How to Use the Focus NFe MCP in Claude

Q: Can I cancel invoices using Focus NFe in Claude Desktop?

Yes, you can use the canceldocument tool. Just provide the document ID and the required justification, and the agent sends the cancellation request to the API.

Emit and manage tax documents directly from your Claude Desktop app without switching windows or messing with manual API calls.

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Connect Focus NFe MCP to Claude Desktop

Create your Vinkius account to connect Focus NFe to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Focus NFe with Claude Desktop

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Fast invoice emission in Claude Desktop

Trigger `emit_nfe` or `emit_nfse` directly from your chat interface. You provide the payload details, and the server handles the communication with the tax authorities. Stop copying JSON into external tools. Your agent handles the entire request-response cycle and confirms emission status immediately.

Status checks for your tax documents

Use `consult_document` to verify if an invoice was authorized or rejected by the tax office. You get the actual status code and relevant messages back in the conversation. It’s a quick way to handle errors. If something fails, you see exactly what happened without digging through logs.

Download verified XML files

Pull authorized XML files using `download_xml` once the invoice is cleared. The file content becomes available for you to review or save locally. This keeps your records tidy. You get the raw data you need, right when the agent confirms the process is done.

Setup guide

Set up Focus NFe MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Focus NFe MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Focus NFe MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under focus-nfe-mcp.

json

{
  "mcpServers": {
    "focus-nfe-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Focus NFe. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

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Common questions about Focus NFe MCP in Claude Desktop

Open your configuration file located in the application support folder for Claude. Add the server entry under the mcpServers key, save the file, and restart the app to see the tools.

Yes, you can use the `cancel_document` tool. Just provide the document ID and the required justification, and the agent sends the cancellation request to the API.

Your data is transmitted directly between the server and the API. Only the specific invoice details required for the tax operation are processed by the tools.

Yes, you can paste the remote URL into your Integrations settings in the browser. It works exactly like the desktop version once configured.

The server returns the specific error message provided by the tax authority. You can then ask the agent to help you fix the data and try again.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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