Why do I need CNAE codes?

**CNAE is mandatory** for every business operating in Brazil. It determines your tax regime (Simples Nacional, Lucro Presumido), eligible activities for MEI registration, CNPJ registration, municipal licensing, and regulatory compliance.

IBGE Economia — CNAE Activities MCP Server for Cursor 5 tools — connect in under 2 minutes

Name: IBGE Economia — CNAE Activities
Availability: InStock
Author: Vinkius

docs.cursor.com/context/model-context-protocol

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Cursor is an AI-first code editor built on VS Code that integrates LLM-powered coding assistance directly into the development workflow. Its Agent mode enables autonomous multi-step coding tasks, and MCP support lets agents access external data sources and APIs during code generation.

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Classic Setup·json

{
  "mcpServers": {
    "ibge-economia-cnae-activities": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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About IBGE Economia — CNAE Activities MCP Server

Give your AI agent mastery over the CNAE — Brazil's official classification of every economic activity, used for tax registration, business licensing, regulatory compliance, and market research.

Cursor's Agent mode turns IBGE Economia — CNAE Activities into an in-editor superpower. Ask Cursor to generate code using live data from IBGE Economia — CNAE Activities and it fetches, processes, and writes. all in a single agentic loop. 5 tools appear alongside file editing and terminal access, creating a unified development environment grounded in real-time information.

What you can do

21 Sections (A-U) — Top-level economic sectors: Agriculture, Mining, Manufacturing, IT, Finance, Health, etc.
87 Divisions — Drill into specific industries within each sector
285 Groups & 672 Classes — Granular business activity classification
1,332 Subclasses — The most specific activity code used on CNPJ (Brazilian business registration)

The IBGE Economia — CNAE Activities MCP Server exposes 5 tools through the Vinkius. Connect it to Cursor in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect IBGE Economia — CNAE Activities to Cursor via MCP

Follow these steps to integrate the IBGE Economia — CNAE Activities MCP Server with Cursor.

Open MCP Settings

Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"

Add the server config

Paste the JSON configuration above into the mcp.json file that opens

Save the file

Cursor will automatically detect the new MCP server

Start using IBGE Economia — CNAE Activities

Open Agent mode in chat and ask: "Using IBGE Economia — CNAE Activities, help me...". 5 tools available

Why Use Cursor with the IBGE Economia — CNAE Activities MCP Server

Cursor AI Code Editor provides unique advantages when paired with IBGE Economia — CNAE Activities through the Model Context Protocol.

Agent mode turns Cursor into an autonomous coding assistant that can read files, run commands, and call MCP tools without switching context

Cursor's Composer feature can generate entire files using real-time data fetched through MCP. no copy-pasting from external dashboards

MCP tools appear alongside built-in tools like file reading and terminal access, creating a unified agentic environment

VS Code extension compatibility means your existing workflow, keybindings, and extensions all work alongside MCP tools

IBGE Economia — CNAE Activities + Cursor Use Cases

Practical scenarios where Cursor combined with the IBGE Economia — CNAE Activities MCP Server delivers measurable value.

Code generation with live data: ask Cursor to generate a security report module using live DNS and subdomain data fetched through MCP

Automated documentation: have Cursor query your API's tool schemas and generate TypeScript interfaces or OpenAPI specs automatically

Infrastructure-as-code: Cursor can fetch domain configurations and generate corresponding Terraform or CloudFormation templates

Test scaffolding: ask Cursor to pull real API responses via MCP and generate unit test fixtures from actual data

IBGE Economia — CNAE Activities MCP Tools for Cursor (5)

These 5 tools become available when you connect IBGE Economia — CNAE Activities to Cursor via MCP:

get_subclasse_cnae

Get CNAE subclass details

list_classes_cnae

g., 62 for IT activities). List CNAE classes within a division

list_divisoes_cnae

g., A for Agriculture, C for Manufacturing). List CNAE divisions within a section

list_secoes_cnae

List all 21 CNAE economic sections (A-U)

list_subclasses_por_classe

g., 62015). List all subclasses within a CNAE class

Example Prompts for IBGE Economia — CNAE Activities in Cursor

Ready-to-use prompts you can give your Cursor agent to start working with IBGE Economia — CNAE Activities immediately.

"What CNAE code should I use for a software development company?"

"What economic sectors exist under section C (Manufacturing)?"

"What is CNAE subclass 4711-3/01?"

Troubleshooting IBGE Economia — CNAE Activities MCP Server with Cursor

Common issues when connecting IBGE Economia — CNAE Activities to Cursor through the Vinkius, and how to resolve them.

Tools not appearing in Cursor

Ensure you are in Agent mode (not Ask mode). MCP tools only work in Agent mode.

Server shows as disconnected

Check Settings → Features → MCP and verify the server status. Try clicking the refresh button.

IBGE Economia — CNAE Activities + Cursor FAQ

Common questions about integrating IBGE Economia — CNAE Activities MCP Server with Cursor.

What is Agent mode and why does it matter for MCP?

Agent mode is Cursor's autonomous execution mode where the AI can perform multi-step tasks: reading files, editing code, running terminal commands, and calling MCP tools. Without Agent mode, Cursor operates in a simpler ask-and-answer mode that doesn't support tool calling. Always ensure you're in Agent mode when working with MCP servers.

Where does Cursor store MCP configuration?

Cursor looks for MCP server configurations in a mcp.json file. You can configure servers at the project level (.cursor/mcp.json in your project root) or globally (~/.cursor/mcp.json). Project-level configs take precedence.

Can Cursor use MCP tools in inline edits?

No. MCP tools are only available in Agent mode through the chat panel. Inline completions and Tab suggestions do not trigger MCP tool calls. This is by design. tool calls require user visibility and approval.

How do I verify MCP tools are loaded?

Open Settings → Features → MCP and look for your server name. A green indicator means the server is connected. You can also check Agent mode's available tools by clicking the tools dropdown in the chat panel.