FonteData Blog

Brazilian data intelligence

Technical articles on APIs, compliance, CNPJ, CPF and integrations

12 min read

Registration Status at the Receita Federal: Every CNPJ and CPF Status Explained

Understand every CNPJ and CPF registration status at the Receita Federal — active, suspended, inapt, closed, null — what each means, the consequences, and how to regularize.

registration statuscnpjcpf
12 min read

Brazil's Federal Social Benefits in Data (2026): An X-Ray of 24.8 Million Beneficiaries

Brazil's 6 largest federal social programs in public data: 24.8 million beneficiaries, R$292 billion a year, and the pitfalls of NIS keys, masked CPFs and seasonality.

transparency-portalopen-datasocial-benefits
11 min read

Brazil CNPJ Lookup API (2026): The Complete Guide

How to look up CNPJs via API with data from the Receita Federal: registration status, ownership (QSA), CNAE, company size and Simples Nacional. Complete guide with use cases and best practices. R$50 in free credits, no card required.

cnpj lookupcnpj apicnpj validation
10 min read

67 Million CNPJs: Entrepreneurship, Precarious Work, or Formalization?

An original analysis of 274 million records from the Receita Federal, PGFN, and BNDES. 96% of new companies are solo ventures, MEI leads the federal debt registry, and the top 1,000 hold 88.6% of all capital. What does Brazil's CNPJ boom really mean?

cnpjreceita-federalmei
11 min read

Judicial Reorganizations in Brazil Grew 69% in 3 Years: A Complete X-Ray Using Receita Federal Data

An original analysis of Brazil's national CNPJ registry. Quarterly evolution from 2023 to 2026, profiles by company size, CNAE sector and state, cross-referenced with PGFN tax debt and BNDES financing.

judicial-reorganizationreceita-federalcnpj
9 min read

Age Verification on Digital Platforms (Lei 15.211/2025) — An API Implementation Guide

Brazil's Lei 15.211/2025 requires age verification on digital platforms. See who needs to comply, the deadlines, and how to automate validation with a CPF API in minutes.

eca digitalage verificationcpf
10 min read

iGaming Compliance in Brazil: How to Verify Bettors with CPF and Sanctions Lists

The complete guide to iGaming compliance in Brazil. Understand Lei 14.790/2023, mandatory KYC, sanctions lists, and how to verify bettors through a CPF API.

igaming complianceigaming brazilbettor verification
11 min read

New Pix Rules for 2026: Mandatory CPF and CNPJ Validation Against Receita Federal Records

Resolução BCB nº 457/2025 requires CPF and CNPJ validation against Receita Federal records for Pix keys. Understand what changed, who is affected, and how to automate compliance via API.

pixcpf validationcnpj validation
11 min read

Alphanumeric CNPJ in 2026: Timeline, New Format, and How to Adapt Your Systems

New CNPJs with letters and digits starting July 2026. Official timeline, check-digit calculation, updated regex and code samples to get your system ready.

cnpjalphanumeric-cnpjapi
11 min read

Brazil CPF Lookup API (2026) — Tutorial with Code Examples

Look up CPFs via REST API with data from the Receita Federal. Tutorial with examples in Python, Node.js and cURL. Free signup with R$50 in credits, no card required.

cpf lookupcpf apicpf validation