Price - $ per 1,000 companies: $0.00 - Per: call - Billing: free ## Aggregators - Aggregators: none ## Charges - Also pays for: nothing else ## Overage - Units cap: hard ## Not found - $ per 1,000: $0.00 ## In their words - Their pitch: As empresas que controlam o CNPJ (sócios pessoa jurídica, até dois níveis) e as que a cabeça do grupo controla (controladas e compradas com CNPJ próprio), cada uma com atividade principal e situação na Receita, as inativas são contadas. ## Data - Countries: Brazil - Full family tree: no - Keep data: no limit - Use data: 3: Você pode utilizar a Nock para fins profissionais legítimos, inclusive pesquisa comercial, enriquecimento de dados e prospecção. Você é responsável por definir a base legal e observar as regras aplicáveis às suas abordagens, mensagens, bases de contatos e contas conectadas, incluindo a LGPD e os termos do Google, Microsoft, LinkedIn, Slack, HubSpot, Salesforce e de qualquer cliente MCP que você use. Você não pode utilizar a plataforma para: violar leis, direitos de terceiros ou obrigações contratuais, enviar spam, fraude, assédio, abuso ou comunicação ilegal, tomar decisões proibidas ou discriminatórias com dados pessoais, buscar ou tratar categorias sensíveis sem fundamento adequado, contornar limites, segurança ou mecanismos de cobrança e consumo, fazer scraping, revender ou explorar a plataforma ou dados de provedores sem autorização, usar a Nock como agência ou prestador de serviço para prospectar, enriquecer ou abordar em nome de terceiros, ou revender acesso, resultados ou dados, contas, workspaces e créditos servem só à sua própria organização, usar canais conectados em desacordo com as regras do próprio provedor, inclusive LinkedIn, Gmail, Slack ou políticas de uso de CRMs. ## Plan - Pay: R$0 - You get: 500 credits - Expires: 7 days ## Rate limit - Batch: 1 ## Speed - Answer: in the call ## The call - You send: cnpj - Method: GET - Path: /api/companies/cnpj/{cnpj}/group ## About the plan - Plan: Teste grátis - Who can get it: anyone with a new account, no card needed (500 free credits for 7 days) ## The 10 fields the plan's answer can hold CNPJ, group head, group members, inactive companies, truncated, active establishments, active branches, branch states, branch municipalities, companies linked by partners ## Nock's plans (4) - [Nock, free](https://datacircle.dev/company-hierarchy-apis/nock/free/llms.txt): $0.00 per 1,000, 0% complete - [Nock, R$299 monthly](https://datacircle.dev/company-hierarchy-apis/nock/r-299-monthly/llms.txt): 0% complete - [Nock, R$799 monthly](https://datacircle.dev/company-hierarchy-apis/nock/r-799-monthly/llms.txt): 0% complete - [Nock, contact us](https://datacircle.dev/company-hierarchy-apis/nock/contact-us/llms.txt): 0% complete ## Nock's calls for this API (1) - `GET /api/companies/cnpj/{cnpj}/group`: [Nock, free](https://datacircle.dev/company-hierarchy-apis/nock/free/llms.txt) ## Nock's APIs (7) - [Nock: company discovery API pricing, 4 plans](https://datacircle.dev/company-discovery-apis/nock/free/llms.txt) - [Nock: company hierarchy API pricing, 4 plans](https://datacircle.dev/company-hierarchy-apis/nock/free/llms.txt) - [Nock: email finder API pricing, 4 plans](https://datacircle.dev/find-email-apis/nock/free/llms.txt) - [Nock: phone finder API pricing, 4 plans](https://datacircle.dev/find-phone-apis/nock/free/llms.txt) - [Nock: people search API pricing, 4 plans](https://datacircle.dev/people-search-apis/nock/free/llms.txt) - [Nock: phone validation API pricing, 4 plans](https://datacircle.dev/validate-phone-apis/nock/free/llms.txt) - [Nock: company enrichment API pricing, 4 plans, POST /api/companies/cnpj/batch](https://datacircle.dev/company-enrichment-apis/nock/free-teste-gratis-post-api-companies-cnpj-batch/llms.txt) - [Nock: company enrichment API pricing, 4 plans, POST /api/companies/domain/batch](https://datacircle.dev/company-enrichment-apis/nock/free-teste-gratis-post-api-companies-domain-batch/llms.txt) - [Nock: company enrichment API pricing, 4 plans, GET /api/companies/cnpj/{cnpj}](https://datacircle.dev/company-enrichment-apis/nock/free-teste-gratis-get-api-companies-cnpj-cnpj/llms.txt) - [Nock: company enrichment API pricing, 4 plans, POST /api/enrich/identify](https://datacircle.dev/company-enrichment-apis/nock/free-teste-gratis-post-api-enrich-identify/llms.txt) ## Nock: company hierarchy API alternatives - [Bigdata.com, free](https://datacircle.dev/company-hierarchy-apis/bigdata-com/free/llms.txt): $0.00 per 1,000, 100% complete, stored - [Magellan Data, free, 10,000 free credits, POST /v1/corporate_families](https://datacircle.dev/company-hierarchy-apis/magellan-data/free-10000-free-credits-post-v1-corporate-families/llms.txt): $0.00 per 1,000, 67% complete - [SEC API, free](https://datacircle.dev/company-hierarchy-apis/sec-api/free/llms.txt): $0.00 per 1,000, 67% complete, 1 minute - [USAspending, free](https://datacircle.dev/company-hierarchy-apis/usaspending/free/llms.txt): $0.00 per 1,000, 33% complete - [GlobalEntity API, free](https://datacircle.dev/company-hierarchy-apis/globalentity-api/free/llms.txt): $0.00 per 1,000, 100% complete ## 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://api.usenock.com/v1/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/developers.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/docs/api.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/guias/api-e-mcp-de-prospeccao?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/pricing.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing - https://usenock.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing