# OpenCNPJ, free: Company enrichment API

> O OpenCNPJ transforma bases públicas de empresas brasileiras em uma API gratuita, sem token e sem cadastro.

OpenCNPJ's company enrichment API on its Free plan. It costs $0.00 per 1,000 companies. It returns 3 of the 13 key fields we check: Employees, Headquarters, Phones.
OpenCNPJ limits how many calls you get but gives no number.
Half of the 1,208 plans we rank by price cost $9.90 per 1,000 companies or less. This plan and 70 others tie for the lowest price per 1,000 companies of the 1,208 plans.
[CNPJ API's R$99 monthly plan (/bulk-cnpj)](https://datacircle.dev/company-enrichment-apis/cnpj-api/r-99-monthly-pro-post-bulk-cnpj/llms.txt) covers any number of companies. CNPJ API's R$99 monthly plan costs less to start than Extruct's $49 monthly plan.
[GetProspect](https://datacircle.dev/company-enrichment-apis/getprospect/49-monthly-starter-post-v2-companies-enrich/llms.txt), [Hunter](https://datacircle.dev/company-enrichment-apis/hunter/299-monthly/llms.txt) and [ScrapeUnblocker](https://datacircle.dev/company-enrichment-apis/scrapeunblocker/pay-as-you-go-pay-as-you-go-post-companies-crunchbase/llms.txt) are the best company enrichment API providers in our benchmark for companies in any country.

- This page: https://datacircle.dev/company-enrichment-apis/opencnpj/free
- [Best company enrichment API in 2026: pricing compared](https://datacircle.dev/best-company-enrichment-api.txt)
- Get it: https://opencnpj.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#/limites
- Request: `GET https://api.opencnpj.org/{cnpj}`
- API key: not needed
- Its API docs: https://opencnpj.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#/api
- Sold by: OpenCNPJ (https://opencnpj.org?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 23%
- Employees: ✓
- Headquarters: ✓
- Phones: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: O OpenCNPJ transforma bases públicas de empresas brasileiras em uma API gratuita, sem token e sem cadastro.

## Data

- Freshness: 1 month (CNO updated at, CNO work ID, CNO work name, CNO work company name, CNO work status, CNO work dates, CNO work address, CNO work total area, CNO work responsible qualification, CNO work location code, RNTRC updated at, RNTRC number, RNTRC carrier name, RNTRC category, RNTRC status, RNTRC first registration date, RNTRC status date, RNTRC ZIP code, RNTRC municipality, RNTRC state, RNTRC equivalent carrier, CEPIM updated at, CEPIM entity name, CEPIM agreement number, CEPIM granting body, CEPIM impediment reason, agreements updated at, agreement record type, agreement number, agreement object, agreement status, agreement amount, agreement released amount, bank order number, amendments updated at, amendment record type, amendment code, amendment year and month, amendment author name, amendment type, amendment received amount: 1 day, CEIS updated at, CEIS sanction code, CEIS sanctioned name, CEIS process number, CEIS sanction category, CEIS sanction start date, CEIS sanction end date, CEIS sanctioning body, CEIS legal basis, CNEP updated at, CNEP sanction code, CNEP sanctioned name, CNEP process number, CNEP sanction category, CNEP fine amount, CNEP sanction start date, CNEP sanction end date, CNEP sanctioning body, CNEP legal basis, leniency agreements updated at, leniency agreement ID, leniency agreement company name, leniency agreement status, leniency agreement start date, leniency agreement end date, leniency agreement process number, leniency agreement sanctioning body, leniency agreement effects: 4 hours, tax waivers updated at, tax waiver record type, tax waiver calendar year, tax waiver benefit, tax waiver tax, tax waiver amount, amendment documents updated at, amendment document code, amendment document date, document amendment code, document amendment year, document expense phase, document committed amount, document paid amount, document body, document budget unit, document action: 1 year)
- Countries: Brazil
- Keep data: no limit
- Use data: Sim. O uso é gratuito, inclusive para fins comerciais. Não oferecemos suporte dedicado. [...] A API é indicada para consultas pontuais por CNPJ. Não há uma cota pública fixa para uso normal, mas picos muito altos e constantes podem acionar proteção temporária com retorno 429.

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: cnpj. Optional: datasets
- Method: GET
- Path: /{cnpj}

