How to Use the Focus NFe MCP in Cursor

Q: Can I use Focus NFe and Cursor to test invoice cancellation?

Yes, use the canceldocument tool during your development session. It allows you to simulate the full lifecycle of an invoice while building your app.

Q: Does this MCP server support both NF-e and NFS-e in Cursor?

It does. You have access to both emitnfe and emitnfse tools, allowing you to handle product and service tax documents in the same project.

Get Cursor to write code that emits real invoices by connecting this MCP server directly to your project environment.

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Connect Focus NFe MCP to Cursor

Create your Vinkius account to connect Focus NFe to Cursor 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 Cursor

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Claude

Perplexity

Automate tax filings in Cursor

Call `emit_nfe` from your chat or agent mode to send tax data directly to the API. The agent uses the real response to update your code state. No more guessing if your integration works. You see the live result of the API call as you write your billing logic.

Debug invoice issues mid-coding

Use `consult_document` to check why a previous invoice didn't go through. The agent brings the live status back into your editor. This cuts down on context switching. You stay in your flow while the agent pulls the exact state of your tax documents.

Retrieve XML data for your tests

Run `download_xml` to grab the authorized document for your test suites. The agent can then use this data to verify your internal logic. You work with real production-ready XML. It makes testing your tax logic against actual API outputs dead simple.

Setup guide

Set up Focus NFe MCP in Cursor

Prerequisites

Cursor installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP Settings

Go to Cursor Settings → MCP or open the Command Palette (Cmd+Shift+P / Ctrl+Shift+P) and search for "MCP: Add Server".
2

Add the Focus NFe MCP

Cursor will create or open .cursor/mcp.json in your project root. Paste the JSON snippet on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Enable Agent mode

Open Composer (Cmd+I / Ctrl+I) and switch to Agent mode using the dropdown at the top. MCP tools are only available in Agent mode.
4

Verify the connection

Ask Cursor something like "List my recent Focus NFe transactions." If the MCP tools are loaded correctly, Cursor will call the Focus NFe tools automatically. You can also check Settings → MCP for a green status indicator.

.cursor/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.

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Common questions about Focus NFe MCP in Cursor

Create a .cursor/mcp.json file in your project root. Define the server path there so that every contributor on your team has access to the same tools.

The server uses the token you provide in your environment variables. Cursor simply relays the tool calls you authorize during your session.

Yes, use the `cancel_document` tool during your development session. It allows you to simulate the full lifecycle of an invoice while building your app.

The data goes from the MCP server directly to the API provider. No tax information is stored or cached by your editor beyond the active session.

It does. You have access to both `emit_nfe` and `emit_nfse` tools, allowing you to handle product and service tax documents in the same project.

Use it with your favorite AI tools

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

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