Brazil DataGuard — Brazilian CNPJ Validator & Data Quality Analyzer

Validate, normalize, and analyze Brazilian CNPJ identifiers with a single API-ready workflow.

Brazil DataGuard helps developers, data engineers, and automation builders improve the quality of Brazilian business identifiers before importing them into databases, CRM systems, ETL pipelines, and AI workflows.

Key Features

• CNPJ Validation: Validate numeric and alphanumeric Brazilian CNPJ identifiers using check-digit rules.
• Data Normalization: Remove formatting characters and standardize identifiers.
• Duplicate Detection: Detect repeated CNPJ values, including differently formatted versions of the same identifier.
• Data Quality Metrics: Calculate total records, valid records, invalid records, duplicates, and validation success rates.
• Error Analysis: Count invalid records by validation error reason.
• Flexible Reports: Choose between summary reports and detailed record-level results.
• Batch Processing: Process up to 1,000 CNPJ identifiers per run.
• Automation Ready: Use structured JSON input and output within Apify workflows and API integrations.

Example Input

{
  "cnpjs": [
    "11.222.333/0001-81",
    "11222333000181",
    "11.222.333/0001-82",
    ""
  ],
  "modo_relatorio": "resumido"
}

Example Output

{
  "produto": "Brazil DataGuard",
  "sucesso": true,
  "erro": null,
  "modo_relatorio": "resumido",
  "total_registros": 4,
  "total_validos": 2,
  "total_invalidos": 2,
  "total_duplicados": 1,
  "motivos_invalidacao": {
    "Digitos verificadores invalidos": 1,
    "CNPJ nao informado": 1
  },
  "taxa_qualidade": 50.0
}

Ideal Use Cases

• Validate Brazilian company identifiers during data imports.
• Check and normalize business data before ETL transformations.
• Identify duplicates and invalid records in CRM databases.
• Add Brazilian identifier validation to automated workflows.
• Prepare structured validation results for AI agents.

Important Limitations

Brazil DataGuard performs structural and check-digit validation. It does not query Receita Federal or confirm whether a company exists, is active, or has a particular registration status.

Validation results are not official company registration certificates.

Output Modes

Summary (resumido): Returns aggregate quality metrics and error counts without individual records.

Detailed (detalhado): Returns aggregate metrics and individual valid and invalid records, including normalized identifiers and validation reasons.