Bring Nfeio
to Claude Desktop
Create your Vinkius account to connect NFe.io to Claude Desktop and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
Compatible with every major AI agent and IDE
What is the NFe.io MCP Server?
Connect your AI agents to NFe.io, the leading Brazilian platform for fiscal document automation. This MCP provides 10 tools to manage the full lifecycle of Service Invoices (NFS-e), validate Brazilian municipal codes (IBGE), and monitor corporate metadata for companies integrated into your billing environment.
What you can do
- Invoice Orchestration — Issue, cancel, and retrieve Service Invoices (NFS-e) for multiple cities across Brazil
- Company Management — List and inspect registered companies and their current fiscal configurations
- Service Definition — Manage service codes and tax metadata to ensure accurate fiscal reporting
- Fiscal Intelligence — Retrieve detailed city capabilities and validate IBGE codes for seamless municipal integration
- PDF Retrieval — Generate and retrieve download links for official invoice PDF and XML documents programmatically
How it works
- Subscribe to this server
- Log in to your NFe.io Dashboard
- Navigate to API Settings to obtain your API Key
- Identify your Company ID for the specific issuing entity
- Insert your credentials into the fields below to start managing your Brazilian fiscal workflows.
Who is this for?
- Brazilian SaaS Developers — automate the issuance of recurring service invoices via AI workflows
- Accountants & Finance Teams — quickly retrieve monthly invoice summaries and XML files via natural language
Built-in capabilities (10)
Cancel an issued Merchandise Invoice (NF-e)
Cancel an issued Service Invoice (NFS-e)
Register a new company (issuer) in NFe.io
Get detailed info for a specific company issuer
Retrieve details for a specific Merchandise Invoice (NF-e)
Retrieve details for a specific Service Invoice (NFS-e)
Issue a Merchandise Invoice (NF-e)
Issue a Service Invoice (NFS-e)
List all companies (issuers) registered in your NFe.io account
List all configured webhooks in NFe.io
Why Claude Desktop?
Claude Desktop is the definitive way to connect NFe.io to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 10 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.
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Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available
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Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface
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Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions
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Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network
NFe.io in Claude Desktop
Why run NFe.io with Vinkius?
The NFe.io connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect NFe.io using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
NFe.io and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect NFe.io to Claude Desktop through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
NFe.io for Claude Desktop
Every request between Claude Desktop and NFe.io is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
Can my AI automatically issue an NFS-e for a specific customer?
Yes! Use the issue_service_invoice tool with the Company ID and a JSON payload containing the customer data and service values. Your agent will trigger the issuance process with the relevant municipality.
How do I find the correct IBGE code for a Brazilian city?
You can use the list_cities tool to search for municipalities by name or state. The agent will return the official IBGE codes required for fiscal document validation.
Can I retrieve the download link for an invoice PDF?
Yes! Use the get_service_invoice tool with the unique Invoice ID. Your agent will return the metadata, including official links to download the PDF and XML versions of the document.
How does Claude Desktop discover MCP tools?
When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.
What happens if the MCP server is temporarily unavailable?
Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.
Can I connect multiple MCP servers simultaneously?
Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.
Is there a limit on the number of tools per server?
Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.
Does Claude Desktop support Streamable HTTP transport?
Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.
Server not appearing after restart
Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).
Authentication error
Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.
Tools not showing in chat
Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.
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