> For the complete documentation index, see [llms.txt](https://docs.cnpj.ws/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cnpj.ws/en/api-reference/api-comercial.md).

# API - Commercial

This section contains detailed documentation about the Commercial API, which offers various functionalities related to CNPJ queries, API consumption, and Suframa registration validation. Here are the included files:

* **Consulting CNPJ in the Commercial API**: Guide on how to query CNPJ information in the Commercial API.
* **Consulting Monthly Request Consumption**: Instructions for checking monthly request consumption.
* **Consulting by CNPJ Root**: Explanation on how to query by CNPJ root and return all associated branches.
* **Company Search**: Information on how to perform company searches using filters.
* **Validating Suframa Registration**: Details on validating Suframa registrations.

These files provide usage examples, including code in different languages, and describe the responses returned by the API.


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.cnpj.ws/en/api-reference/api-comercial.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.