Terms of use

This is a courtesy translation. The Portuguese-language version of this document is the legally binding one; in case of any discrepancy, the Portuguese version prevails.

Last updated: July 2, 2026.

Nature of the service

CNPJ API offers a public CNPJ lookup experience and presents information about its API, plans and commercial use.

This site is informational and operational in nature. It does not replace a contract, a commercial proposal, an SLA, complete technical documentation or legal advice.

Data source

The results shown in the public lookup are based on public data related to the CNPJ, organized into a format accessible for human browsing.

Although effort is made to keep the information useful and up to date, there may be delays, temporary unavailability or discrepancies arising from the public origin of the data.

Permitted use

You may use this site for legitimate lookups, product evaluation, testing and institutional browsing.

You may not use this environment for automated abuse, fraud attempts, exploitation of vulnerabilities, improper scraping, denial of service or any unlawful purpose.

Limits and the free tier

The free public lookup may be subject to limitation by IP, volume, frequency, abuse protection and other operational criteria defined by GUIDI SISTEMAS E SERVICOS EM TECNOLOGIA DA INFORMACAO LTDA.

When your needs involve higher volume or systemic integration, you should move to the appropriate commercial arrangement.

Commercial use and integrations

The fact that the site presents the API does not automatically grant an unrestricted right to use it in a production environment, resale, sublicensing or mass replication.

Commercial terms, limits, pricing, support and the technical scope of integrations depend on specific alignment with the responsible team.

Availability and changes

The site, its texts, limits, plans, routes and experience elements may be changed, corrected, removed or discontinued at any time, without prior notice.

Unavailability may also occur due to maintenance, protective measures, technical updates or external factors.

Liability

GUIDI SISTEMAS E SERVICOS EM TECNOLOGIA DA INFORMACAO LTDA makes reasonable efforts to keep the environment functional, but does not guarantee the absence of failures, interruptions or full compatibility with every browser, device or user flow.

Any commercial, operational, registration or contractual decision based on a lookup performed on this site must be validated by the user according to their own needs and risk level.

Intellectual property

The brand, visual identity, texts, structure of this landing page, proprietary code and other materials owned by the site belong to GUIDI SISTEMAS E SERVICOS EM TECNOLOGIA DA INFORMACAO LTDA or are used legitimately.

Reproduction, adaptation or exploitation of these materials without prior authorization is prohibited, except in cases permitted by law.

Contact and jurisdiction

Questions about these terms can be sent to comercial@guidisistemas.com.br.

The courts of the Judicial District of Rio de Janeiro, State of Rio de Janeiro, shall have exclusive jurisdiction over any disputes arising out of or in connection with these Terms of Use, except where mandatory legal provisions require otherwise.