CNPJAPI

CNPJ API for Accounting Firms

Accounting firms deal with many CNPJs and need to keep clients' registration data always up to date. Collecting this manually, company by company, takes hours. CNPJAPI automates that collection with official Receita Federal data.

The problem

  • Manual checking of registration status and tax framework every reporting period.
  • Rework to update the address, partners, and business activity of dozens of clients.
  • Risk of working with outdated data.

How the API solves it

A CNPJ lookup returns the data the firm uses day to day:

  • Registration status and its date
  • Simples Nacional status (when reported by the source)
  • Legal nature and company size
  • Primary and secondary CNAE
  • Shareholder structure (QSA) and address

Ideal for periodic routines: go through the client portfolio and update all the records at once. See how to look up in batch while respecting the rate limit.

Where to start

  1. Generate your API key at https://app.cnpjapi.com.br.
  2. Run the lookup against the portfolio's list of CNPJs.
  3. Save the fields into your accounting system or spreadsheet.

See the field dictionary and create your free account to get started.