cnpj.ia.br

br.ia.cnpjPublished by cnpj.ia.brOfficial publisherv0.1.1Updated Oct 24, 2026

Empresas do Brasil (CNPJ): consulta por CNPJ, busca por filtros e uso da conta.

The publisher's own server: cnpj.ai

VerifiedStreamable HTTPWeb executableBusiness & Commerce

Overview

AI-generated overview

Lets an assistant look up Brazilian companies by CNPJ number, search them by filters, and use the associated account.

What you can do
This remote server gives an assistant access to Brazilian company (CNPJ) data. It supports lookup of a company by its CNPJ number, searching companies by filters, and using the associated account. The manifest does not list individual tools, so the exact operations are not documented here.
When to use it
Useful when an assistant needs to identify or verify a Brazilian company from its CNPJ, or to find companies matching certain criteria during research, onboarding or due-diligence work.
Requirements
A remote MCP endpoint reached over streamable HTTP; no local package or runtime is needed. Authentication is required via OAuth, and an Authorization header is used. An optional bearer key can be created in the provider's app, but no environment variables are declared.
Before you install
An Authorization credential is required and must be kept secret. The manifest does not describe what the account features do or whether any operation writes, changes or deletes data, so check the provider's documentation before granting access.

Installation

In SourceWeft

  1. Open cnpj.ia.br in the dashboard and add it to a workspace.
  2. Connect the required credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/br.ia.cnpj%2Fmcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "cnpj-ia-br": {
      "type": "http",
      "url": "https://mcp.cnpj.ia.br/"
    }
  }
}

README

This repository has no README.

Tools

0
This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

2
  1. v0.1.1LatestSep 23, 2026
  2. v0.1.0Sep 20, 2026

Score

60% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

Other Cnpj integrations

cnpj.ai

ai.cnpjOfficial publisher

Look up Brazilian company records by CNPJ, including partners and corporate connections, from an assistant.

Streamable HTTPWeb executableAuth
Data & AnalyticsCredential requiredOct 24, 2026

Fichário — CNPJ Brasil

Published by GitHub account thiagopatzdorf

Remote MCP server for looking up Brazilian companies by CNPJ or name, with competitors, B3 market data and court publications.

Streamable HTTPWeb executable
Finance5 toolsNov 1, 2026

Brazil CNPJ company registry

Published by GitHub account bnovarini

Remote MCP server for Brazil's open CNPJ company registry, letting an assistant search, count and inspect companies, partners and addresses.

Streamable HTTPWeb executable
Data & Analytics8 toolsOct 25, 2026

Empresas BR (CNPJ due diligence)

Published by GitHub account DouglasGouvea

Lets an assistant run Brazilian company due-diligence checks by CNPJ, covering registry data, sanctions, federal contracts and CVM records with sources.

Streamable HTTPWeb executableAuth
FinanceCredential requiredOct 24, 2026

Cnpj Br

Published by GitHub account pipeworx-io

Looks up Brazilian companies in the Receita Federal CNPJ registry, returning legal name, status, address, tax regime and partners.

Streamable HTTPWeb executable
Finance45 toolsOct 31, 2026