Bring Invoicing
to Claude Desktop
Create your Vinkius account to connect InvoiceXpress (Online Invoicing) to Claude Desktop and start using all 16 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.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the InvoiceXpress (Online Invoicing) MCP Server?
Connect your InvoiceXpress account to any AI agent and take full control of your certified invoicing and client management in Portugal through natural conversation.
What you can do
- Client Management — List all registered clients and retrieve detailed fiscal data including NIF/NIPC identifiers, addresses, and contact histories directly from your agent
- Invoice Lifecycle — Browse issued invoices and receipts, and access detailed line items and tax breakdowns for each document securely
- Estimate & Quotes — List and retrieve estimates and pro-forma invoices to monitor your sales pipeline and pending business proposals
- Item Inventory — Manage your catalog of faturable articles and services, including unit prices and associated VAT rates (IVA)
- Fiscal Compliance — Audit tax rates and exemptions active in your account to ensure mapping with official AT (Autoridade Tributária) tables
- Digital Delivery — Access permalinks to signed PDF documents for easy sharing and visual verification of fiscal items
How it works
- Subscribe to this server
- Enter your InvoiceXpress Account Name and API Key
- Start managing your certified billing from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Small Business Owners in Portugal — monitor outstanding invoices and manage client balances through natural conversation
- Freelancers & Service Providers — list and retrieve invoice PDFs for clients without leaving your development or design environment
- Accounting & Ops Teams — audit fiscal documents and ensure VAT compliance across the entire invoicing system
Built-in capabilities (16)
Se não for fornecido um NIF, usa o valor Consumer (ou similar requerido pelo portal). Registar um novo cliente no InvoiceXpress com dados fiscais completos
Precisas sempre de um ID de taxa legal (consulta a ferramenta list_taxes previamente). Criar um novo artigo ou serviço para ser faturado
Pesquisar um cliente pelo nome empresarial
Obter detalhes completos de um cliente pelo seu ID
Obter todos os detalhes e o link PDF de uma fatura
Obter detalhes de um artigo ou serviço pelo seu ID
Listar todos os clientes registados no InvoiceXpress
Listar todas as notas de crédito (devolução / acerto)
Listar todos os orçamentos emitidos de forma paginada
Listar guias de transporte
Listar todas as faturas emitidas
Listar todos os artigos e serviços configurados no InvoiceXpress
Listar todos os recibos de pagamento de clientes
Listar as séries de faturas ativas, ex: FT 2026/
Listar as taxas de IVA e isenções ativas na conta
Só os parâmetros enviados serão substituídos, os restantes mantêm-se inalterados. Atualizar os dados demográficos de um cliente existente
Why Claude Desktop?
Claude Desktop is the definitive way to connect InvoiceXpress (Online Invoicing) to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 16 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
InvoiceXpress (Online Invoicing) in Claude Desktop
Why run InvoiceXpress (Online Invoicing) with Vinkius?
The InvoiceXpress (Online Invoicing) 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 16 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 InvoiceXpress (Online Invoicing) using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
InvoiceXpress (Online Invoicing) and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect InvoiceXpress (Online Invoicing) 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
InvoiceXpress (Online Invoicing) for Claude Desktop
Every request between Claude Desktop and InvoiceXpress (Online Invoicing) 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 I see the signed PDF of an invoice through my agent?
Yes. Use the get_invoice tool with a specific Invoice ID. Your agent will return all document details along with a permalink to the signed PDF, allowing you to view or share the official fiscal document instantly.
How do I find a client by their company name?
The find_client tool allows you to search for a client directly by their business name. This is perfect for locating a client profile when you don't have their numerical ID handy.
Can I list the VAT rates available in my account?
Absolutely. Use the list_taxes tool to enumerate all VAT rates and exemptions configured in your InvoiceXpress account. Your agent will show the official AT mapping, which is essential before creating new items or invoices.
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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