Brazil CNPJ Fetch API
Verify business identities across Brazil with CNPJ checks
Signzy's CNPJ verification API connects directly to authoritative data sources so you can confirm a business's identity, status, ownership, and activity before onboarding.
Trusted by top financial institutions and fintech leaders
From banks to payment companies, hundreds of businesses rely on Signzy to perform CNPJ checks at scale and reduce fraud risk.
Features
CNPJ verification built for reliability
Know who you’re doing business with - onboard confidently, prevent fraud, and stay compliant.
Get the full company profile before you onboard.
Get the full company story in seconds — from UBO checks, legal and trade names to registration date, address, and business activities.
Run instant status checks that matter.
Quickly verify whether a business is active, suspended, or dissolved, so you can make confident, compliant decisions without slowing down operations.
Integrate and go live in Brazil within weeks!
A single API that works seamlessly within your existing onboarding and compliance workflows.
A CNPJ number doesn't always mean a real company
Fraudsters often hide behind inactive or outdated company registrations. With the CNPJ Fetch API, you can instantly uncover the real story behind every number!
Detect inactive, suspended, or shell companies.
Verify legal and trade names against Receita Federal records.
Access CNAE activity codes and secondary activities.
Confirm company addresses and locations.
Review partners and directors where available.
Create an audit trail to support KYB and AML compliance.
Performance Metrics
Built for scale and reliability
Process thousands of CNPJ lookups quickly and securely for enterprise-level verification needs.
How does the API work?
Enter a Brazil CNPJ number, and within seconds, you’ll get the company’s legal name, status, and 10+ output details — all verified from trusted data sources.
Simple steps for CNPJ fetch:
- 1
Submit or bulk upload CNPJ numbers for instant verification.
- 2
Get verified details from official, trusted records.
- 3
Use the data to confirm identity, assess risk,
and stay compliant.
Returned data includes:
CNPJ, legal name, and trade name
Opening date and entity type
Head office indicator
Business activity and legal nature
State, city, postal code, and more
List of all partners
</>Developer Docs
Brazil CNPJ Number Fetch
Brazil CPF Number Fetch
CNPJ verification for every business need
Make every onboarding decision with accurate CNPJ data. With Signzy, CNPJ checks are fast, reliable, and audit-ready.
Merchant onboarding
Validate Brazilian vendors and merchants before activation.
B2B partnerships
Screen suppliers and partners with accurate company data.
Procurement
Ensure suppliers are active and trustworthy.
Designed for developers, trusted by compliance teams.
Integrate the platform during lunch hour, customize based on your needs, and go live within 2-4 weeks :)
FAQ
What is a CNPJ check?
A CNPJ check verifies a Brazilian company’s official registration with Receita Federal, returning details such as legal name, trade name, CNAE activity, and current status.
Why is CNPJ verification important?
CNPJ verification helps prevent fraud, meet KYB/AML obligations, and ensure that suppliers, borrowers, or merchants are legitimate and active.
Can I run bulk CNPJ checks?
Yes. Signzy’s API supports both individual queries and batch CNPJ lookups for portfolio monitoring and compliance reviews.
How current is the CNPJ data?
All responses are sourced directly from authoritative Brazilian databases, ensuring accuracy and up-to-date information.
Can I combine CNPJ verification with other checks?
Yes. You can extend the workflow by adding sanctions screening, PEP checks, and adverse media monitoring.