Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
cnpj.pw is an open-source project focused on public Brazilian CNPJ company registration data. Its goal is to provide the data published monthly by Receita Federal in a structured format, and to make it programmatically accessible to developers through a public API. It is not a general-purpose development framework; it is closer to a data API tool for business registry data, compliance checks, and data analysis scenarios.
Based on the main content, cnpj.pw focuses on combining several capabilities: first, using Receita Federal’s monthly data as its primary data source; second, offering granular filtering by fields such as opening date, partner CPF, CNAE, city, state, registered capital, company name, and more; third, supplementing basic RFB data through web scraping and storing the scraped results in an archive; and fourth, lowering the barrier for system integration through a public API. For teams that need to query Brazilian company information in bulk, perform business intelligence screening, or conduct compliance due diligence, these capabilities have practical value.
The project is clearly marked as open-source and includes a GitHub entry point on the page, which means better transparency and auditability for developers. The API appears to be its main delivery format, but the scraped page content does not provide API examples, authentication methods, SDKs, rate-limit policies, or response formats, so its ease of use still needs to be verified against the actual documentation. In terms of ecosystem positioning, the page explicitly compares itself with open-source projects such as minhareceita and CNPJ Data Pipeline, as well as cnpj.biz, casadosdados, cnpja, and SERPRO’s official products. This suggests that its positioning is to absorb strengths from open-source, commercial, and official services.
The main content does not provide any pricing information, nor does it mention a free quota, commercial plans, payment methods, SLA, or technical support channels. Therefore, from a production adoption perspective, service availability, maintenance frequency, and stability still need further evaluation. If you plan to build critical business workflows on its public API, it is advisable to confirm rate limits, data update mechanisms, and incident response plans first.
Its advantages are that it is open-source, has clearly identified data sources, supports rich query dimensions, and provides an API for easier integration. Its drawbacks are the limited public information and the lack of detail around documentation, deployment, SDKs, self-hosting, and service guarantees. It is better suited to technically capable developers, data engineers, researchers, and business intelligence or compliance teams that need to work with Brazilian CNPJ data.
The main content does not mention network accessibility from mainland China, payment, or localization, so its access status can only be marked as unknown. Since the data topic is highly focused on the Brazilian market, Chinese users who are only looking for domestic company registry data should consider Chinese company information query APIs or local business registry data services as alternatives.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on cnpj.pw official site.
cnpj.pw is an Brazil API & Data provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach cnpj.pw directly.