## About the plan

- Plan: Free
- Who can get it: anyone

## The 152 fields the plan's answer can hold

CNPJ, legal name, trade name, registration status, registration status date, head office or branch, activity start date, main CNAE, secondary CNAEs, legal nature code, legal nature, street type, street, street number, address complement, neighborhood, ZIP code, state, municipality, municipality code, foreign city name, email, phones, share capital, company size, Simples Nacional option, Simples Nacional option date, MEI option, MEI option date, partners, LGPD anonymized, last updated, CNO updated at, CNO work ID, CNO work name, CNO work company name, CNO work status, CNO work dates, CNO work address, CNO work total area, CNO work responsible qualification, CNO work location code, RNTRC updated at, RNTRC number, RNTRC carrier name, RNTRC category, RNTRC status, RNTRC first registration date, RNTRC status date, RNTRC ZIP code, RNTRC municipality, RNTRC state, RNTRC equivalent carrier, payee updated at, payee legal name, payee trade name, payee person type, payee CNAE, payee legal nature, payee address, CEIS updated at, CEIS sanction code, CEIS sanctioned name, CEIS process number, CEIS sanction category, CEIS sanction start date, CEIS sanction end date, CEIS sanctioning body, CEIS legal basis, CEPIM updated at, CEPIM entity name, CEPIM agreement number, CEPIM granting body, CEPIM impediment reason, CNEP updated at, CNEP sanction code, CNEP sanctioned name, CNEP process number, CNEP sanction category, CNEP fine amount, CNEP sanction start date, CNEP sanction end date, CNEP sanctioning body, CNEP legal basis, leniency agreements updated at, leniency agreement ID, leniency agreement company name, leniency agreement status, leniency agreement start date, leniency agreement end date, leniency agreement process number, leniency agreement sanctioning body, leniency agreement effects, bidding updated at, bidding record type, bidding number, bidding process number, bidding object, bidding status, bidding modality, bidding item code, bidding item description, bidding commitment code, bidding commitment amount, public contracts updated at, public contract record type, public contract number, public contract object, public contract status, public contract initial amount, public contract final amount, public contract item code, public contract item description, tax waivers updated at, tax waiver record type, tax waiver calendar year, tax waiver benefit, tax waiver tax, tax waiver amount, invoices updated at, invoice record type, invoice CNPJ role, invoice access key, invoice amount, invoice product number, invoice product description, agreements updated at, agreement record type, agreement number, agreement object, agreement status, agreement amount, agreement released amount, bank order number, amendments updated at, amendment record type, amendment code, amendment year and month, amendment author name, amendment type, amendment received amount, amendment documents updated at, amendment document code, amendment document date, document amendment code, document amendment year, document expense phase, document committed amount, document paid amount, document body, document budget unit, document action

## OpenCNPJ's plans (1)

- [OpenCNPJ, free](https://datacircle.dev/company-enrichment-apis/opencnpj/free/llms.txt): $0.00 per 1,000, 23% complete, 1 month (CNO updated at, CNO work ID, CNO work name, CNO work company name, CNO work status, CNO work dates, CNO work address, CNO work total area, CNO work responsible qualification, CNO work location code, RNTRC updated at, RNTRC number, RNTRC carrier name, RNTRC category, RNTRC status, RNTRC first registration date, RNTRC status date, RNTRC ZIP code, RNTRC municipality, RNTRC state, RNTRC equivalent carrier, CEPIM updated at, CEPIM entity name, CEPIM agreement number, CEPIM granting body, CEPIM impediment reason, agreements updated at, agreement record type, agreement number, agreement object, agreement status, agreement amount, agreement released amount, bank order number, amendments updated at, amendment record type, amendment code, amendment year and month, amendment author name, amendment type, amendment received amount: 1 day, CEIS updated at, CEIS sanction code, CEIS sanctioned name, CEIS process number, CEIS sanction category, CEIS sanction start date, CEIS sanction end date, CEIS sanctioning body, CEIS legal basis, CNEP updated at, CNEP sanction code, CNEP sanctioned name, CNEP process number, CNEP sanction category, CNEP fine amount, CNEP sanction start date, CNEP sanction end date, CNEP sanctioning body, CNEP legal basis, leniency agreements updated at, leniency agreement ID, leniency agreement company name, leniency agreement status, leniency agreement start date, leniency agreement end date, leniency agreement process number, leniency agreement sanctioning body, leniency agreement effects: 4 hours, tax waivers updated at, tax waiver record type, tax waiver calendar year, tax waiver benefit, tax waiver tax, tax waiver amount, amendment documents updated at, amendment document code, amendment document date, document amendment code, document amendment year, document expense phase, document committed amount, document paid amount, document body, document budget unit, document action: 1 year)

## OpenCNPJ's calls (1)

- `GET /{cnpj}`: [OpenCNPJ, free](https://datacircle.dev/company-enrichment-apis/opencnpj/free/llms.txt)

## OpenCNPJ's APIs (1)

- [OpenCNPJ: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/opencnpj/free/llms.txt)

## OpenCNPJ: company enrichment API alternatives

- [INSEE, free, Accès public, GET /siret/{siret}](https://datacircle.dev/company-enrichment-apis/insee/free-acces-public-get-siret-siret/llms.txt): $0.00 per 1,000, 31% complete, 24 hours
- [apipj, free](https://datacircle.dev/company-enrichment-apis/apipj/free/llms.txt): $0.00 per 1,000, 23% complete, 1 month
- [ScrapeUnblocker, free, POST /companies/crunchbase](https://datacircle.dev/company-enrichment-apis/scrapeunblocker/free-free-post-companies-crunchbase/llms.txt): $0.00 per 1,000, 85% complete, live
- [MillionPhones, free](https://datacircle.dev/company-enrichment-apis/millionphones/free/llms.txt): $0.00 per 1,000, 31% complete, 1 month
- [Ministry of Justice, Public Administration and Digital Transformation of Croatia, free](https://datacircle.dev/company-enrichment-apis/ministry-of-justice-public-administration-and-digital-transformation-of-croatia/free/llms.txt): $0.00 per 1,000, 8% complete, 3 days

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-02.

- https://github.com/Hitmasu/OpenCNPJ?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://opencnpj.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#/api
- https://opencnpj.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#/datasets/receita
- https://opencnpj.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#/faq
- https://opencnpj.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#/limites
- https://opencnpj.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing#/sobre
- https://opencnpj.org/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing