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n8n-nodes-opencnpj

v0.3.0

Published

n8n node to consult Brazilian company data by CNPJ using OpenCNPJ API.

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Links

Git

Maintainers

deexldeexl

Keywords

n8n-community-node-package

Readme

n8n-nodes-opencnpj

This is an n8n community node that allows you to consult Brazilian company data by CNPJ using the OpenCNPJ API.

n8n is a fair-code licensed workflow automation platform.

Installation
Operations
Credentials
Compatibility
Usage
Resources

Installation

Follow the installation guide in the n8n community nodes documentation.

Operations

Company

  • Get: Retrieve Brazilian company data by CNPJ with automatic validation

Credentials

This node doesn't require any credentials. The OpenCNPJ API is free and doesn't require authentication.

Compatibility

  • Minimum n8n version: 0.175.0
  • Tested with n8n version: 1.113.3

Usage

  1. Add the OpenCNPJ node to your workflow
  2. Select the "Company" resource
  3. Choose the "Get" operation
  4. Enter a valid Brazilian CNPJ (14 digits, with or without punctuation)
  5. Optionally enable "Simplify" to get a cleaner output with the most important fields

Features

  • CNPJ Validation: Automatically validates CNPJ format and check digits before making API requests
  • Multiple Formats: Accepts CNPJ with or without punctuation
  • Error Handling: Clear error messages with guidance on how to fix issues
  • Simplified Output: Option to return only the most important company information
  • Batch Processing: Supports processing multiple CNPJs from previous nodes

Example CNPJ

You can test with this example CNPJ: 11222333000181

Supported CNPJ formats

  • Numbers only: 11222333000181
  • With full punctuation: 11.222.333/0001-81
  • Partial punctuation: 11.222.333/000181

Output Fields (Simplified Mode)

When "Simplify" is enabled, the node returns only the most relevant fields:

  • Company name (razao_social)
  • Trade name (nome_fantasia)
  • Registration status (situacao_cadastral)
  • Company size (porte)
  • Legal nature (natureza_juridica)
  • Share capital (capital_social)
  • Complete address
  • Phone and email
  • Main activity
  • Start date

Error Handling

The node provides clear error messages for common issues:

  • Invalid CNPJ format or check digits
  • Company not found (404)
  • API rate limiting (429)
  • Network or API errors

Resources

License

MIT