business.br-cnpj

SERVERMcp SOURCE@2sio/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-2s-io-mcp/business.br-cnpj.md

WHAT IT DOES

What business.br-cnpj does on Mcp

AI agents call business.br-cnpj to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why business.br-cnpj is rated Low

This tool performs a read-only lookup of public Brazilian company registry data. It retrieves existing open government data without creating, modifying, or deleting anything. The pay-per-call settlement in USDC is a billing mechanism for the API service, not a financial transaction initiated by the tool itself on behalf of the user.

From the tool's definition registry lookup by CNPJ... Returns legal + trade name, registration status, start date, legal nature, size, share capital (BRL), primary CNAE activity, contact, address, and partners/officers (QSA). Free, open Receita Federal data (BrasilAPI).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs business.br-cnpj safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For business.br-cnpj, this is the rule to start with:

business.br-cnpj Allowed

business.br-cnpj is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "business.br-cnpj": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every business.br-cnpj call is checked against it from then on.

FAQ

Questions about business.br-cnpj

What does the business.br-cnpj tool do? +

Brazilian company registry lookup by CNPJ (14-digit company tax ID). Returns legal + trade name, registration status, start date, legal nature, size, share capital (BRL), primary CNAE activity, contact, address, and partners/officers (QSA). Free, open Receita Federal data (BrasilAPI). KYB/diligence for Brazilian companies. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on business.br-cnpj? +

Register the MCP server in PolicyLayer and add a rule for business.br-cnpj: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp. Nothing to install.

What risk level is business.br-cnpj? +

business.br-cnpj is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit business.br-cnpj? +

Yes. Add a rate_limit block to the business.br-cnpj rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block business.br-cnpj completely? +

Set action: deny in the PolicyLayer policy for business.br-cnpj. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides business.br-cnpj? +

business.br-cnpj is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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